Weschler Digital Instruments
Table of Contents
BarGraph Selector Guide
BarGraph Replacement Guide & Cross Reference
Premo BarGraph Meters & Controllers
Quatro BarGraph Meters
BG Series Tricolor Edgewise BarGraphs
BG Series Single Edgewise BarGraphs
BG Series Tricolor Circular BarGraphs
BG Series Circular BarGraphs
BG Series AC Power Circular BarGraphs
BG Series Large Edgewise BarGraphs
BG Series Dual Edgewise BarGraphs
BF Series Dual Concentric BarGraphs
Bowmar Series Single Edgewise BarGraphs
Gate Position Indicator
Input Level Matrix
Special Configurations
BarGraph Accessories
iii
v
1
7
11
15
19
23
27
31
35
39
41
45
47
48
49
How to Specify a BarGraph Meter
for an Existing Installation
How to Specify a BarGraph Meter
for a New Application
!
!
!
!
!
!
Use the Selector Guide to determine
which models fit the panel cutout.
Match the power supply voltage
available in the panel to the various
BarGraph supply options.
Select the input type and next higher
full scale value (see ordering guide for
the specific model).
Select other options such as display
colors, setpoint relays, analog
retransmit, communications.
Use this information to build the 15 digit
part number. Add notes to specify the
scale markings, legend & any special
requirements.
!
!
!
!
!
Use the Selector Guide to determine
which models have the desired input
type and range.
Select a model based on meter size
and bar style.
Specify input type and next higher full
scale value (see ordering guide for the
specific model).
Select power supply to match the
supply voltage available in the panel.
Select other options such as display
colors, setpoint relays, analog
retransmit, communications.
Use this information to build the 15 digit
part number. Add notes to specify the
scale markings, legend & any special
requirements.
Weschler Digital BarGraph Selector Guide
Style
Series
TriColor BarGraph
P/N
begins with
Bezel Size Segments
Digits
Data Sheet
Page
Quatro
"
TriColor Edgewise
"
Premo
TriColor Edgewise
"
Premo
7
7
11
11
1
11
11
("W x "H)
Edgewise Single
9/64 DIN Vert/Horiz
6" Vert/Horiz
6" Vertical
6" Horizontal
6" Vertical
7.5" Vertical
12" Vertical
12" Vertical
Quatro
Quatro
BG-252TC
BH-252TC
Premo
BV-5ATC
BD-101TC
Premo
L
M
2
5
PG
A
K
PD
1.42 x 5.69
1.7 x 6.04
1.7 x 6.04
6.04 x 1.7
1.7 x 6.04
1.75 x 7.6
3.14 x 12.9
3.14 x 12.9
101
101
40
40
101
40
40
101
4
4
5
5
5
5
5
6
4.5" Square
4.5" Square
8.5" Square
6" Round
8" Round
Square / Round
Premo
BG-241TC
BG-261TC
BG-251TC
BG-281TC
various
P
4
6
3
8
4, 6, 8
4.42 x 4.42
4.42 x 4.42
8.75 x 8.75
7.5" dia
10" dia
various
101
50
50
50
50
50
6
5
5
5
5
4.5
Premo
TriColor Circular
"
"
"
Gate Position
1
19
19
19
19
45
Quatro
Quatro
BG-252
BW-1316
Premo
BV-5A
PG-101
BD-101
Premo
PC-101
BH-252
PH-101
L
M
2
7
PG
A
V
K
PD
C
5
H
1.42 x 5.69
1.7 x 6.04
1.7 x 6.04
2.13 x 6.0
1.7 x 6.04
1.75 x 7.6
4.05 x 10.1
3.14 x 12.9
3.14 x 12.9
2.835 x 5.7
6.04 x 1.7
5.7 x 2.835
101
101
101
101
101
101
51
101
101
101
101
101
4
4
3.5 or 4.5
3.5 or 4.5
5
3.5 or 4.5
3 or 4
3.5 or 4.5
6
3.5 or 4.5
3.5 or 4.5
3.5 or 4.5
Quatro
"
Single Edgewise
"
Premo
Single Edgewise
Large Edgewise
"
Premo
Single Edgewise
"
"
7
7
15
15
1
15
31
31
15
15
15
Quatro
Quatro
BI-1251
PG-202
PC-202
L
M
X
W
D
1.42 x 5.69
1.7 x 6.04
1.7 x 6.04
4.05 x 10.1
2.835 x 5.7
101
101
101
51
101
---------3 or 4
3.5 or 4
Quatro
"
Dual Edgewise
Large Edgewise
Dual Edgewise
7
7
35
31
35
BD-101 Multi K
≈2.7n x 15.4
101
3.5 or 4.5
Large Edgewise
31
1
Circular
Standard BarGraph
Edgewise Single
9/64 DIN Vert/Horiz
6" Vert/Horiz
6" Vertical
6" Vertical
6" Vertical
7.5" Vertical
10" Vertical
12" Vertical
12" Vertical
DIN Vertical
6" Horizontal
DIN Horizontal
1
Edgewise Dual
9/64 DIN Vert/Horiz
6" Vert/Horiz
6" Vert/Horiz
10" Vertical
DIN Vertical
Edgewise Multiple
12" Vertical
BG-252, BV-5A, BW-1316 can also be ganged without special hardware
Circular
4.5" Square
4.5" Square
8.5" Square
6" Round
8" Round
Premo
BG-241
BG-261
BG-251
BG-281
P
4
6
3
8
4.42 x 4.42
4.42 x 4.42
8.75 x 8.75
7.5" dia
10" dia
101
101
101
101
101
Single
Dual
BF6401
BF6402
F
E
6.5 x 7.1
6.5 x 7.1
101
101
0.62 x 4.43
1.27 x 6.38
1.4 x 5.7
1.4 x 10.7
100
50
50
100
6
3.5, 4.5 or 5
3.5, 4.5 or 5
3.5, 4.5 or 5
3.5, 4.5 or 5
Premo
1
Single Circular
or
AC Power Circular
23
27
Concentric
3.5 or 4.5 BF Series Concentric
3.5 or 4.5
"
39
Bowmar BarGraph
3" Vert/Horiz
5" Vert/Horiz
5" Vert/Horiz
10" Vert/Horiz
APM-100**
APM-500
APM-600**
APM-800
-------------
Bowmar Series
"
"
"
41
41
41
41
**also available as BG-xxx with card edge connector
Chart of Available Input Types and Levels
Input Level Matrix
47
for characters 7 & 8 of the BarGraph part number (except Bowmar, Quatro, Premo)
bg selector guide 10
WESCHLER INSTRUMENTS
440-238-2550
www.weschler.com
email: sales@weschler.com
iii
Weschler Digital BarGraph Selector Guide
Features & Functions
Model ⇒
Input Channels
Input Ranges
DC V
DC A
Process 4-20mA
Process 1-5V
Premo
1-4
20mV - 200V
2mA - 5A
Quatro
1-2
20mV - 200V
2mA - 5A
Tricolor
Edgewise &
Tricolor
Circular
1
20mV - 250V
20μA - 5A
Single
Edgewise &
Large
Edgewise
Single
Circular
1-2
20mV - 250V
20μA - 5A
1
20mV - 250V
20μA - 5A
Dual
Edgewise
2
20mV - 250V
20μA - 5A
BF
Concentric
1-2
20mV - 250V
20μA - 5A
√
√
√
√
√
√
√
√
√
√
√
√
√
√
200mV - 600V
2mA - 5A
200mV - 600V
2mA - 5A
1V - 250V
50mA - 5A
1V - 250V
50mA - 5A
1V - 250V
50mA - 5A
1V - 250V
50mA - 5A
1V - 250V
50mA - 5A
T/C
RTD
Pressure/Load
Strain Gauge
Pressure (direct)
J,K,T,R,S,B,N
Pt, Cu, Ni
J,K,T,R
Pt
J,K,T
Pt, Cu
J,K,T
Pt, Cu
J,K,T
Pt, Cu
J,K,T
Pt, Cu
J,K,T
Pt, Cu
√
√
√
√
√
√
Line Frequency
Frequency/RPM
Resistance
Potentiometer
LVDT
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
Counter
Quadrature
pH
ORP
Power (W,VAR,PF)
√
Power Supply
5VDC
12VDC
24VDC
28VDC
48VDC
125VDC
250VDC
12VAC
24VAC
120VAC
240VAC
50mV - 100V
10μA - 10A
√
200mV - 600V
2mA - 5A
200mV - 600V
2mA - 5A
Features
Dimming
Datalogging
PID Control
1
√
AC V
AC A
AC V TRMS
AC A TRMS
Outputs
Setpoints/Relays
Analog ReTx
Digital Comm
Bowmar
√
√
√
√
1Ø
6
2
232, 485, USB
Ethernet, TCP/IP
ASCII, Modbus
8 + External
1Ø, 3Ø [ACP]
4
1
4 + External
4
1
232, 485
ASCII
4 per channel
1 per channel
232, 485
ASCII
4
1
232, 485
ASCII
4 per channel
1 per channel
232, 485
ASCII
4 per channel
1 per channel
232, 485
ASCII
16
2
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
9/18/2012
iv
WESCHLER INSTRUMENTS
Power and Process Measurements
BARGRAPH REPLACEMENT GUIDE
Existing Meter
Weschler BarGraph
Existing Meter
A&M/Weston 49 Series
BG/BH-252, Quatro
Crompton 128
"
Dixson BB101 (All Models)
"
GE/Yokogawa 180
"
Sigma/International Instruments 1151
"
Weschler/Westinghouse V/H252
"
Dixson BJ101
Sigma/International Instr. 9262/9263
PC-101/202
"
Foxboro 6400
BF6400
PG-101/202, Premo
BD-101, Premo
Bailey Draft Gauges
Dixson K051
Haye Republic 216
Dixson BB202
BI-1251, Quatro
Sigma/International Instruments 1251
"
Crompton 077, 078
BG241, Premo
Dixson BEW51, BW051/P
"
GE/Yokogawa AB/DB30 or 40
"
Modutec 4SB
"
Weschler/Westinghouse K231/241
"
Hays Republic 3600/V5A
Weschler BarGraph
BV-5A
"
Ashcroft 6"
Ashcroft 8"
BG-251
BG-281
Crompton 079
GE/Yokogawa AB/DB-16
Weschler/Westinghouse K261
BG-261
"
"
Foxboro 65PP
Weston 1316
BW-1316
"
Cross Reference - Bargraph Model to Data Sheet
Data
Sheet Premo
pg
1
Model
Quatro
Tricolor
Edgewise
Single
Edgewise
Tricolor
Circular
Single
Circular
7
11
15
19
23
ACP
AC Power
Large
Circular Edgewise
27
31
Dual
Edgewise
BF Series
Concentric
Bowmar
Gate
Position
35
39
41
45
X
X
APM
BD101
X
X
BF6401
X
BF6402
X
BG241
X
X
BG251
X
BG252
X
X
X
X
X
X
X
BG261
X
X
X
X
BG281
X
X
X
X
X
BH252
X
X
X
BI1251
X
BV5A
X
BW1316
X
PC101
X
X
PC202
PG101
X
PG202
X
X
PH101
Premo
Quatro
X
X
Page numbers refer to the Weschler Digital Bargraph Instruments catalog
v
Premo BarGraph Meters
Available in three
case styles
for M o n i t o r i n g a n d C o n t r o l
•
•
•
•
Style C
6 digit, alpha-numeric LED display
101 segment bargraph in red, green or tricolor
Rugged ANSI switchboard cases
RS-232, RS-485, USB & Ethernet interface options
Direct Measurement of
DC Current & Voltage
AC Current & Voltage
Process Loops
Frequency / Counts
Speed Pickups / RPM
Quadrature
Power (DC & Single Phase)
Thermocouples
RTDs
Load Cells / Strain Gauges
LVDTs
Pressure
Resistance / Potentiometers
pH / ORP
A deluxe bargraph indicator with enhanced control capabilities. Flexible and highly configurable for display of
electrical signals and process parameters. Combines the precision of a digital readout with a vivid proportional
display. Includes numerous computation functions, SCADA options and an extensive input module selection.
Features
•
•
•
•
•
•
•
Single & multiple channel inputs
Adjustable bargraph span & zero position
Bar & digital display can be set to different channels
Datalogging and PID control functons
Cross channel math capability
Six smart setpoints with 8 selectable functions
Front panel setpoint status indicators
The Premo BarGraph line is based on a high resolution A/D
converter and 32 bit CPU with floating point math capability. This high performance measurement and computation
platform provides unique capabilities in a switchboard
instrument. In addition to displaying and retransmitting a
single channel signal, the Premo meter can display two
channels, perform cross channel math, log data and control
processes.
Setpoint Control
Up to six setpoints can be configured for control and alarm
functions. Each relay may be programmed to activate
above or below a setpoint, operate with hysteresis or delay,
latch, track another setpoint, perform one shot, pulse and
repeat timer functions or On/Off control. For processes with
overshoot or undershoot, the PID mode on SP1 & SP2 provides stable control.
Datalogging
Premo BarGraph Meters will log data in either linear (writes
until full) or cyclic (overwrites oldest data) FIFO modes. A
1
WESCHLER
INSTRUMENTS
DIVISION OF HUGHES CORPORATION
•
•
•
•
•
Up to 6 relay outputs for control and alarms
Single or dual analog retransmit option
Wide power supply range (AC & DC)
8 level brightness control from the front panel
Sensor excitation to power 4-20mA transmitters,
bridge type sensors or other transducers
• Programmable input filter and display resolution
• Digital communications and PC setup software
reading can be triggered from the program button, a digital
input, time or an alarm condition. Optional memory allows
storage of up to 4000 readings in non-volatile EEPROM.
The optional real time clock can be used to initiate readings
and time stamp the data. A lithium battery provides clock
back-up in the event of power loss. The clock will also activate a setpoint or control function at a preset time.
Display
The bar can display 1 of 4
inputs or 1 of 2 totalizers.
It can be setup for min/max
mode, linear/log scaling,
offset zero, center zero,
suppressed zero and/or
peak/valley display. The
source for the six digit
readout is independently
selected. Decimal position & display brightness
are set from the front panel.
Rear view: rugged steel case
and modular plug connections
16900 FOLTZ PARKWAY
CLEVELAND, OHIO 44149 USA
Phone: (440) 238-2550 Fax: (440) 238-0660
www.weschler.com
Email: sales@weschler.com
Premo Edgewise BarGraphs
All the features of the Premo family
in two edgewise case sizes:
6" Edgewise Switchboard
12" Large Edgewise
• 6 digit, alpha-numeric LED display
• Bright 101 segment tricolor bar
• Enhanced table calibration for tank level,
square law & other non-linear measurements
• Optional SD memory card for long term data
logging
• 6” case fits standard ANSI panel cutout
• 12” case fits Bailey draft gauge panel cutout
Style G
Connections
Analog Retransmit
A1
Output –
A2
Output +
Input Signals
Varies by module (S1-S16)
Typical DCV & mA:
S1
+
S2
24V Excitation
S3
–
Style D
Style G Faceplate
Legend:
0.25"x2.7" (6x73mm) max.
Bar Scale:
0.6"x4.1" (14x104mm) max.
Bar Graduations:
Specify linear, logarithmic
or custom & number of
sub divisions.
A1
A2
A3
AC Neutral or DC
AC Line or DC +
Relay Outputs
4 Form A or SS
R1
SP4 Com
R2
SP4 NO
R3
SP3 Com
R4
SP3 NO
R5
SP2 Com
R6
SP2 NO
R7
SP1 Com
R8
SP1 NO
–
Style D & G
Dual
channel
Serial Communications
RS-232 RS-485
C1
--C2
Com
Com
C3
+5VDC
+5VDC
C4
TXD
A (high)
C5
RXD
B (low)
C6
---
Functions
F1
Program Lock
F2
Reading Hold
F3
Display Test
F4
Common
F5
Capture
Power
P1
P2
Output 2 +
Output 1 & 2
Output 1 +
Single
channel
–
6 Form A
SP4-6 Com
SP6 NO
SP5 NO
SP4 NO
SP1-3 Com
SP3 NO
SP2 NO
SP1 NO
Dimming
D1
Dim +
D2
Common
Form C & Form A 5V/ TTL or Open Coll.
SP2 NO
Com
SP2 NC
5V or Ext V+
SP2 & 4 Com
SP6
SP4 NO
SP5
SP1 NO
SP4
SP1 NC
SP3
SP1 & 3 Com
SP2
SP3 NO
SP1
Style C
Style C Faceplate
Primary Legend:
0.5"x2.0" (13x51mm) max.
Bar Legend (optional):
0.4"x1.4" (10x36mm) max.
6
Digital Legend (optional):
0.23"x1.9" (6x48mm) max.
Bar Scale:
2 digit markings standard;
longer markings may
require smaller legends.
Black on white standard, white
on black available on request,
Bar Graduations:
Specify linear, logarithmic
or custom & number of
sub divisions.
Mating connectors supplied (except
serial communications).
WD-08 10/12
2
Premo BarGraph Meters
Display Examples
Traditional Red Bar with 6 setpoints
active. Setpoints above the signal level
are indicated by on segments; setpoints
below show as off segments. Bar and
digital display are both set to 100A full
scale. Digital display shows 5 digit resolution with a fixed alpha sixth character.
Tricolor Bar in Normal Mode with 6 setpoints active. Entire bar changes to the
selected color when the signal passes a
setpoint. Bar scale is percent of the 2A
full scale input. Digital display reads 2A
full scale with 4.5 digit resolution.
Tricolor Bar in Banded Mode. Only bar
segments between the setpoints show
in the assigned color. The bar is
scaled to show the input from 0 to
100A. Using a 24bit DC input module,
the digital display shows the input up to
300A, with 1mA resolution.
Case Dimensions
1/4-28 x 5/8" studs
Style
C
Style
G
2.99"
76.0mm
Style
D
2.99"
76.0mm
Standard
panel
cutout
5.88"
149.4mm
Optional
mounting
panel
cutout
3
for Monitoring and Control
Specifications
Input Accuracy:
DCV (24 bit)
DCV, DCA
ACV, ACA
Temperature
Direct Pressure
Frequency/RPM
Strain/Load (24 bit)
Process
Resistance/Pots
Input Characteristics:
DCmV, DCV
ACmV, ACV
DCmA, ACmA
DCA, ACA
Line frequency
Varies by function & module
±(0.01% of reading + 2 counts)
±(0.03% of reading + 2 counts)
±(0.07% of reading + 5 counts)
±(0.05% of reading + 3 counts)
±(1.0% of range + 3 counts)
±(0.01% of reading + 2 counts)
±(0.02% of reading + 3 counts)
±(0.03% of reading + 2 counts)
±(0.05% of reading + 2 counts)
Analog Output:
mA out
Volts out
Dual out
Accuracy:
Update Rate:
Isolated 16 bit, user scalable & reversible
4-20mA, 500Ω maximum loop resistance
0-10VDC, 500Ω minimum load resistance
Two 0-10VDC outputs, shared low
0.02% FS with 0.4μA or 250μV resolution
7/second typical
Communications:
Isolated RS-232, 2-wire RS-485 (half
duplex) or 10/100Base-T Ethernet
ASCII, Modbus RTU or Modbus TCP/IP
>500kΩ input resistance
>1MΩ input resistance
2V burden at full scale
<130mV burden at full scale
4MΩ input resistance
Power Supply:
(DC-400Hz)
Bargraph Display:
Digital Display:
101 segment red, green or tricolor LED
6 digit alpha-numeric LED
Range -199999 to 999999 counts
5 positions or off, front panel selectable
Bar: entire bar flashes
Digital: flashing OVER
Bar: first segment flashes
Digital: flashing UNDER
Six red LEDs, 1 per setpoint
Last digit may be set to a fixed alpha-numeric
character.
8 levels, front panel selectable,
Rear panel continuous dimming optional
Decimal Point:
Positive Overrange:
Negative Overrange:
Annunciators:
Text:
Display Dimming:
Protocol:
Sensor Excitation:
Operating Temperature:
Humidity:
Storage Temperature:
Warm-up time:
EMI:
Isolation (50/60Hz):
2500VAC
500VAC
A/D Converter:
Conversion Rate:
Auxiliary A/D:
Data Memory:
Macro Memory:
Real Time Clock:
(optional)
Counter Functions:
Data Logging:
Offset Functions:
Math Functions:
Linearization:
Signal Processing:
Timer:
Totalizer:
Peak and Valley:
Setpoint Functions:
Setup:
Relay Output:
Form A (SPST)
Form C (SPDT)
DC SSR
AC/DC SSR
Open Collector
Dual slope, bipolar 17 bit, 2V full scale
3-10/second (varies by function)
16 or 24 bit converter on some input modules
Optional 1M EEPROM stores 4000 readings
4k flash standard
Year:Month:Date:Hour:Minute:Second
15 year lithium battery backup
Two built-in Up/Down counters
Logging with time stamp to optional memory.
Trigger on time interval, setpoint, manual
Tare, compensation and calibration
Sum, difference, ratio or product of two inputs
4 selectable 32 point tables, cascadable
Average, smart filter, rounding, square root
Time up, time down or real time clock modes
Two, for total or batch total
Min/Max storage with front panel recall
Hysteresis, on/off delays, one shot, pulse and
repeat timers, latching, dual PID, setpoint
tracking, resetting of registers, initiating of
logging and printing
Front panel menu or PC configuration software
Up to 6 mechanical or solid state control outputs
5A@250VAC, 5A@30VDC (resistive)
10A@240VAC, 8A@24VDC (resistive)
210mA, 400VDC
140mA, 400VDC or peak AC
40V, 50mA from external V+ or internal 5V (no
isolation to function common)
WESCHLER INSTRUMENTS
70 Years of Power and Process Measurements
50VAC
Connectors:
Warranty:
Style C Mechanical:
Bar:
Digits:
Case:
Mounting:
Weight:
Style G Mechanical:
Bar:
Digits:
Case:
Mounting:
Weight:
Style D Mechanical:
Bar:
Digits:
Case:
Mounting:
Weight:
85-265 VAC / 95-370 VDC;
18-48 VAC / 10-72 VDC;
6W, 12VA max. on Style C & G;
10W, 20VA max. on Style D
Available on some input modules.
24VDC @50mA (2-wire loop power)
5 or 10VDC @120mA (bridge excitation)
0 to 55°C
<95% RH@40°C (non-condensing)
-20°C to 70°C
10 minutes
EN61000-3/4/6 and EN61010-1
between input, power & relays;
between analog out, power & relays;
between relays & function lines;
between serial, power & relays;
between any pin and case
between input & serial or analog out;
between analog out & function lines
between serial & analog out or function lines
Plug-in, screw terminal mating connectors
included, accept #14-24 AWG wire;
fixed screw terminals on 1A & 5A inputs;
2.5mm tubing to direct pressure modules,
specialty connectors on some modules.
RJ-6 on RS-232 & RS-485; RJ-45 on Ethernet
Two years, material and workmanship
7.25" length, 235° arc, ±60° viewing angle
0.43" (10.9mm) height
Steel housing, molded front & rear bezels.
Remove rear bezel to change input or relay
options.
Fits standard ANSI 4" switchboard cutout
22 ounces (0.7kg)
10" length, ±60° viewing angle
0.31" (7.9mm) height
Steel housing, molded rear bezel. Remove
rear bezel to change input or relay options.
Fits standard ANSI 6" switchboard cutout
16 ounces (0.5kg)
4" length, ±60° viewing angle
0.43" (10.9mm) height
Steel housing, metal front, molded rear bezel
Fits Bailey draft gauge cutout
31 ounces (0.9kg)
Phone: (440) 238-2550 Email: sales@weschler.com
4
Premo BarGraph Applications
Sample applications which illustrate a few of the many capabilities of the Premo family.
Single Channel Indicator with Alarms
The Premo is configured with a thermocouple input, tricolor bar, 4 relays
and analog retransmit. Both the bar and the digitial display show the
temperature. Relay 1 closes below SP1, relay 2 & 3 close above their
setpoints. Relay 1 & 2 are wired in parallel to a warning light, indicating
too low or too high a temperature (amber bar). Relay 3 activates a
warning bell for an emergency over temperature condition (red bar).
For normal temperatures the bar is green. The temperature is transmitted to a SCADA system by the 4-20mA analog output.
Power Monitor with Retransmit
For measurement of AC power, the Premo is configured with the KAP
input module. A CT is connected to ch 1, a PT to ch 2. The bar is setup
to show load amps. The digital display reads kW. Pressing the up arrow
momentarily shows amps in the digital display. Pressing the down arrow
alternately shows volts and power factor. kW and power factor are
retransmitted on the dual analog output. All four values are available
through the RS485 interface.
Two Channel Indicator with On/Off Control
The Premo is configured with a 2 channel process input, red
bar, 2 relays and Ethernet. An AC current transducer with a 05VDC output connects to channel 1. The bar shows the pump
motor load current. The digital display shows flow rate from an
inline sensor with a 4-20mA output connected to channel 2. A
booster pump is activated when the flow rate exceeds setpoint
2 (hysteresis or timer modes can be used to prevent short
cycling). The main pump is shut down (using timer or manual
reset modes) when its current exceeds setpoint 1. Channel
readings & status are sent to the factory network through the
Ethernet interface.
Two Channel Monitor with Datalogging
The Premo is configured with a 2 channel RTD input, tricolor bar,
expanded memory, RS232 interface and 4 relays. The RTD sensors
are placed at the inlet and outlet of a heat exchanger. The outlet temperature appears on the digital display. The bar (with expanded scale)
shows the temperature drop in the heat exchanger (ch1-ch2). A green
zone is defined for >20°, amber for 10-20°, red for <10°. Setpoint
relays are used to warn of malfunctions and activate additional cooling.
Cyclic datalogging stores readings that can be transferred to a serviceman’s laptop for fault analysis.
PID Control & Macro Functions
This application measures the force on each end of a pinch
roller. The Premo is configured with a 2 channel load cell module, red bar, 4 relays, analog output, standard memory and
RS485 communication. The center zero bar shows the pressure
difference (ch1-ch2). The digital display shows the total pressure
(ch1+ch2). Setpoint 1 is used to configure analog PID control of
the total pressure. SP2 & 3 activate left or right relief valves
when the imbalance exceeds either setpoint. The macro is used
for the special math calculation.
5
WESCHLER INSTRUMENTS
Phone: (440) 238-2550 Fax: (440) 238-0660
www.weschler.com
Email: sales@weschler.com
Premo BarGraph Configuration Guide
PART NUMBER
Select desired code for each category to build the 15 digit part number
X
Certain option combinations
not available on all models.
OPTIONS
D
External dimming
W
Spray tight front bezel (style C only)
K
Conformal coating
M
512M SD memory card (styles G & D only)
Y
Spray tight front & rear (style C only)
TYPE
P
Premo Bargraph Meter
STYLE
C
4.25” Switchboard (BG241P)
D
12” Edgewise Vertical (BD101P)
G
6” Edgewise Vertical (BG252P)
BAR
R
G
T
NON-VOLATILE MEMORY
A
1M data memory with real time clock
X
Standard memory (macro & linearization)
COLOR
Red
Green
Tricolor
RELAYS
E
One 10A Form C
C
Two 10A Form C
D
Two 10A Form C & Two 5 Amp Form A **
F
Four 5A Form A
H
Six 5A Form A **
J
Four 400V, 210mA DC SSR
K
Four 400V, 140mA AC/DC SSR
L
Six Open Collector or 5V TTL Outputs **
S
Special
** shared commons
X
None
DIGITAL DISPLAY COLOR
R
Red
G
Green
INPUT (SINGLE CHANNEL) ¶
ABQ AC 200mV/2V/20V, scaled RMS
AAQ AC 200/600V, scaled RMS
AGQ AC 200mV/2V/20V, True RMS
AFQ AC 200/600V, True RMS, 6kHz max.
ACQ AC 2/20/200mA, scaled RMS
ADQ AC 1A, scaled RMS
AEQ AC 5A, scaled RMS
AHQ AC 2/20/200mA, True RMS
AJQ AC 1A, True RMS, 1kHz max.
ALQ AC 5A, True RMS, 1kHz max.
DBQ DC 20/50/100/200mV §
DAQ DC 2/20/200V/Custom §
DHP DC 2/20/200V/Custom w/ Ext. Decimal Select
DCQ DC 2/20/200mA §
DGQ DC 1A
DDQ DC 5A
PDQ Universal Process 2/5/10/20/200V/2mA/20mA/Custom §
REP Resistance, 2/3/4-wire, 200/2k/20kΩ
RCQ Linear Potentiometer, 3-wire, 1kΩ min
TMP Thermocouple Input, J/K/R/S/T/B/N §
THP RTD, 100Ω Pt. 2/3/4-wire
TKP RTD, 120Ω Nickel 2/3/4-wire
TLP RTD, 10Ω Copper 2/3/4-wire
GBQ Direct Pressure, 1 psi differential/gage §
GDQ Direct Pressure, 5 psi differential/gage §
GEQ Direct Pressure, 15 psi absolute §
GFQ Direct Pressure, 15 psi differential/gage §
GGQ Direct Pressure, 30 psi absolute §
GHQ Direct Pressure, 30 psi differential)/gage §
GJQ Direct Pressure, 100 psi absolute §
GKQ Direct Pressure, 100 psi differential/gage §
SAQ Strain Gage 5/10VDC Exc., 2/20mV/V, 4/6-wire
SBQ Pressure 5/10VDC Exc., 2/20mV/V, 4/6-wire
SCQ Pressure Ext Exc., 2/20 mV/V, 4/6-wire
SDQ Pressure/Load Cell 2/20mV/V, 5/10V Exc, 4-wire
SEQ Pressure/Load Cell Ext Exc., 2/20mV/V, 4-wire
SFQ Pressure 2/20 mV/V w/ High Impedance, External Excitation
EAP Line Frequency, 50-500VAC
FAP Univ. Frequency/RPM/Up Down Counter, 0-24V, 100Hz-100kHz §
CAP Quadrature Counter, 0-24V, 20kHz max §*
CBP Quadrature Counter, 0-24V, 20kHz max with dual SSRs §*
HAP pH indication w/ Manual Temperature Compensation
HBP pH indication w/ Automatic Temperature Compensation
HCP Oxidation Reduction Potential (ORP)
KAP Single Phase Power (Watts, V, A, Hz, PF, Whr) 300V/1A *
KBP Single Phase Power (Watts, V, A, Hz, PF, Whr) 300V/5A *
KCP DC Watts, 200V / 50mV from shunt
KDP Single Phase Power (Watts, V, A, Hz, PF, Whr), 600V/1A*
KEP Single Phase Power (Watts, V, A, Hz, PF, Whr), 600V/5A*
DAS DC 25mV-2V, 16 bit, 1-800Hz update rates (50Hz) §*
DBS
DC 25mV-2V, 16 bit, 1-960 Hz update rates (60Hz) §*
¶
See www.weschler.com for multi-channel & multi-function
input modules.
Also specify input range, faceplate scale and
faceplate legends when ordering.
COMMUNICATIONS
1
Isolated USB, ASCII Protocol
2
Isolated RS-232, ASCII Protocol (includes CBL2 cable)
3
Isolated USB, Modbus Protocol
4
Isolated RS-485, ASCII Protocol (includes CBL4 cable)
5
Isolated RS-232, ModBus RTU
6
Isolated RS-485, ModBus RTU
8
Isolated Ethernet, ASCII
9
Isolated Ethernet, Modbus TCP
RETRANSMIT
A
Isolated 16 Bit Current Output, 4-20mA
V
Isolated 16 Bit Voltage Output, 0-10VDC
D
Isolated 16 Bit Voltage Output, Dual 0-10VDC
S
Special
X
None
POWER
1
85-265VAC / 95-370VDC (orange connector)
2
18-48VAC / 10-72VDC (black connector)
S
Special
DCS
DDS
DES
DFS
DGS
DHS
RAS
RBS
SGS
SHS
SKS
SLS
YAS
XSX
DC 25mV-2V, 16 bit, 1-800Hz w/ dual isolated SSRs (50Hz) §*
DC 25mV-2V, 16 bit, 1-960Hz w/ dual isolated SSRs (60Hz) §*
DC 30mV-60V, 24 bit (1 million count) 1-400Hz (50Hz) §*
DC 30mV-60V, 24 bit (1 million count) 1-480Hz (60Hz) §*
DC 30mV-60V, 24 bit 1-400Hz w/ dual isolated SSRs (50Hz) §*
DC 30mV-60V, 24 bit 1-480Hz w/ dual isolated SSRs (60Hz) §*
Single 3-wire Potentiometer, 24 bit (50Hz) *
Single 3-wire Potentiometer, 24 bit (60Hz) *
Pressure/Load Cell, 16 bit (50Hz) *
Pressure/Load Cell, 16 bit (60Hz) *
Pressure/Load Cell, 1-20mV/V, 24 bit (50Hz), 5V Excitation *
Pressure/Load Cell, 1-20mV/V, 24 bit (60Hz), 5V Excitation *
Magnetostrictive § *
Special
§ includes 24V sensor excitation
* module includes A/D converter & digital signal processor
Example: P C T R D B Q 1 A 2 F X D W X
(P) Premo, (C) 4.25” switchboard case, (T) tricolor bar, (R) red digital,
(DBQ) DC mV input, (1) high voltage supply, (A) 4-20mA retransmit,
(2) RS-232 ASCII, (F) four 5A relays, (X), (X) standard memory, (W)
spray tight front, (X) no other option
WESCHLER INSTRUMENTS
6
Quatro BarGraph Meters
for Monitoring and Control
•
•
•
•
101 segment bargraph in red, green or tricolor
4-digit, 10000 count LED display
6" edgewise & 9/64 DIN case sizes
Vertical or horizontal orientation
Direct Measurement of
DC Current
AC Current
DC Voltage
AC Voltage
Frequency
Process Loops
Thermocouples
RTDs
Load Cells / Strain Gauges
Speed Pickups / RPM
Pressure
Resistance / Potentiometers
A flexible and highly configurable indicator for display of electrical signals and process parameters. Combines
the precision of a digital readout with a vivid proportional display. Ideal for new applications and replacement
of existing analog gauges or digital panel meters. Simple to install and set up.
Features
• Single & dual bar configurations
• Adjustable bargraph span - the bar can display
any part of the digital display range
• Bargraph center zero mode
• Four programmable setpoints
The Quatro BarGraph line is based on a precision 12000
count A/D converter and microprocessor control. Intelligent
filtering smooths noisy signals while quickly responding to
large signal changes. A wide selection of input modules
easily interface to transducers, sensors and common
process signals. Multi-range modules increase field configurability. Range selection is made by moving the on-board
jumper.
Setpoints & Relays
Up to four setpoints can be configured for control and alarm
functions. Setpoints are indicated on the bar display by a lit
segment if the bar is below the setpoint and a dark segment
if the display is above the setpoint. Up to 4 setpoints are
available in each unit. Relays can be ordered to provide
external control and alarms. Each relay may be configured
to activate above its setpoint or below its setpoint. High current outputs handle SPST and SPDT switching up to 10A
and 250VAC. Solid state relays (DC or AC/DC) are also
available in the edgewise case. Setpoints 1 & 2 can be
combined to define a hysteresis band for relay one. This is
particularly useful in tank level applications. Depending on
the relay mode selected, it will perform either a tank fill or
tank empty function.
7
WESCHLER
INSTRUMENTS
DIVISION OF HUGHES CORPORATION
•
•
•
•
•
Front panel setpoint status indicators
Up to 4 relay outputs for control and alarms
Analog retransmit option with adjustable span
Wide power supply range (AC & DC)
Sensor excitation to power 4-20mA transmitters
or bridge type sensors
Bar Display
The 101 segment bar provides 1% resolution for the selected bar span, which can be any portion of the input range.
Red, green and tricolor bars are available. The tricolor bar
can be set to change color based on signal level. This provides an easily seen indication when a measured parameter needs attention. The setpoint values are the transition
points for color changes. Any color can be set between two
adjacent setpoint values. In a common application, the bar
is green when the signal is below SP1. When the signal is
between SP1 & SP2, the entire bar changes to orange.
Above SP2, the entire bar changes to red.
Analog Retransmit
A 0-10V or 4-20mA isolated analog output is available for
remote indication or SCADA interface. The output can be
adjusted to track any portion of the input span. Rescaling
of the bar will not affect the analog output. An internal
jumper quickly changes between V & mA.
Initial setup on the Quatro meters is done through the front
panel buttons. Once set, installation of a rear panel jumper
disables this feature.
16900 FOLTZ PARKWAY
CLEVELAND, OHIO 44149 USA
Phone: (440) 238-2550 Fax: (440) 238-0660
www.weschler.com
Email: sales@weschler.com
Quatro BarGraph Meters
6" Edgewise Case
9/64 DIN Case
9mm
(0.35")
36mm
(1.42")
118mm
(4.65")
Connectors
12mm (0.47")
Mounting
Clip
137.7mm 142.3mm
(5.62")
(5.42")
144mm
(5.69")
31mm
(1.22")
32.2mm
(1.27")
133.5mm
(5.27")
PANEL CUTOUT
BACK VIEW
0.54"
13.72mm
2.166"
55.016mm
6.41"
162.81mm
FRONT VIEW
1.770" *
44.96mm
5.675"
144.15mm
5.695"
144.66mm
SIDE VIEW
BACK VIEW PANEL CUTOUT
6.035"
153.29mm
138mm
(5.45")
SIDE VIEW
FRONT VIEW
1.700"
43.18mm
33mm
(1.3")
*add 1.74" (44.20mm) for each additional meter
DIN PINOUT
EDGEWISE PINOUT
Output
Zero Span Lo Hi
100
90
Output
Zero Span Lo Hi
Zero Span Zero Span
100
240
700
100
4
70
3
60
2
°
A
C
180
600
75
1
50
P
S
I
40
V
O
L
T
S
120
500
30
50
P
E
R
C
E
N
T
75
SP
4
3
2
50
20
60
400
25
Zero Span
1
90
D
C
70
V
O
L
T
S
60
40
30
25
20
P
0
300
GPM
SP1 SP2 SP3 SP4
Style A
0
50
80
45
70
40
60
35
50
30
40
25
30
20
20
15
10
10
0
5
inches
0
SP1 SP2
0
Style C
scale left
Style D
Style A
30
8.8.8.8.
40
50
60
70
80
SP
P
1
90
2
100
3
P
R
E
S
S
U
R
E
mm
VDC
Style A
0
1
2
3
1
4
Zero
DC AMPS
400
10
0
200
75
0
50
25
SP4
Span
0
SP3
600
Zero Span
Zero Span
330
330
300
300
270
240
210
180
150
120
270
F
L
U
E
240
210
180
G
A
S
150
120
90
90
°C
60
30
SP1 SP2
60
30
SP3 SP4
2
5
8.8.8.8.
4
3
6
7
8
9
Style D
Style A
10
KV DC
4
SP2
SP3 SP4
Style C
scale left
SP1
SP1
Hi
H
E
A
D
SP1 SP2
Style C
scale right
SP
20
SP3 SP4
Lo
SP1 SP2 SP3 SP4
SP1 SP2 SP3 SP4
Style C
scale right
10
90
10
8.8.8.8.
0
55
L
E
V
E
L
50
Out
Zero Span
Hi
100
O
I
L
80
10
0
Lo
100
SP
80
Out
8.8.8.8.
800
Style C
Scale below
Zero
SP2
Span
AC AMPS
0
SP3
200
400
600
800
Lo Out
Style C
Scale below
Hi
SP4
°
SP1
0
25
50
75
100
SP2
SP3
Zero
Span
Hi
MOTOR LOAD
SP4
Output
Style C
Scale above
SP1
SP2
Zero
40
45
50
55
60
65
70
75
Lo
SP3
Lo
Out
Hi
Hz
SP4
SP1
5
10
SP2
20
25
15
30
45
Zero
Span
POUNDS
SP3
SP4
15
Style C
Scale above
Span
80
Zero
60
75
Style D
SP1
SP2
0
1
2
Span
3
4
5
SP3
SP4
0
1
2
Zero
Span
Zero
TONS
3
4
5
Style D
Span
8
for Monitoring and Control
Style A Bar & Digital
Style A combines a precision 4 digit LED display with a 101
segment bargraph. The bar can be set to display any part of
the digital range, from a minimum of 100 counts to the full
12000 A/D counts. Higher bar resolution is useful for applications where the normal operating range is only a portion of the
full scale input.
Style A offers 4 levels of display brightness, which can be set
from the front panel. A rear panel jumper dims the display by
half. A programmable scale factor (PSF) option is available for
some input types. With PSF, the input can be rescaled digitally, without applying an external signal. This eliminates the
need for calibrated sources. In addition to the general features, setpoint 1 includes delay-on-make and delay-on-break.
Each can be independently set from 1 to 9999 seconds.
Style C Single Bar
Style C offers a 101 segment red, green or tricolor bar, without
digital display. The bar can be set to grow from the bottom or
the center of the scale. The center mode is normally used for
center zero but can also show deviation around a half-scale
value. For top zero indication where the bar grows downward
as the signal increases, order an inverted faceplate and install
the meter with the setpoint buttons at the top.
The dual bar style can be used with a single channel input
module for independent setpoint display. The left bar displays
the process signal; the right bar displays up to 4 setpoints. The
right bar can also be used for a min/max display. In this mode
the left bar displays the process signal; the right bar illuminates
between the minimum and maximum signal values encountered since the last operator reset (simultaneous press of SP3
& SP4). Four setpoints are also available in this mode.
The display mode is selected by internal jumpers. Relay
mode, center zero and hysteresis are also jumper selected.
Operation is similar to Style C. Left and right bars can be independently set for center zero mode. SP1 & SP2 on the left bar
can be used for relay hysteresis.
Relay mode, center zero and hysteresis are selected by moveable internal jumpers. Initial setup of the bar range uses the
front panel zero and span buttons. Once set, further changes
can be inhibited by installing a rear panel jumper.
The optional analog output is tied to the channel 1 input signal.
Output zero and span are adjusted from the front panel.
Specifications
Analog Output:
mA out
Volts out
Power Supply:
Input Accuracy:
DCV, DCA
ACV, ACA
Temperature
Direct Pressure
Frequency/RPM
Strain/Load
Process
Resistance/Pots
Input Characteristics:
DCmV, DCV
ACmV, ACV
DCmA, ACmA
DCA, ACA
Line frequency
A/D Converter:
Warm-up time:
Conversion Rate:
Bargraph Display:
Bar Viewing Angle:
Digital Display:
Decimal Position:
Positive Overrange:
Negative Overrange:
Relay Output:
Form A (SPST)
Form C (SPDT)
9
Style D Dual Bar
The dual bar configuration (Style D) can display two process
variables, using the Dual Process input card (PE). Any combination of red and green bars can be specified. Two setpoints
are available for each channel. The dual input card may also
be used to display one process variable on the left bar and two
tracking setpoints on the right bar. In this mode, setpoint 1 is
determined by the channel 2 input signal. Setpoint 2 is offset
from setpoint 1 by a fixed (user selectable) amount.
±(0.06% of reading + 2 counts)
±(0.07% of reading + 5 counts)
±(0.1% of reading + 3 counts)
±(1.0% of range + 3 counts)
±(0.06% of reading + 2 counts)
±(0.08% of reading + 3 counts)
±(0.06% of reading + 2 counts)
±(0.06% of reading + 2 counts)
>500kΩ input resistance
>1MΩ input resistance
2V burden at full scale
<130mV burden at full scale
4MΩ input resistance
14 bit single slope, 2V full scale
2 minutes
10/second (typical)
4", 101 segment
±40° red or green, ±35° orange
4 digit LED, 0.31" (7.9mm) height
Range -1999 to 9999 counts
Front panel selectable
n.nnn, nn.nn, nnn.n, nnnn.
Bargraph & top segments of digital
display flash
First segment of bargraph & bottom
segments of digital display flash.
5A@250VAC, 5A@30VDC (resistive)
10A@240VAC, 8A@24VDC (resistive)
Isolated 16 bit, user scalable
4-20mA, 500Ω maximum loop resistance
0-10VDC, 500Ω minimum load resistance
85-265 VAC / 95-370 VDC @ 5W (11VA)
max., orange polarized connector;
18-48 VAC / 10-72 VDC @ 5W (11VA)
max., black polarized connector
Sensor Excitation:
24VDC @50mA (2-wire loop power)
10VDC @120mA (bridge excitation)
Operating Temperature:0 to 60°C, 95% RH (non-condensing)
Storage Temperature: -20°C to 70°C
EMI:
EN61326: 1998
Isolation (50/60Hz):
2500VAC
between input, power & relays;
between analog out, power & relays;
between relays & function lines
500VAC
between input & analog out;
between analog out & function lines
Mounting Dimensions: DIN cutout: 33 x 138mm, depth 148mm
6" cutout: 1.77" x 5.695", depth 6.41"
Weight:
DIN case: 10 ounces (0.3kg)
6" case: 16 ounces (0.5kg)
Connectors:
Plug-in, screw terminal mating connectors
included, accept #14-24 AWG wire;
fixed screw terminals on 1A & 5A inputs;
2.5mm tubing to direct pressure modules
Warranty:
Two years, material and workmanship
WESCHLER INSTRUMENTS
70 Years of Power and Process Measurements
Phone: (440) 238-2550 Email: sales@weschler.com
Quatro Bargraph Configuration Guide
Select desired code for each category to build the 15 digit part number
PART NUMBER
Also specify input range, faceplate scale and
faceplate legend when ordering.
Certain option combinations not available on all models.
TYPE
L
4 digit, 9/64 DIN Case
M
4 digit, 6" Edgewise Case
OPTIONS
P
Programmable scale factor (Style A, w/o freq or temp)
C
NEMA4 cover (Type L only)
M
Metal shell (Type L only)
S
Special
X
None
STYLE
A
Digital & bar
C
Single bar (no digtial)
D
Dual bar (no digital)
RELAYS
** shared common
for Type L:
between A & C
1
One 10A Form C
2
Two 10A Form C
4
Two 10A Form C & Two 5A Form A **
S
Special
X
None
ORIENTATION
V
Vertical
H
Horizontal
BAR
R
G
T
COLOR
Red
Green
Tricolor (Style A or C only)
for Type M:
A
One 10 Amp Form C
B
Two 10 Amp Form C
H
Two 5 Amp Form A
K
Four 5 Amp Form A
E
Two 10 Amp Form C & Two 5 Amp Form A **
M
Two 400V DC Solid State Relays (SSR) 210mA
P
Four 400V DC Solid State Relays (SSR) 210mA
R
Two 400V AC/DC Solid State Relays (SSR) 140mA
T
Four 400V AC/DC Solid State Relays (SSR) 140mA
S
Special
X
None
DIGITAL DISPLAY COLOR
R
Red
G
Green
X
None (Style C or D)
BAR
C
A
E
X
& SCALE POSITION
Center bar (Style A)
Center bar, scale Left or Above (Style C)
Center bar, scale Rigth or Below (Style C)
Dual bar (Style D)
RETRANSMIT
A
Isolated 16 Bit Current Output, 4-20mA
V
Isolated 16 Bit Voltage Output, 0-10VDC
S
Special
X
None
SECOND BAR COLOR (right or bottom bar)
R
Red (Style D only)
G
Green (Style D only)
X
None
INPUT
AK
AC millivolt, scaled RMS, 100mV
AB
AC Volts, scaled RMS, 200mV/2V/20V
AA
AC Volts, scaled RMS, 200/600V
AM AC millivolt, True RMS, 100mV
AG
AC Volts, True RMS, 200mV/2V/20V
AF
AC Volts, True RMS, 200/600V
AC
AC mA, scaled RMS, 2/20/200mA
AD
AC Amps, scaled RMS, 1A
AE
AC Amps, scaled RMS, 5A
AH
AC mA, True RMS, 2/20/200mA
AJ
AC Amps, True RMS, 1A
AL
AC Amps, True RMS, 5A
DB
DC millivolt, 20/50/100/200mV w/ 24V Excitation
DA
DC Volts, 2/20/200V/Custom w/ 24V Excitation
DE
DC Volts, 2/20/200V/Custom w/ Offset and 24V Excitation
DC
DC milliamp, 2/20/200mA w/ 24V Excitation
DF
DC milliamp, 2/20/200mA w/ Offset and 24V Excitation
DG DC Amps, 1A
DD
DC Amps, 5A
E1
Line Frequency, 60-500VAC, 199.9Hz (Style C or D)
F2
Frequency, 99.99/999.9/9999Hz, 50mV-30V, w/ 24V Exc. (Style A)
F3
Frequency, 99.99/999.9/9999Hz, 60-500VAC (Style A only)
GB
Direct Pressure, 1 psi differential/gage (clean, dry gas)
GD Direct Pressure, 5 psi differential/gage (clean, dry gas)
GE
Direct Pressure, 15 psi absolute (clean, dry gas)
GF
Direct Pressure, 15 psi differential/gage (clean, dry gas)
GG Direct Pressure, 30 psi absolute (clean, dry gas)
GH Direct Pressure, 30 psi differential/gage (clean, dry gas)
POWER
1
85-265VAC/95-370VDC
2
15-48VAC/10-72VDC
S
Special
GJ
GK
M1
PC
PD
PE
RD
RB
RC
SA
SB
SD
SC
SF
SE
TA
TB
TC
TH
TD
TF
TE
TG
W1
W2
W3
PT
XS
Direct Pressure, 100 psi absolute (clean, dry gas)
Direct Pressure, 100 psi differential/gage (clean, dry gas)
RPM, 99.99/999.9/9999Hz, 50mV-30V, w/ 24V Excitation (Style A)
Process Input, 1-5V DC w/ Offset, 24V Excitation
Universal Process, 2/5/10/20/200V/2mA/20mA/Custom
Dual Process, 2/5/10/20/200V/2mA/20mA/Custom (Style D)
Resistance, 2kΩ, 2/3/4-wire
3-Wire Potentiometer, 1kΩ min
Linear Potentiometer, 3-wire, 1kΩ min
Strain Gage, 5/10VDC Excitation, 2/20 mV/ V, 4/6-wire
Pressure, 5/10VDC Excitation, 2/20 mV/ V, 4/6-wire
Pressure/Load Cell, 5/10V Excitation, 2/20 mV/ V, 4-wire
Pressure, External 5/10V Excitation, 2/20 mV/ V, 4/6-wire
Pressure, Ext. 5/10V Exc., 2/20 mV/V, 4/6-wire, High Impedance
Pressure/Load Cell, Ext. 5/10V Excitation, 2/20 mV/ V, 4-wire
RTD, 100Ω Pt. 2/3/4-wire (-200 to 800°C)
RTD, 100Ω Pt. 2/3/4-wire (-200 to 1470°F)
RTD, 100Ω Pt. 2/3/4-wire (-190.0 to 199.0°F)
RTD, 100Ω Pt. 2/3/4-wire (-199.0 to 199.0°C)
Style C or D
Thermocouple, J Type (0-1400°F)
Thermocouple, J Type (0-760°C)
Thermocouple, K Type (0-1999°F)
Thermocouple, K Type (0-1260°C)
Thermocouple, J,K,R,T; Selectable °C/°F, 1°/0.1°
Style A
RTD, 100Ω Pt Selectable 3/4-wire, °C/°F, 1°/0.1°, 385/392
RTD, 1000Ω Pt Selectable 3/4-wire, °C/°F, 1°/0.1°, 385/392
Prototype Board for Custom Design
Special
WD-07 6/10
WESCHLER INSTRUMENTS
16900 FOLTZ PARKWAY
CLEVELAND, OH 44149 USA
Phone: (440) 238-2550 Fax: (440) 238-0660
www.weschler.com
Email: sales@weschler.com
10
BG TC Series
TriColor BarGraphs
9 0.0 0
TM
100
c
o
80
BG-252TC
60
40
20
Weschler
0
I 0 5.67
0
500
100
The Weschler Instruments BG "TC", TriColor BarGraphs provide
the quickest way to spot problems in your process control
panels with bright changing colors. Quick identification of
trouble conditions can help prevent equipment damage or
production loss, thus reducing down time and maintenance
costs, and improving operational safety. Each 40 segment LED
(Light Emitting Diode) of the BG TC family has the ability to
illuminate as Red (Danger), Yellow (Caution), or Green (Safe
condition). The bar color identification can be easily changed by
the user, from the front pushbuttons or through a tamper safe
mode. The fully programmable Weschler BG TC BarGraphTM fits
the widest range of inputs and retrofits
most edgewise switchboard and panel
meters. Weschler's instruments satisfy
2 0 0 0 .2
PSIG
the high quality standards set forth by
the utility, OEM, and process control
1500
1000
2000
industries.
BH-252TC
FEATURES
80
P
E
R
C
E
N
T
40
20
Weschler
Large, high resolution
40 segment LED bar array
60
I 2 6 .8 9
150
0
BV-5ATC
A
C
120
V
O
L
T
S
90
60
30
BD-101TC
5 digit display with resolution
to 0.01%
Field programmable functions
Zero and full scale point location
Setpoint type (Hi or Low)
Hysteresis & latching
Setpoint time delay
16 step dimming
Digital display for engineering
units
Enable/disable front buttons
I.D. selection for communication
Bar form
Peak / Valley enable
Color zones
Over-range /Under-range flashing
Lamp test
Peak and Valley hold
Trend indication for signal
direction
Communication
RS232/485, SCADA, DCS
Analog retransmit
4-20, 0-1mA DC
1-5, 0-1, 0-5V DC
Retrofit sizes for:
GE/Yokogawa 180,
Bailey draft gauges,
Crompton 128,
Dixson SA/BB 101 (all models),
Dixson BJ101, K051
Hays Republic 216, 3600/V5A,
Foxboro 65PP,
Sigma/International Instruments 1151
0
WESCHLER
INSTRUMENTS
DIVISION OF HUGHES CORPORATION
16900 FOLTZ PARKWAY - CLEVELAND, OH 44149
Phone: (440) 238-2550 - Fax: (440) 238-0660
www.weschler.com e-mail: sales@weschler.com
11
Form-C relay outputs
Normally Open
5A, resistive @ 250V AC
5A, resistive @ 28V DC
Normally Closed
3A, resistive @ 250V AC
2A, resistive @ 28V DC
Versatile selection of inputs
DC
Up to 5A & 250V
AC
Up to 5A & 250V
Thermocouple J, K, T
RTD
10W Cu or 100W Pt
Serial
ASCII
Frequency
Line or mag pickup
Process Control V, mA
SPECIFICATIONS
Bar Display
40 segment LED
2.5% full scale resolution
Sensor Power
24V DC excitation power @ 90mA
Height
BG252, BH252, BV5A 4" (10.12mm)
BD101
10” (25.4mm)
Retransmit Signals
4-20mA DC
0-1mA DC
1-5V DC
0-5V DC
Digital Display
5 digit LED
-9999 to 99999
Resolution
0.01% full scale
Linearity
±1 count
Height
BG252, BH252, BV5A 0.3" (7.62mm)
BD101
0.56” (14.2mm)
Response Time
DC
<600msec full scale
AC
<800msec full scale
Temperature
Operation
00 to 500C, <95% RH
(Non-condensing)
Storage
-400 to 850C
Input Isolation
AC
Transformer isolated
(>50mA, 1V)
DC
Differential
Setpoints
Up to 4 SPDT relays with form C
contacts available
Hysteresis 0.00-10.00% FS or latching
Time delay 0-10 sec.
Input Sensitivities [ANSI C39.1]
DC:
Current
50 microamp - 5A
Voltage
50mV - 250V
Accuracy 0.04% of full scale
± 1 count
AC RMS:
Current
Voltage
Accuracy
Communication
RS232
RS485 (2-wire)
1mA - 5A
50mV - 250V
0.1% of full scale ± 1 count
Temperature:
Power
120/240V AC ±10%
50/60/400Hz (13VA)
12V DC ±10% (8W)
24V DC ±10% (8W)
28V DC ±10% (8W)
48V DC ±10% (8W)
250V DC ±10% (8W)
110-250V DC (8W)/85-264V AC,
50-440 Hz (13VA)
Input Impedance
2Mohm @ >4V DC
30kohm @ 120V AC P.T.
0.1ohm @ 5A AC C.T.
250ohm @ 4-20mA DC
100ohm @ 10-50mA DC
Thermocouple 0C
Type J
-210 to 795
Type K
-270 to 851
Type T
-270 to 400
Accuracy
Linearity
F
-346 to 1463
-454 to 1563
-454 to 752
0.1% of full scale ± 1 count
50 point, 0.1%
0
0
RTD
C
F
100W Pt
-260 to 700 -436 to 1292
Alpha 0.00385 & 0C standard
Other Alpha ratings available
10W Cu
-100 to 260
-148 to 500
Accuracy
Input Overload Ratings
200%, not to exceed 10A
200%, not to exceed 300V
0
0.2% of full scale ± 1 count
Frequency:
50Hz to 20kHz at 5 to 250V p-p
Accuracy 0.1% of full scale ± 1 count
Line Frequency (55 to 65 Hz):
Accuracy 0.01% of full scale
± 1 count
ARTWORK GUIDELINES
HORIZONTAL
VERTICAL
12 CHAR.
MULTIPLIER:
4 CHAR.
IF REQUIRED
X
*
*
Weschler
MULTIPLIER:
4 CHAR.
IF REQUIRED
17 CHAR.
*
X
17 CHAR.
range
* Numerical
MAX. 4 Digits
**Non-digital units will have a
centered bar display.
*
12
ORDERING GUIDE
SAMPLE PART NUMBER
2
B Y 4
(SEE BOTTOM OF PAGE FOR EXAMPLE)
P A A M 1
F A
P T
X T
PART NUMBER
TYPE:
2 =
5 =
A =
K =
BG252
BH252
BV5A
BD101
6" Vertical BarGraph
6" Horizontal BarGraph
7.5" Vertical BarGraph
10” Vertical BarGraph
BAR COLOR:
T = TriColor
BAR ZERO POINT:
B = Zero at Bottom
H = Zero at 50% mid scale
F = Zero at F.S.
S = Special /off scale zero
DIGITAL DISPLAY:
R = Red
Y = Yellow
G = Green
S = Special
(Barrier terminal strip connections included)
F
Q
T
=
=
=
R
S
U
=
=
=
Line Frequency
MAG Pickup Frequency
Thermocouple
Specify J, K, T
RTD Specify
100 Ohm Pt or
10 Ohm Cu
Special
Serial ASCII (requires com. type A or C in Communication options)
T
X
=
=
Trend Indicator
NA
P
X
=
=
Peak/Valley Hold
NA
POWER:
1 = 120V AC, 50/60 Hz
2 = 240V AC, 50/60 Hz
4 = 12V DC
6 = 250V DC
7 = 24V DC
8 = 28V DC
9 = 48V DC
U = 110-250V DC / 85-264V AC, 50-440 Hz
INPUT TYPE:
A = DC Volts
B = DC Amps
P = 4-20mA DC (input level AK)
N = 1-5V DC ( input level AV)
M = 10-50mA DC (input level BA)
C = AC Volts RMS
AC Amps RMS
Conformal Coating
Terminal Strip Connector
Custom Artwork
None
Special
RETRANSMIT:
C = 1-5V DC (or 0-5V on request)
D = 0-1V DC
F = 4-20mA DC, 700 Ohm max.
G = 0-1mA DC
W = Excitation Power 24 VDC @ 90mA
S = Special
X = None
SETPOINT HYSTERESIS.
P = Programmable 0-10% or latching
X = Not required
S = Special
=
=
=
=
=
=
COMMUNICATION:
A = RS232
C = RS485 Bi-directional
X = None
SETPOINT RELAYS:
4 = 4 relays
X = No relays
S = Special
D
K
T
A
X
S
(Barrier terminal strip connections included)
13
INPUT LEVEL:
See input Level Matrix Guide
EXAMPLE:
2
B Y 4
P A A M 1
F A P T
X T
(2) BG-252, (B) zero at bottom, (Y) Yellow, (4) Four relays, (P) Programmable
setpoint hysteresis, (A) DC volts input, (AM) full scale is 0.05 volts, (1)120 VAC
50/60 Hz power, (F) 4-20 mA DC isolated retransmit, (A) RS232 communication,
(P) peak/valley hold, (T) trend indicator, (X) No option, (T) TriColor
DIMENSIONS
BG-252TC and BH-252TC
6.410"
162.814 mm
1.700"
43.18 mm
2.166"
55.016 mm
A
Number of
Instruments
0.540"
13.716 mm
FRONT VIEW
1
2
3
4
.
.
.
8
5.695"
144.653 mm
5.675"
144.145 mm
6.035"
153.289 mm
SIDE VIEW
PANEL CUTOUT
BACK VIEW
A
Inches
(Millimeters)
1.770
3.510
5.250
6.990
.........
.........
.........
13.95
(45)
(89)
(133)
(178)
........
........
........
(354)
BD-101TC
3.14"
79.76 mm
7.160"
181.86 mm
12.9"
237.66 mm
2.99"
2.950"
76mm
74.93 mm
2.840"
72.14 mm
SIDE VIEW
10.5"
266.70 mm
12.3"
312.42 mm
5.560"
141.22 mm
FRONT VIEW
2.99"
76mm
BACK VIEW
OPTIONAL
MOUNTING
PANEL CUTOUT
BV-5ATC
1.75"
44.450 mm
6.50"
165.1 mm
7.6"
193.040 mm
1.75"
44.45 mm
SIDE VIEW
Number of
Instruments
7.188"
182.575 mm
5.72"
145.3 mm
FRONT VIEW
A
BACK VIEW
PANEL CUTOUT
1
2
3
4
.
.
8
A
Inches
1.770
3.510
5.250
6.990
.
.
13.95
(Millimeters)
(45)
(89)
(133)
(178)
.
.
(354)
TERMINAL CONNECTIONS
2
PWR
1
WHEN
EXCITATION
POWER IS
ORDERED
THIS
PINOUT
APPLIES
1
INPUT
VOLTAGE / CURRENT
(1) Return Side (–) (2) Hot Side (+)
2
3
4
5
6
2
1
4
1 2
3
2
(2) – Sense
(4) + Source
FREQUENCY/MAGNETIC PICKUP
(1) Lead 1 (–)
(2) Lead 2 (+)
THERMOCOUPLE
Provided w / flying lead and plug.
4
3
COMM.
1
RTD/
THERMO
24 VDC
3
2
FREQ
10 11 12
POWER
1
9
HOT COM
8
Isolated
Re Tx
7
TYPE "C" RELAYS
RTD
(1) – Source
(3) + Sense
Re Tx
1
2
Voltage/Current
INPUT
Options and features vary by model. Contact
factory for details and latest specifications.
AC LINE FREQUENCY
(1) Hot Side (+)
(2) Return Side (–)
AC Inputs have 6/32" barrier lug
connections.
POWER
(1) Hot Side (+)
(2) Return Side (–)
COMMUNICATIONS
(1) Transmit (2) Common (3) Receive
EXCITATION POWER
(1) VAC (hot side)
(2) VAC (return)
(3) 24 VDC +
(4) 24 VDC -
RELAY CONTACTS*
(1) AL 1 N.O.
(2) AL 1 C.
(3) AL 1 N.C.
(4) AL 2 N.O.
(5) AL 2 C.
(6) AL 2 N.C.
(7) AL 3 N.O.
(8) AL 3 C.
(9) AL 3 N.C.
(10) AL 4 N.O.
(11) AL 4 C.
(12) AL 4 N.C.
*
N.O.= Normally Open
N.C.= Normally Closed
C.= Common
9/15/12
WESCHLER
INSTRUMENTS
DIVISION OF HUGHES CORPORATION
16900 FOLTZ PARKWAY - CLEVELAND, OH 44149
Phone: (440) 238-2550 - Fax: (440) 238-0660
www.weschler.com e-mail: sales@weschler.com
14
BG Series Edgewise
Single BarGraphs
9 3 .4 2
150
A
C
120
V
O
L
T
S
90
60
PC-101
30
Weschler
I 0 0.4 8
Weschler
30
60
90
120
The Weschler BG Series Edgewise BarGraphs include several 6"
size and DIN-size instruments for horizontal and vertical
orientations. Bars are available in red, green or amber for easy
viewing. Weschler BarGraphs combine the visual indication of
an analog gauge with the precision of a digital instrument.
Digital displays are available with either 3½ or 4½ digit
resolution. The 101 segment bar gives the operator a quick
view of the measured signal and the control setpoints. Separate
setpoint LEDs provide an added visual indication of
control/alarm status. Signal direction is shown by two trend
arrows. Setpoints and other parameters are easily entered
from the front panel.
0
0
150
AC V O LTS
PH-101
Weschler BarGraph instruments can be configured for a wide
range of input signals. Retrofit sizes are available for most
panel and switchboard meters in use today. These instruments
satisfy the high quality standards of the utility, OEM and
process control industries.
68.0 5
100
P
E
R
C
E
N
T
FEATURES
75
50
BG-252
25
Weschler
PERCENT
0
25
50
0
60.08
75
100
BH-252
Weschler
8 2.3
100
100
80
80
60
40
P
S
I
G
20
P
E
R
C
E
N
T
Communication
RS-232, RS-485, SCADA, DCS
Programmable functions
Zero point location
Setpoint location
Hysteresis (setpoint, trend)
Span and zero
Digital display for engineering units
Enable/disable front buttons
I.D. selection for communication
Analog retransmit
4-20, 10-50, 0-1mA DC
1-5, 0-1, 0-5V DC
Form-C relay outputs
Normally Open
5A, resistive @ 250V AC
5A, resistive @ 28V DC
Normally Closed
3A, resistive @ 250V AC
2A, resistive @ 28V DC
60
40
Peak and Valley hold
20
0
Trend indication for signal
direction
Weschler
0
15
BV-5A
Contact Weschler for 10CFR50
Nuclear Qualified models
High resolution 101 segment
LED bar array
68.05
BW-1316
TM
WESCHLER
INSTRUMENTS
DIVISION OF HUGHES CORPORATION
Retrofit sizes for:
GE/Yokogawa 180,
Crompton 128,
Dixson SA/BB 101 (all models),
Dixson BJ101,
Hays Republic 3600/V5A,
Foxboro 65PP,
Weston 1316,
Sigma/International Instruments
1151
Versatile selection of inputs
DC
AC
Thermocouple
RTD
Serial
Frequency
Process Control
Up to 5A & 250V
Up to 5A & 250V
J, K, T
10W Cu or 100W Pt
ASCII
Line or mag pickup
mA, V
16900 FOLTZ PARKWAY - CLEVELAND, OH 44149
Phone: (440) 238-2550 - Fax: (440) 238-0660
www.weschler.com e-mail: sales@weschler.com
SPECIFICATIONS
Bar Display
101 segment LED
4.0” display
1% full scale resolution
Sensor Power
24V DC excitation power @ 90mA
Digital Display
3½ or 4½ digit LED
Height
0.3” (7.6mm)
Resolution
3½ digit
0.1% full scale
4½ digit
0.01% full scale
Linearity
±1 count
Response Time
DC
<600msec full scale
AC
<800msec full scale
Temperature
Operation
00 to 500C, <95% RH
(non-condensing)
Storage
-400 to 850C
Input Isolation
AC
Transformer isolated
(>50mA, 1V)
DC
Differential
Retransmit Signals
4-20mA DC
0-1mA DC
10-50mA DC
1-5V DC
Input Sensitivities [ANSI C39.1]
DC:
Current
50 microamp - 5A
Voltage
50mV - 250V
Accuracy
0.04% of full scale
± 1 count
AC RMS:
Current
Voltage
Accuracy
Communication
RS232
RS485
1mA - 5A
50mV - 250V
0.1% of full scale ± 1 count
Temperature:
Power
120/240V AC ±15%
50/60/400 Hz (6 VA)
8-30V AC (3VA max)
4.5-9V DC (600mA max)
9-36V DC (300mA max)
18-75V DC (150mA max)
110-300V DC (35mA max) / 85-264V
AC (47-440Hz, 7VA max)
Input Impedance
2Mohm @ >4V DC
30kohm @ 120V AC P.T.
0.1ohm @ 5A AC C.T.
250ohm @ 4-20mA DC
100ohm @ 10-50mA DC
Thermocouple 0C
Type J
-210 to 795
Type K
-270 to 851
Type T
-270 to 400
Accuracy
Linearity
0.1% of full scale ± 1 count
50 point, 0.1%
0
0
RTD
C
F
100W Pt
-260 to 700 -436 to 1292
Alpha 0.00385 & 0C standard
Other Alpha ratings available
10W Cu
-100 to 260
-148 to 500
Accuracy
Setpoints
Up to 4 SPDT relays with form C
contacts available. Hysteresis values of
0.5, 1.0, 2.0% of full scale, selectable Input Overload Ratings
200%, not to exceed 10A
(other values are available).
200%, not to exceed 300V
Optional: Field programmable 0-10%
or latching
0
F
-346 to 1463
-454 to 1563
-454 to 752
0.2% of full scale ± 1 count
Frequency:
50Hz to 20kHz at 5 to 250V p-p
Accuracy 0.1% of full scale ± 1 count
Line Frequency (55 to 65 Hz):
Accuracy 0.01% of full scale
± 1 count
ARTWORK GUIDELINES
BH-252 6" HORIZONTAL
PH-101 DIN HORIZONTAL
BG-252 6" VERTICAL
PC-101 DIN VERTICAL
12 CHAR.
X
*
*
Weschler
MULTIPLIER:
4 CHAR.
IF REQUIRED
MULTIPLIER:
4 CHAR.
IF REQUIRED
17 CHAR.
*
X
17 CHAR.
range
* Numerical
MAX. 4 Digits
**Non-digital units will have a
centered bar display.
*
16
ORDERING GUIDE
SAMPLE PART NUMBER
2
B 3
N 1
(SEE BOTTOM OF PAGE FOR EXAMPLE)
A A M 1
F A
P T
A X
PART NUMBER
TYPE:
2 = BG252
5 = BH252
C = PC101
H = PH101
7 = BW1316
A = BV5A
LED COLOR:
G = Green only
A = Amber only
X = Red only
6" Vertical BarGraph
6" Horizontal BarGraph
DIN Size Vertical BarGraph
DIN Size Horizontal BarGraph
6" Vertical BarGraph
7.5" Vertical BarGraph
BAR ZERO POINT:
B = Zero at Bottom
H = Zero at 50% mid scale
F = Zero at F.S.
S = Special or off scale zero
DIGITAL DISLAY:
3 = 3-1/2 digit Display
4 = 4-1/2 digit Disply
X = None
S = Special
K
T
A
X
S
=
=
=
=
=
Confomal Coating
Terminal Strip Connector
Custom Artwork
NA
Special
T
X
=
=
Trend Indicator
NA
P
X
=
=
Peak/Valley Hold
NA
COMMUNICATION:
A = RS232
C = RS485 Bi-directional
X = None
SETPOINTS:
N = Hi/Lo
H = Hi/Hi-Hi
L = Lo/Lo-Lo
4 = Hi-Hi/Hi/Lo/Lo-Lo
Y = Fail Safe Hi/Hi-Hi
Z = Fail Safe Hi/Lo
X = None
RETRANSMIT:
A = 4-20mA DC into 250 ohms
B = 0-1mA DC into 1000 ohms
C = 1-5V DC
D = 0-1V DC
F = 4-20mA DC, 700 ohms max (isolated source*)
G = 0-1mA (isolated source*)
H = 10-50mA DC (isolated source*)
W = Excitation Power 24 VDC @ 90mA
X = None
*isolated outputs must have AC power
SETPOINT HYSTERESIS:
1 = 1% of F.S. (standard)
2 = 2% of F.S.
5 = 0.5% of F.S.
X = Not required
S = Special
POWER:
1 = 120V AC
2 = 240V AC
INPUT TYPE:
A = DC Volts
B = DC Amps
P = 4-20mA DC (input level AK)
N =
1-5V DC ( input level AV)
M = 10-50mA DC (input level BA)
C = AC Volts RMS
A
B
C
D
E
=
=
=
=
=
8-30V AC
9-36V DC
18-75V DC
110-300V DC / 85-264V AC
4.5-9VDC
(Barrier terminal strip connections included)
D
=
AC Amps RMS
F
Q
T
=
=
=
R
S
U
=
=
=
Line Frequency
MAG Pickup Frequency
Thermocouple
Specify J, K, T
RTD: Specify
100 Ohm Pt
10 Ohm Cu
Special
Serial ASCII (requires com type A, B or C in Communication options)
(Barrier terminal strip connections included)
17
INPUT LEVEL:
See input Level Matrix Guide
EXAMPLE:
2
B 3
N 1
A A M 1
F A P T
A X
(4) BG-252, (B) zero at bottom, (3) 3 1/2 digit, (N) Hi/Lo setpoint, (1) 1% of F.S.
setpoint hysteresis, (A) DC volts input, (A-M) full scale is 0.05 volts, (1)120 VAC 50/60
Hz power, (F) 4/20 mADC isolated retransmit, (A) RS232 communication, (P)
peak/valley hold, (T) trend indicator, (A) custom artwork, (X) red led color
DIMENSIONS
BG-252 and BH-252
6.410"
162.814 mm
1.700"
43.18 mm
2.166"
55.016 mm
A
Number of
Instruments
0.540"
13.716 mm
FRONT VIEW
SIDE VIEW
2.835"
72.009 mm
6.555"
166.497 mm
0.314"
7.976 mm
FRONT VIEW
SIDE VIEW
BW-1316
2.13"
54.102 mm
4.90"
124.46 mm
FRONT VIEW
BV5A
BACK VIEW
1.855"
47.117 mm
MAX.
SIDE VIEW
1.75"
44.450 mm
A
BACK VIEW
1.875
3.985
6.115
8.245
Number of
Instruments
A
Inches
7.188"
182.575 mm
BACK VIEW
SIDE VIEW
TERMINAL CONNECTIONS
2
PWR
1
INPUT
VOLTAGE / CURRENT
(1) Return Side (–) (2) Hot Side (+)
1
2
1
2
3
4
1.813
3.563
5.313
7.000
(Millimeters)
(46.050)
(90.500)
(134.950)
(177.800)
PANEL CUTOUT
AC LINE FREQUENCY
(1) Hot Side (+)
(2) Return Side (–)
AC Inputs have 6/32" barrier lug
connections.
POWER
(1) Hot Side (+)
(2) Return Side (–)
RELAY CONTACTS*
(1) Hi/Hi N.O. (2) Hi/Hi C.
(3) Hi/Hi N.C. (4) Hi N.O.
(5) Hi C.
(6) Hi N.C.
(7) Lo N.O.
(8) Lo C.
(9) Lo N.C.
(10) Lo/Lo N.O.
(11) Lo/Lo C. (12) Lo/Lo N.C.
7
2
COM.
1
MAGNETIC PICKUP
(2) Lead 1 (–)
(3) Lead 2 (+)
3
24
2
4
1
2
1
Re Tx
2
INPUT
RTD/MAG
1 2 3 4
THERMO
VDC
11 12
FREQ
1
3
POWER
2
10
HOT
1
9
COMM.
8
RELAYS
4 "C"
5 6
TYPE
3
(2) – Sense
(4) + Source
(47.625)
(102.219)
(155.321)
(209.423)
A
5.72"
145.3 mm
RTD
(1) – Source
(3) + Sense
1
2
3
4
PANEL CUTOUT
1.75"
44.450 mm
7.6"
193.040 mm
WHEN
EXCITATION
POWER IS
ORDERED
THIS
PINOUT
APPLIES
(Millimeters)
5.500"
139.7 mm
6.50"
165.1 mm
FRONT VIEW
A
Inches
PANEL CUTOUT
5.495"
139.573 mm
MAX.
6.00"
152.400 mm
Number of
Instruments
5.350"
135.890 mm
6.60"
167.64 mm
0.44"
MAX.
11.176 mm
1.50"
38.1 mm
(44.958)
(89.154)
(133.350)
(177.546)
2.600"
66.040 mm
5.340"
135.636 mm
5.699"
144.755 mm
1.770
3.510
5.250
6.990
PANEL CUTOUT
BACK VIEW
PC-101 and PH-101
(Millimeters)
1
2
3
4
5.695"
144.653 mm
5.675"
144.145 mm
6.035"
153.289 mm
A
Inches
Options and features vary by model. Contact
factory for details and latest specifications.
THERMOCOUPLE
Provided w / flying lead and plug.
COMMUNICATIONS
(1) Transmit (2) Common (3) Receive
EXCITATION POWER
(1) VAC (hot side)
(2) VAC (common)
(3) 24 VDC +
(4) 24 VDC –
WESCHLER
INSTRUMENTS
DIVISION OF HUGHES CORPORATION
*
N.O.= Normally Open
N.C.= Normally Closed
C.= Common
16900 FOLTZ PARKWAY - CLEVELAND, OH 44149
Phone: (440) 238-2550 - Fax: (440) 238-0660
www.weschler.com e-mail: sales@weschler.com
10/1/12
18
BG TC Series Circular
TriColor BarGraphs
0
-20
+20
-40
+40
MEGAVARS
-60
- 7 202
.
-80
-100
+60
+80
+100
BG-261TC
Center Zero
80
40
120
OIL
TEMPERATURE
I68.45
160
200
0
TM
The Weschler Instruments BG "TC", TriColor BarGraphs provide
the quickest way to spot problems in your process control panels
with bright changing colors. Each 50 segment LED (Light emitting
diode) of the BG TC family has the ability to illuminate as Red
(Danger), Yellow (Caution), or Green (Safe condition). The bar
color identification can be changed by the user, from the front
pushbuttons or through a tamper safe mode.
The Weschler BG Series Circular BarGraphs consist of model 241,
261 and 281. The panel footprint, shape and mounting meets
direct retrofit applications for 4 1/2 " and 8 3/4 " switchboard meters,
as well as 8" pressure gauge meters. The electronics housing
remains the same. Quick identification of trouble conditions can
help prevent equipment damage or production loss, thus
reducing down time and maintenance costs, and improving
operational safety. The fully programmable Weschler BG TC
BarGraphTM fits the widest range of inputs and retrofits most
edgewise switchboard and panel meters. Weschler's instruments
satisfy the high quality standards set forth by the utility, OEM, and
process control industries.
FEATURES
BG-281TC
Solid Bar
Mode
50
40
30
60
70
THOUSAND
GALLONS
20
7 0.045
10
80
90
100
0
BG-281TC
Banded Bar
Mode
40
60
RPM
20
80.00
0
Weschler
80
100
BG-241TC
WESCHLER
INSTRUMENTS
Large, high resolution
50 segment LED bar array
Trend indication for signal
direction
5 digit display with resolution
to 0.01%
Communication
RS232/485, SCADA, DCS
Field programmable functions
Zero and full scale point location
Setpoint type (Hi or Low)
Hysteresis & latching
Setpoint time delay
16 step dimming
Digital display for engineering units
Enable/disable front buttons
I.D. selection for communication
Bar form
Peak / Valley enable
Color zones
Over-range /Under-range flashing
Lamp test
Analog retransmit
4-20, 0-1mA DC
1-5, 0-1, 0-5 V DC
Form-C relay outputs
Normally Open
5A, resistive @ 250V AC
5A, resistive @ 28V DC
Normally Closed
3A, resistive @ 250V AC
2A, resistive @ 28V DC
DIVISION OF HUGHES CORPORATION
16900 FOLTZ PARKWAY - CLEVELAND, OH 44149
Phone: (440) 238-2550 - Fax: (440) 238-0660
www.weschler.com e-mail: sales@weschler.com
19
Peak and Valley hold
Retrofit sizes for:
GE/Yokogawa AB/DB 40, 4½” and
AB/DB 16 8¾" switchboard
meters
Crompton 075/07, 4½" and
8¾" switchboard meters
Ashcroft, Heise 8" gauges
Dixson BW051/P
Weschler K241, K261
Versatile selection of inputs
DC
Up to 5A & 250V
AC
Up to 5A & 250V
Thermocouple J, K, T
RTD
10W Cu or 100W Pt
Serial
ASCII
Frequency
Line or mag pickup
Process Control V, mA
SPECIFICATIONS
Bar Display
50 segment LED
2% full scale resolution
Circular display:
BG-241
2850
BG-261/281
2550
Digital Display
5 digit
-9999 to 99999
Resolution
0.01% full scale
Linearity
±1 count
Height
BG-241
BG-261/281
0.4"
0.8"
(10.16mm)
(20.32mm)
Setpoints
Up to 4 SPDT relays with form C
contacts available
Hysteresis 0.00-10.00% FS or latching
Time delay 0-10 sec.
Retransmit Signals
4-20mA DC
0-1mA DC
1-5V DC
0-5V DC
Communication
RS232
RS485 (2-wire)
Response Time
DC
<600msec full scale
AC
<800msec full scale
Power
120, 240V AC (13VA)
12, 24, 28, 48, 125, 250V DC (8W)
Temperature
Operation
00 to 500C, <95% RH
(non-condensing)
Storage
-400 to 850C
Input Impedance
2Mohm @ >4V DC
30kohm @ 120V AC P.T.
0.1ohm @ 5A AC C.T.
250ohm @ 4-20mA DC
100ohm @ 10-50mA DC
Input Isolation
AC
Transformer isolated
(>50mA, 1V)
DC
Differential
Input Overload Ratings
200%, not to exceed 10A
200%, not to exceed 300V
Sensor Power
24VDC (excitation power) @ 90mA DC
Input Sensitivities [ANSI C39.1]
DC:
Current
50 microamp - 5A
Voltage
50mV - 250V
Accuracy
0.04% of full scale
± 1 count
AC RMS:
Current
Voltage
Accuracy
1mA - 5A
50mV - 250V
0.1% of full scale ± 1 count
Temperature:
Thermocouple 0C
Type J
-210 to 795
Type K
-270 to 851
Type T
-270 to 400
Accuracy
Linearity
0
F
-346 to 1463
-454 to 1563
-454 to 752
0.1% of full scale ± 1 count
50 point, 0.1%
0
0
RTD
C
F
100W Pt
-260 to 700 -436 to 1292
Alpha 0.00385 & 0C standard
Other Alpha ratings available
10W Cu
-100 to 260
-148 to 500
Accuracy
0.2% of full scale ± 1 count
Frequency:
50Hz to 20kHz at 5 to 250V p-p
Accuracy 0.1% of full scale ± 1 count
Line Frequency (55 to 65 Hz):
Accuracy 0.01% of full scale
± 1 count
ARTWORK GUIDELINES
11 CHAR.
14 CHAR.
17 CHAR.
MULTIPLIER: 4 CHAR. FIELD IF REQUIRED
X
BG- 241 4.5" (114.3 mm) SQUARE
BG- 261 8.5" (215.9 mm) SQUARE
BG- 281 8.5" (215.9 mm) ROUND
20
ORDERING GUIDE
SAMPLE PART NUMBER
4
B Y 4
(SEE BOTTOM OF PAGE FOR EXAMPLE)
P A A M 1
F A
P T
T
T
PART NUMBER
TYPE:
4 = BG241
6 = BG261
8 = BG281
4-1/2" Square BarGraph
8-3/4” Square BarGraph
8" Circle BarGraph
BAR ZERO POINT:
B = Zero at Bottom
H = Zero at 50% mid scale
F = Zero at F.S.
S = Special /off scale zero
DIGITAL DISPLAY:
R = Red
Y = Yellow
G = Green
S = Special
SETPOINT RELAYS:
4 = 4 Relays
X = No relays
S = Special order
SETPOINT HYSTERESIS:
P = Programmable
S = Special
X = Not required
INPUT TYPE:
A = DC Volts
B = DC Amps
P = 4/20 mADC (input level AK)
N = 1/5 VDC ( input level AV)
M = 10/50 mADC (input level BA)
C = AC Volts RMS
(Barrier terminal strip connections included)
D
=
AC Amps RMS
BAR COLOR:
T = TriColor
B
K
T
A
Y
X
=
=
=
=
=
=
Analog Backplate
Conformal Coating
Terminal Strip Connector
Custom Artwork
Spraytight Front (BG241/261)
None
T
X
=
=
Trend Indicator
NA
P
X
=
=
Peak/Valley Hold
NA
COMMUNICATION:
A = RS232
C = RS485 Bi-directional
X = None
RETRANSMIT:
C = 1-5V DC (or 0-5V on request)
D = 0-1V DC
F = 4-20mA DC, 700 ohm max.
G = 0-1mA DC
W = Excitation Power 24 VDC @ 90mA
S = Special
X = None
POWER:
1 = 120V AC ±15% 50/60Hz
2 = 240V AC ±15% 50/60Hz
4 = 12V DC ±10% *
6 = 250VDC ±10%
7 = 24V DC ±10%
8 = 28V DC ±10%
9 = 48V DC ±10%
U = 110-250V DC / 85-264V AC, 50-440Hz
*Max ambient 45°C
(Barrier terminal strip connections included)
F
Q
T
=
=
=
R
S
U
=
=
=
21
Line Frequency
MAG Pickup Frequency
Thermocouple
Specify J, K, T:
RTD Specify
100 Ohm Pt or
10 Ohm Cu
Special
Serial ASCII (requires com type A, B or C in Communication options)
INPUT LEVEL:
See input Level Matrix Guide
EXAMPLE: 4 B Y 4 P A A M 1 F A P T T T
(4) BG-241, (B) zero at bottom, (Y) Yellow, (4) 4 relays, (P) Programmable
setpoint hysteresis, (A) DC volts input, (AM) full scale is 0.05 volts, (1)120 VAC
50/60 Hz power, (F) 4-20 mA DC isolated retransmit, (A) RS232 communication,
(P) peak/valley hold, (T) trend indicator, (T) terminal strip connector, (T) TriColor
DIMENSIONS
BG-241TC
A*
0.687"
17.450 mm
4.421"
112.293 mm
1.687"
42.850 mm
0.315" DIA. (X4)
8.001 mm
1.687"
42.850 mm
1.687"
42.850 mm
3.960"
100.584mm
4.421"
112.293 mm
4.0" DIA.
101.6 mm
1.687"
42.850 mm
FRONT VIEW
SIDE VIEW
PANEL CUTOUT
(All Models)
BACK VIEW
BG-261TC
8.750"
222.25 mm
1.015"
25.781 mm
A*
*Case Depth
Regular
Extended
3.960"
100.584 mm
8.750"
222.25 mm
A
inches
mm
3.600
5.150
88.2
126.17
1/4-28x5/8” mounting studs
Mounting Torque Requirements
65-70 inch-pounds maximum.
FRONT VIEW
SIDE VIEW
BACK VIEW
BG-281TC
1.015"
25.781 mm
B
DIM. B
DIM. C
Inches (mm) Inches (mm)
A*
3.960"
100.584 mm
10.062
(255.6)
5.1-8.91 dia.
(130-226)
DIM. D
Inches (mm
9.508 dia.
(241.5)
0.312 DIA.TYP.
7.925 mm
FRONT VIEW
1200
1200
SIDE VIEW
C
D
ALTERNATE PANEL CUTOUT
FOR BG-281
TERMINAL CONNECTIONS
TYPE `C` RELAYS
1 2 3 4 5 6 7 8 9 10 11 12
NO C NC NO C NC NO C NC NO C NC
HI/HI
HI
LO
LO/LO
PWR
ReTx ALL INPUTS COMM.
2 1
2 1 1 2 3 4
3 2 1
Rx C Tx
2 1
24 VDC
When excitation
power is ordered
this pinout applies
INPUTS
VOLTAGE / CURRENT
AC LINE FREQUENCY
(1) Hot Side (+)
(2) Return Side (–)
(1) Hot Side (+)
AC Inputs have 6/32 barrier lug
connections.
RTD
(1) + Source
(3) – Sense
(2) Return Side (–)
(2) + Sense
(4) – Source
MAGNETIC PICKUP
(1) –
(2) +
THERMOCOUPLE
Provided w / flying lead and plug
POWER
(1) Hot Side (+)
(2) Return Side (–)
EXCITATION POWER 24 VDC
(1) –
(2) +
COMMUNICATIONS
(1) Transmit (2) Common
(3) Receive
BG-241TC / BG-251TC / BG-261TC / BG-281TC
Options and features vary by model. Contact factory for details and latest specifications.
For AC power measurements see the terminal connections & wiring diagrams on the
BG-AC Power Circular BarGaphs.
RELAY CONTACTS*
(1) AL 1 N.O.
(2) AL 1 C.
(3) AL 1 N.C.
(4) AL 2 N.O.
(5) AL 2 C.
(6) AL 2 N.C.
(7) AL 3 N.O.
(8) AL 3 C.
(9) AL 3 N.C.
(10) AL 4 N.O.
(11) AL 4 C.
(12) AL 4 N.C.
*
N.O.= Normally Open
N.C.= Normally Closed
C.= Common
9/1/12
WESCHLER
INSTRUMENTS
DIVISION OF HUGHES CORPORATION
16900 FOLTZ PARKWAY - CLEVELAND, OH 44149
Phone: (440) 238-2550 - Fax: (440) 238-0660
www.weschler.com e-mail: sales@weschler.com
22
BG Series
Circular BarGraphs
60
90
AC
MEGAWATTS 120
30
BG-261
40
60
PERCENT
20
80
0
100
50
60
THOUSAND
GALLONS
30
70
80
20
10
0 100
90
BG-251
80
0
Weschler
Weschler BarGraph instruments can be configured for a wide range
of input signals. Retrofit sizes are available for most panel and
switchboard meters in use today. These instruments satisfy the
high quality standards of the utility, OEM and process industries.
High resolution 101 segment
LED bar array
Communication
RS-232, RS-485, SCADA, DCS
3½, 4½ or 5 digit display with
resolution to 0.01%
Analog retransmit
4-20, 10-50, 0-1 mA DC
1-5, 0-1, 0-5 V DC
Programmable functions
Zero point location
Setpoint location
Hysteresis (setpoint, trend)
Span and zero
Digital display for engineering units
Enable/disable front buttons
I.D. selection for communication
Form-C relay outputs
Normally Open
5A, resistive @ 250V AC
5A, resistive @ 28V DC
Normally Closed
3A, resistive @ 250V AC
2A, resistive @ 28V DC
120
RPM
40
Digital displays are available with either 3½ or 4½ digit
resolution. The 101 segment bar gives the operator a quick view
of the measured signal and the control setpoints. Separate
setpoint LEDs provide an added visual indication of
control/alarm status. Signal direction is shown by two trend
arrows. Setpoints and other parameters are easily entered from
the front panel.
FEATURES
BG-281
40
The Weschler BG Series Circular BarGraphs include the BG241,
BG251, BG261 and BG281. The panel footprint, shape and
mounting meets direct retrofit applications for 4½" and 8¾"
switchboard meters, as well as 6" and 8" pressure gauge meters.
The electronics housing is identical for both sizes.
Bars are available in red, green or amber for easy viewing.
Weschler BarGraphs combine the visual indication of an analog
gauge with the precision of a digital instrument.
150
0
160
200
Peak and Valley hold
BG-241
Trend indication for signal
Direction
WESCHLER
INSTRUMENTS
DIVISION OF HUGHES CORPORATION
23
TM
Retrofit sizes for:
GE/Yokogawa AB/DB40 4½” and
AB/DB16 8¾" switchboard
meters
Crompton 075/077 4½" and
8¾" switchboard meters
Ashcroft, Heise 6" and 8" gauges
Dixson BW051/P, Weschler K241
Versatile selection of inputs
DC
Up to 5A & 250V
AC
Up to 5A & 250V
Thermocouple J, K, T
RTD
10W Cu or 100W Pt
Power
Watts, VARS, power
factor, phase angle
Frequency
Line or mag pickup
Process Control ma, V
16900 FOLTZ PARKWAY - CLEVELAND, OH 44149
Phone: (440) 238-2550 - Fax: (440) 238-0660
www.weschler.com e-mail: sales@weschler.com
SPECIFICATIONS
Bar Display
101 segment LED
1% full scale resolution
Circular Displays:
BG-241
2850
BG-261/281
2700
BG-251
2700/3450
Setpoints
Up to 4 SPDT relays with form C
contacts available. Hysteresis values of
0.5, 1.0, 2.0% of full scale, selectable
(other values are available).
Optional: Field programmable 0-10%
or latching
Digital Display
3½, 4½ or 5 digit
Linearity ±1 count
Retransmit Signals
4-20mA DC
0-1mA DC
10-50mA DC
1-5V DC
0-5V DC
Resolution
3½ digit
4½ digit
5 digit
Height
BG-241
BG-261/281
BG-251
0.1% full scale
0.01% full scale
0.01% full scale
0.4" (10.16mm)
0.8"
(20.32mm)
0.56" (14.22mm)
Response Time
DC
<600msec full scale
AC
<800msec full scale
Temperature
Operation
00 to 500C, <95% RH
(non-condensing)
Storage
-400 to 850C
Input Isolation
AC
Transformer isolated
(>50mA, 1V)
DC
Differential
AC RMS:
Current
Voltage
Accuracy
Thermocouple 0C
Type J
-210 to 795
Type K
-270 to 851
Type T
-270 to 400
Power
120, 240V AC (6VA)
12, 24, 28, 48, 125, 250V DC (3W)
Input Overload Ratings
200%, not to exceed 10A
200%, not to exceed 300V
1mA - 5A
50mV - 250V
0.1% of full scale ± 1 count
Temperature:
Communication
RS232
RS485
Input Impedance
2Mohm @ >4V DC
30kohm @ 120V AC P.T.
0.1ohm @ 5A AC C.T.
250ohm @ 4-20mA DC
100ohm @ 10-50mA DC
Input Sensitivities [ANSI C39.1]
DC:
Current
50 microamp - 5A
Voltage
50mV - 250V
Accuracy
0.04% of full scale
± 1 count
Accuracy
Linearity
0
F
-346 to 1463
-454 to 1563
-454 to 752
0.1% of full scale ± 1 count
50 point, 0.1%
0
0
RTD
C
F
100W Pt
-260 to 700 -436 to 1292
Alpha 0.00385 & 0C standard
Other Alpha ratings available
10W Cu
-100 to 260
-148 to 500
Accuracy
0.2% of full scale ± 1 count
Frequency:
50Hz to 20kHz at 5 to 250V p-p
Accuracy 0.1% of full scale
± 1 count
Line Frequency (55 to 65 Hz):
Accuracy 0.01% of full scale
± 1 count
Sensor Power
24V DC excitation power @ 90mA
ARTWORK GUIDELINES
11 CHAR.
14 CHAR.
17 CHAR.
MULTIPLIER: 4 CHAR. FIELD IF REQUIRED
X
BG- 241
BG- 261
BG- 251
BG- 281
4.5"
8.5"
6.0"
8.5"
(114.3 mm)
(215.9 mm)
(152.4 mm)
(215.9 mm)
SQUARE
SQUARE
ROUND
ROUND
24
ORDERING GUIDE
SAMPLE PART NUMBER
4
B 3
N 1
(SEE BOTTOM OF PAGE FOR EXAMPLE)
A A M 1
F A
P T
T
X
PART NUMBER
TYPE:
4 =
6 =
8 =
3 =
BG241
BG261
BG281
BG251
LED
G =
A =
X =
M =
B =
P =
4-1/2" Square BarGraph
8-3/4” Square BarGraph
8" Circle BarGraph
6" Circle BarGraph
(not available on 241)
B
K
T
A
BAR ZERO POINT:
B = Zero at Bottom
H = Zero at 50% mid scale
F = Zero at F.S.
S = Special /off scale zero
SETPOINTS:
N = Hi/Lo
H = Hi/Hi-Hi
L = Lo/Lo-Lo
4 = Hi-Hi/Hi/Lo/Lo-Lo
Z = Fail Safe Hi/Lo
X = Not required
S = Special order
P = Programmable Hi or Lo (not available with LED Color X)
=
=
=
R
S
U
=
=
=
Line Frequency
MAG Pickup Frequency
Thermocouple
Specify J, K, T
RTD: Specify
100 Ohm Pt
10 Ohm Cu
Special
Serial ASCII (requires com type A, B or C in Communication options)
25
=
=
Trend Indicator
NA
P
X
=
=
Peak/Valley Hold
NA
POWER:
1 = 120V AC ±15% 50/60Hz
2 = 240V AC ±15% 50/60Hz
4 = 12V DC ±10%*
6 = 250VDC ±10%
7 = 24V DC ±10%
8 = 28V DC ±10%
9 = 48V DC ±10%
U = 110-250V DC / 85-264V AC, 50-440Hz
(Barrier terminal strip connections included)
F
Q
T
T
X
RETRANSMIT:
A = 4-20mA DC into 250 ohms
B = 0-1mA DC into 1000 ohms
C = 1-5V DC
D = 0-1V DC
F = 4-20mA DC, 700 ohms max. (isolated source*)
G = 0-1mA (isolated source*)
H = 10-50mA DC (isolated source*)
W = Excitation Power 24 VDC @ 90mA
X = None
*isolated outputs must have AC power
INPUT TYPE:
A = DC Volts
B = DC Amps
P = 4-20mA DC (input level AK)
N =
1-5V DC ( input level AV)
M = 10-50mA DC (input level BA)
C = AC Volts RMS
AC Amps RMS
Analog Backplate
Conformal Coating
Terminal Strip Connector
Custom Artwork
COMMUNICATION:
A = RS232
C = RS485 Bi-directional
X = None
SETPOINT HYSTERESIS:
1 = 1% of F.S. (standard)
2 = 2% of F.S.
5 = 0.5% of F.S.
X = Not required
S = Special
.
P = Programmable 0-10% or Latching (requires Setpoints P)
=
=
=
=
=
S = Special
Y = Spraytight Front (BG241/261)
DIGITAL DISPLAY:
3 = 3-1/2 digit Display
4 = 4-1/2 digit Display
5 = 5 digit Display
X = Not required
D
* Includes 2 step
COLOR:
dimming
Green only *
Amber only *
Red only (not available on 251)
Multi-color Display *
Enhanced Red *
Superbright red or amber *
*Max ambient 45°C
(Barrier terminal strip connections included)
INPUT LEVEL:
See input Level Matrix Guide
EXAMPLE:
4
B 3
N 1
A A M 1
F A P T
T
X
(4) BG-241, (B) zero at bottom, (3) 3 1/2 digit, (N) Hi/Lo setpoint, (1) 1% of F.S.
setpoint hysteresis, (A) DC volts input, (A-M) full scale is 0.05 volts, (1)120 VAC
50/60 Hz power, (F) 4/20 mADC isolated retransmit, (A) RS232 communication,
(P) peak/valley hold, (T) trend indicator, (T) terminal strip connector,
(X) red led color
DIMENSIONS
BG-241
A*
0.687"
17.450 mm
4.421"
112.293 mm
1.687"
42.850 mm
0.315" DIA. (X4)
8.001 mm
1.687"
42.850 mm
1.687"
42.850 mm
3.960"
100.584mm
4.421"
112.293 mm
4.0" DIA.
101.6 mm
1.687"
42.850 mm
FRONT VIEW
SIDE VIEW
PANEL CUTOUT
(All Models)
BACK VIEW
BG-261
8.750"
222.25 mm
1.015"
25.781 mm
A*
*Case Depth
Regular
Extended
3.960"
100.584 mm
8.750"
222.25 mm
A
inches
mm
3.600
5.150
88.2
126.17
1/4-28x5/8” mounting studs
Mounting Torque Requirements
65-70 inch-pounds maximum.
FRONT VIEW
SIDE VIEW
BACK VIEW
BG-251 / 281
1.015"
25.781 mm
B
METER
TYPE
A*
3.960"
100.584 mm
DIM. B
Inches (mm)
DIM. C
Inches (mm)
DIM. D
Inches (mm)
BG-251
7.562
(192.1)
5.1-6.55 dia.
(130-167)
6.880 dia.
(174.75)
BG-281
10.062
(255.6)
5.1-8.91 dia.
(130-226)
9.508 dia.
(241.5)
0.312 DIA.TYP.
7.925 mm
FRONT VIEW
1200
1200
SIDE VIEW
C
D
ALTERNATE PANEL CUTOUT
FOR BG-251 / 281
TERMINAL CONNECTIONS
TYPE `C` RELAYS
1 2 3 4 5 6 7 8 9 10 11 12
NO C NC NO C NC NO C NC NO C NC
HI/HI
HI
LO
LO/LO
PWR
ReTx ALL INPUTS COMM.
2 1
2 1 1 2 3 4
3 2 1
Rx C Tx
2 1
When excitation
power is ordered
this pinout applies
24 VDC
INPUTS
VOLTAGE / CURRENT
(1) Hot Side (+) (2) Return Side (–)
RTD
(1) + Source
(3) – Sense
(2) + Sense
(4) – Source
MAGNETIC PICKUP
(1) –
(2) +
THERMOCOUPLE
Provided w / flying lead and plug
BG-241 / BG-251 / BG-261 / BG-281
Options and features vary by model. Contact
factory for details and latest specifications.
AC LINE FREQUENCY
(1) Hot Side (+)
(2) Return Side (–)
AC Inputs have 6/32 barrier lug
connections.
POWER
(1) Hot Side (+)
(2) Return Side (–)
EXCITATION POWER 24 VDC
(1) –
(2) +
COMMUNICATIONS
(1) Transmit (2) Common
(3) Receive
RELAY CONTACTS*
(1) Hi/Hi N.O.
(2) Hi/Hi C.
(3) Hi/Hi N.C.
(4) Hi N.O.
(5) Hi C.
(6) Hi N.C.
(7) Lo N.O.
(8) Lo C.
(9) Lo N.C.
(10) Lo/Lo N.O.
(11) Lo/Lo C.
(12) Lo/Lo N.C.
*
N.O.= Normally Open
N.C.= Normally Closed
C.= Common
9/1/12
WESCHLER
INSTRUMENTS
DIVISION OF HUGHES CORPORATION
16900 FOLTZ PARKWAY - CLEVELAND, OH 44149
Phone: (440) 238-2550 - Fax: (440) 238-0660
www.weschler.com e-mail: sales@weschler.com
26
ACP4
BG Series AC Power
Circular BarGraphs
60
Watt, VAR and Power Factor Meters
for Single and Three Phase Systems
90
AC
MEGAWATTS 120
30
150
0
BG-261
40
60
LOAD
PERCENT
20
0
80
100
BG-281
These Weschler BG Series Circular BarGraphs are optimized for
AC power measurements. The ACP4 series BarGraphs utilize self
contained Current Transformers (CT) and accurate solid state
circuitry to measure both single and poly phase systems.
Weschler BarGraphs combine the visual indication of an analog
meter with the precision of a digital instrument. Large digits and
a wide viewing angle allow operators to easily monitor the signal
from a distance. Four case sizes and two versions (standard or
enhanced) offer a broad choice of features and functions.
Weschler BarGraph Watt and Varmeters can replace analog
instruments such as the Weschler/Westinghouse KP-241,
KP-261, KV-241 and KV-261. The analog backplate option duplicates
the Westinghouse terminal stud connections. The BG-241 and
BG-261 panel footprint and mounting also match other 4½ " and
8 ¾" switchboard meters such as the GE AB40, DB40, AB16 and
DB16. The BG-251 and BG-281 sizes match Ashcroft 6” and 8”
gauges.
Weschler BarGraph instruments are housed in a rugged steel
case. They are designed for long life in utility switchboards and
other control applications.
See website for ACP3 (Hall
Effect) Power Bargraph Meters
FEATURES
50
40
60
UNIT # 3
KW
30
! High resolution digital display
70
20
! Signal Trend arrows
80
! Adjustable setpoints
90
10
! Form C relay outputs
0 100
! Peak and Valley hold
BG-251
! Analog retransmit
! Rugged steel case
80
120
VAR
40
0
Weschler
160
200
BG-241
27
The Weschler ACP4 Power Series BarGraph is a self-contained instrument.
No external current transformers, voltage transformers or phase shifters
are required to measure up to 240V and 10A. However correct installation is
critical. Consult the phaser diagrams to determine the proper configuration
and phase orientation for the application, particularly in retrofit situations.
Note that some three phase analog VAR meters may have been specified as
a Wattmeter with a VAR scaleplate and 90 degree phase shifter. The ACP4
only supports an external phase shifter in 4-wire systems. Use ACP3 for
VAR measurements in 3-phase, 3-wire systems with an external phase
shifter.
WESCHLER
INSTRUMENTS
DIVISION OF HUGHES CORPORATION
16900 FOLTZ PARKWAY - CLEVELAND, OH 44149
Phone: (440) 238-2550 - Fax: (440) 238-0660
www.weschler.com e-mail: sales@weschler.com
FEATURES
Wattmeters and Varmeters
Measurement Range
Potential Range
Self-Contained Current Maximum
Numeric Display Characters
Numeric Display Color
Bar Color
Bar Segments
Bar Resolution
Display Brightness
Alarm Hysteresis
Relays
Relay Latching Mode
Relay Fail-safe Mode
HI - LO Alarms
Analog Retransmit
Standard
± 19999
120, 240 V rms
10 A rms
4½ Digit
Red
Red
101
1%
Fixed
0.5, 1 & 2% FS
2 or 4 Form C
N/A
N/A
2 HI, 2 LO
256 Step Resolution
Enhanced
-9999 to 50000 (Neg Autoscale)
120, 240 V rms
10 A rms
4¾ Digit
Red, Green or Amber
Red, Green or Amber
101
1%
Two Level Programmable
0.0-10.0% FS
2 or 4 Form C
Yes
N/A
Individually Programmable
65000 Step Resolution
SPECIFICATIONS
Inputs
Potential (Voltage)
Nominal
Maximum Continuous
Momentary Overload
Input Impedance
Current
Nominal
Maximum Continuous
Momentary Overload
Input Impedance
Frequency
Response Time
Uncertainty
Display (W or VAr)
Setpoints
Temperature Coefficient
Standard
Enhanced
Bar Display
Scale Length
BG-241
BG-261/281
BG-251
Digital Display
Resolution
Standard
Enhanced
Height
BG-241
BG-261/281
BG-251
Communications
RS-232
120, 240 Vac
150, 300 Vac
175, 325 Vac
1MW
10 A
12.5 A
100 A for 500 ms
Internal CT, 0.1W
50/60 or 400 Hz
1 sec.
Enhanced
Contact Ratings
Contact Protection
Hysteresis
Analog Retransmit
Standard
± 0.5% Full Scale, ± 1 count
± 0.1% Full Scale, ± 1 count
Enhanced
± 1.3 ppm / °C
± 0.5 ppm / °C
Environment
Operating Temperature
Humidity
0
285
0
270
0
0
270 /345
0.005%
0.002%
0.4" (10.16 mm)
0.8" (20.32 mm)
0.56" (14.22 mm)
Protocol
9600 baud, 1 start bit, 1 stop bit, no
parity, no flow control
Half duplex, 9600 baud, 1 start bit,
1 stop bit, no parity, no flow control
Party Line
AC Sensing Method
Electronic
RS-485
Setpoint Relays
Quantity
Contact Arrangement
Type
Standard
Storage Temperature
2 or 4
SPDT (Form C)
2 HI (ascending trip) and 2 LO
(descending trip)
All programmable HI or LO
5A, 120/240 Vac or 30 Vdc resistive
1/14 HP 120/240 Vac inductive
MOV clamp
Selectable for all setpoints collectively
256 step resolution, voltage source
0-1, 4-20, 10-50 ma; 0-5, 1-5 V
65000 step resolution, current source
0-24 ma, 0-10 V programmable
-20 to 60°C (Standard)
-20 to 50°C (Enhanced)
0- 95% non-condensing. Condensation
allowed with conformal coating option.
-40 to 85°C
Meter Power
Nominal Tolerance
Current (Maximum)
Standard
Enhanced
12 V DC 10-15 V
225 ma
825 ma
24 V DC 18-36 V
125 ma
420 ma
28 V DC 18-36 V
100 ma
350 ma
48 V DC 36-72 V
65 ma
210 ma
250 V DC ± 10%
12 ma
25 ma
120 V AC ± 10% (50/60 Hz)
2.5 VA
12.5 VA
240 V AC ± 10% (50/60 Hz)
1.3 VA
12.3 VA
110-250V DC / 85-264V AC
6 VA (3 W)
13 VA (8W)
Fuse
Plug-in, rear panel accessible
Connections
BG Backplate
Analog Backplate
#6 screw terminals for AC signals;
Phoenix plug in connectors for Relays,
Analog Retransmit & Communications
(mating connector supplied)
#10-32 studs for AC signals;
Relays, Analog Retransmit and
Communications not available
28
ORDERING GUIDE
PART NUMBER
TYPE:
4 =
6 =
8 =
3 =
BG-241
BG-261
BG-281
BG-251
Specify scale markings and
legend when ordering
DIGIT COLOR**:
B = Enhanced Red
X = Red (not available on BG251)
G = Enhance Green
A = Enhanced Amber
M = Red with Multi-color bar *
S = Special
*Enhanced only
4½" Square BarGraph
8½" Square BarGraph
8" Circle BarGraph
6" Circle BarGraph
BAR ZERO POINT:
B = Zero at Bottom
H = Zero at 50% mid scale
F = Zero at F.S.
S = Special /off scale zero
DISPLAY:
4 = 4½ digit Standard
E = 4¾ digit Enhanced
Y
B
K
A
X
=
=
=
=
=
Spraytight Face
Analog Backplate
Conformal Coating
Custom Artwork
NA
T
X
=
=
Trend Indicator
NA
P
X
=
=
Peak/Valley Hold
NA
COMMUNICATION:
A = RS232
C = RS485 Bi-directional
X = None
SETPOINTS:
N = Hi/Lo
H = Hi/Hi-Hi
L = Lo/Lo-Lo
4 = Hi-Hi/Hi/Lo/Lo-Lo
B = 2 relays, programmable Hi or Lo *
D = 4 relays, programmable Hi or Lo *
X = None
S = Special order
*Enhanced only
RETRANSMIT:
A = 4-20mA DC into 250W
B = 0-1mA DC into 1000W
C = 1-5V DC
D = 0-1V DC
F = 4-20mA DC, 700 W max. (isolated)
G = 0-1mA (isolated)
T = 0-10V across 500W (isolated) *
K = 0-1V across 50W (isolated) *
M = 1 -5V across 250W (isolated) *
X = None
*Enhanced only.
Isolated requires AC power
SETPOINT HYSTERESIS:
1 = 1% of F.S.
2 = 2% of F.S.
5 = 0.5% of F.S.
X = Not required
S = Special.
P = Programmable 0-10% or Latching (Enhanced only)
POWER:
1 = 120V AC 50/60Hz
2 = 240V AC 50/60Hz
4 = 12V DC *
6 = 250V DC
7 = 24V DC
8 = 28V DC
9 = 48V DC
U = 110-250V DC / 85-264V AC, 50-440Hz
INPUT TYPE:
L = Watts single phase
H = Watts three phase
V = VARs single phase
Z = VARs three phase
Y = VARs three phase for external phase shifter (4-wire only)
G = Power factor (display 1.00 max, specify lag on right or left)
*Max ambient 45°C
INPUT LEVEL:
12 = Single phase two wire
13 = Single phase three wire
33 = Three phase three wire
34 = Three phase four wire
3E = Three phase four wire
Specify:
CT ratio _____________ Full scale Watts value ___________
PT ratio _____________ External phase shifter ___________
System Delta
or WYE
1 element
2 element
2 element
2½ element
3 element
**bar color matches digit color unless specified on order
EXAMPLE:
4
B 4
N 1
H 3
3
1
F A P T
Y X
(4) BG-241, (B) zero at bottom, (4) 4-1/2 digit Standard display, (N) Hi/Lo setpoint, (1) 1% of F.S.
setpoint hysteresis, (H) Watts, poly phase, (33) Three phase three wire, (1)120 VAC 50/60 Hz
power, (F) 4-20 mADC isolated retransmit, (A) RS232 communication, (P) peak/valley hold, (T)
trend indicator, (Y) spray tight face, (X) red LED color
Options and features vary by model. Contact factory for details and latest specifications.
29
WESCHLER
INSTRUMENTS
DIVISION OF HUGHES CORPORATION
16900 FOLTZ PARKWAY - CLEVELAND, OH 44149
Phone: (440) 238-2550 - Fax: (440) 238-0660
www.weschler.com e-mail: sales@weschler.com
DIMENSIONS
BG-261
BG-241
A
4.421"
112.3 mm
8.75”
222.25 mm
0.69”
17.5 mm
1.02"
25.9 mm
A
1/4-28 x 5/8" studs
4.421"
112.3 mm
8.75”
222.25 mm
3.96”
100.6mm
FRONT VIEW
FRONT VIEW
SIDE VIEW
A= 5.15" (130.8mm). Add 0.6" (15mm)
for screw terminals or 0.85" (22mm) for
studs on analog backplate
BG-251 / 281
BG-251=7.562" 192.1 mm
BG-281=10.062” 255.6 mm
SIDE VIEW
BG-251=5.1-6.55" DIA.
130-167 mm
BG-281=5.1-8.91" DIA.
130-226 mm
1.05"
26.7 mm
A
3.96”
100.6 mm
1.687"
42.850 mm
1.687"
42.850 mm
0.315" DIA. (X4)
8.001 mm
1200
1200
1.687"
42.850 mm
3.96"
100.6 mm
4.0" DIA.
101.6 mm
0.312" DIA. TYP.
7.925 mm
FRONT VIEW
ALTERNATE PANEL CUTOUT
FOR BG-251 / 281
SIDE VIEW
1.687"
42.850 mm
BG-251=6.88" DIA.
174.75 mm
BG-281=9.508" DIA.
241.5 mm
PANEL CUTOUT
Mounting Torque 65-70 inch-pounds max.
TERMINAL CONNECTIONS
C
B
+
-
1 RELAYS
ReTx
A
N
C
B
A
BarGraph
Power
123
6 5 4 3 2 1
COMM
ReTx
7 8 9 10 11 12
7 8 9 10 11 12
LOAD
1f 2Wire
Wattmeter
BarGraph
Power
-
2
C
B
123
COMM
6 5 4 3 2 1
Fuse
1
1 RELAYS
12
Fuse
LOAD
3f 4Wire
Varmeter
(3 element)
1 RELAYS
12
COMM
6 5 4 3 2 1
3f 4Wire
Wattmeter
BarGraph
Power
ReTx
123
12
Fuse
N
+
3f 3Wire
Wattmeter
BarGraph
Power
-
A
+
B
-
C
7 8 9 10 11 12
LOAD
3f 3Wire
Wattmeter
A
N
C
B
3f 4Wire
Varmeter with
Phase Shifter
A
(Analog
Back)
(Analog Back)
1
2
3
4
5
6
+
MV-832
ReTx
1 RELAYS
123
12
6 5 4 3 2 1
Fuse
COMM
1 2
4
3
7 8 9 10 11 12
5
3
1 2
4
5
+
LOAD
See Manual for
other configurations
8
7
10
+
-
6
9
BarGraph
Power
6
9
8
7
10
BarGraph
Power
10/1/12
LOAD
LOAD
30
BG Series
Large BarGraphs
82.3 22.6
P
E
R
C
E
N
T
100
25
80
20
60
40
The Weschler BG Series Large BarGraphs include single and
multiple channel models BD101, PG101 and PG202. These
large BarGraphs directly retrofit Hays, Bailey and Dixson draft
gauges. Bars are available in red, green or amber for easy viewing. Weschler's LED BarGraphs combine the visual indication of
an analog instrument with the precision of a digital instrument.
15
P
S
I
G
The BD101 BarGraph has a 12" edgewise display with 101 bar
segments. Large digits and a wide viewing angle allow operators to easily monitor the signal from a distance. The BD101 can
be ordered as a single channel unit or ganged into a multichannel unit to simplify installation.
10
20
5
0
0
PG202
83.8
80
FEATURES
40
BD101
0
BD101
MULTI-CHANNEL
Ø
A
7 3.5
Ø
B
80
P
E
R
C
E
N
T
60
40
82.6
100
100
Ø
C
80
P
E
R
C
E
N
T
60
40
80
P
E
R
C
E
N
T
60
40
20
20
20
0
0
0
Programmable functions*
Zero point location
Setpoint location
Hysteresis (setpoint, trend)
Span and zero
Digital display for engineering units
Enable/disable front buttons
I.D. selection for communication
Form-C relay outputs
Normally Open
5A, resistive @ 250V AC
5A, resistive @ 28V DC
Normally Closed
3A, resistive @ 250V AC
2A, resistive @ 28V DC
Trend indication for signal
direction
WESCHLER
INSTRUMENTS
DIVISION OF HUGHES CORPORATION
31
Serial ASCII communication
RS232, RS485, SCADA, DCS
3 and 4 digit displays with
resolution up to 0.01%.
20
100
Peak and Valley hold
High resolution 51 or 101
segment LED bar array
60
83.8
The PG Series BarGraphs have a 10" edgewise display with a 51
segment LED bar. One and two channel models are available.
Setpoints and other parameters on the PG101/202 are easily
entered from the front panel. Analog retransmit and digital
communications are optional.
Weschler BarGraphs can be configured for a wide range of input
signals. These instruments satisfy the high quality standards of
the utility, OEM and process control industries.
100
P
E
R
C
E
N
T
TM
Analog retransmit
4-20, 10-50, 0-1mA DC
0-1, 0-5, 1-5V DC
Retrofit sizes for:
Dixson K051
Hays Republic 216
Bailey PG Series Draft Gauges
Versatile selection of inputs
DC
Up to 5A & 250V
AC
Up to 5A & 250V
Thermocouple J, K, T
RTD
10W Cu or 100W Pt
Serial
ASCII
Frequency
Line or mag pickup
Process Control mA, V
* Model BD101 requires a hand-held button
station to change functions.
16900 FOLTZ PARKWAY - CLEVELAND, OH 44149
Phone: (440) 238-2550 - Fax: (440) 238-0660
www.weschler.com e-mail: sales@weschler.com
SPECIFICATIONS
Bar Display
BD101
101 segment LED,
10" display
1% full scale resolution
Input Sensitivities [ANSI C39.1]
Setpoints
Up to 4 SPDT relays with form C
contacts available. Hysteresis values
of 0.5, 1.0, 2.0% of full scale,
selectable (other values are available.
PG101/202 51 segment LED,
5.1" display
2% full scale resolution
Digital Display
BD101
3½ or 4½ digit
Linearity ±1 count
Resolution 0.1% full scale (3½d)
Resolution .01% full scale (4½d)
Height 0.56"
PG101/202
3 digit or 4 digit
Linearity ± 1 count
Resolution 0.1% full scale
Height 0.56"
Response Time
DC
<600 msec full scale
AC
<800 msec full scale
DC:
Current
Voltage
Accuracy
Retransmit Signals
0-1mA DC
1-5V DC
10-50mA DC
4-20mA DC
AC RMS:
Current
Voltage
Accuracy
Power (each channel)
120/240V AC ±15%
50/60/400 Hz (6.0 VA)
8-30V AC (3VA max)
4.5-9V DC (600mA max)
9-36V DC (300mA max)
18-75V DC (150mA max)
110-300V DC (35mA max) / 85-264V
AC (47-440Hz, 7VA max)
Accuracy
Linearity
Accuracy
F
-346 to 1463
-454 to 1563
-454 to 752
0.1% of full scale ± 1 count
50 point, 0.1%
0.2% of full scale ± 1 count
Frequency:
50Hz to 20kHz at 5 to 250V p-p
Accuracy 0.1% of full scale ± 1 count
Line Frequency (55 to 65 Hz):
Accuracy 0.01% of full scale
± 1 count
Input Overload Ratings
200%, not to exceed 10 A
200%, not to exceed 300 V
Sensor Power
24V DC excitation power @ 90mA
0
0
0
RTD
C
F
100W Pt
-260 to 700 -436 to 1292
Alpha 0.00385 & 0C standard
Other Alpha ratings available
10W Cu
-100 to 260
-148 to 500
Input Isolation
AC
Transformer isolated
(>50 mA, 1 V)
DC
Differential
Communication
RS232
RS485 bi-directional
1mA - 5A
50mV - 250V
0.1% of full scale ± 1 count
Temperature:
Thermocouple 0C
Type J
-210 to 795
Type K
-270 to 851
Type T
-270 to 400
Input Impedance
2Mohm @ >4V DC
30kohm @ 120V AC P.T.
0.1ohm @ 5A AC C.T.
250ohm @ 4-20mA DC
100ohm @ 10-50mA DC
Temperature
Operation
0 to 500C @ 95% RH
(non-condensing)
Storage
-40 to 850C
50 microamp - 5A
50mV - 250V
0.04% of full scale
± 1 count
ARTWORK GUIDELINES
MULTIPLIER:
4 CHAR.
IF REQUIRED
PG202 VERTICAL
17 CHAR.
X
12 CHAR.
X
*
BD101 VERTICAL MULTIPLIER:
*
17 CHAR.
4 CHAR.
IF REQUIRED
X
*
17
C
H
A
R.
range
* Numerical
MAX. 3 Digits
*
*
*
32
ORDERING GUIDE
SAMPLE PART NUMBER
K H 3
N 1
P A K
(SEE BOTTOM OF PAGE FOR EXAMPLE)
1
X X
P X
X X
PART NUMBER
TYPE:
K = BD101 - 10" Vertical BarGraph
V = PG101 - Single Multipoint BarGraph
W = PG202 - Dual Multipoint BarGraph
LED COLOR:
G = Green only
A = Amber only
X = Red only
M = Multicolor Special
BAR ZERO POINT:
B = Zero at Bottom
H = Zero at 50% mid scale
F = Zero at F.S.
S = Special /off scale zero
DIGITAL DISPLAY:
3 =
3 digit Display (PG101/202)
3-1/2 digit Display (BD101/Multiple)
4 =
4 digit Display (PG101/202)
4-1/2 digit Display (BD101/Multiple)
X =
Not required
S =
Special
K
T
A
X
S
=
=
=
=
=
Confomal Coating
Terminal Strip Connector
Custom Artwork
NA
Special
T
X
=
=
Trend Indicator
NA
P
X
=
=
Peak/Valley Hold
NA
COMMUNICATION:
A = RS232
C = RS485 Bi-directional
X = None
SETPOINTS:
N = Hi/Lo
H = Hi/Hi-Hi
L = Lo/Lo-Lo
4 = Hi-Hi/Hi/Lo/Lo-Lo
Z = Fail Safe Hi/Lo
X = Not required
RETRANSMIT:
A = 4-20mA DC into 250 ohms
B = 0-1mA DC into 1000 ohms
C = 1-5V DC
D = 0-1V DC
F = 4-20mA DC, 700 ohms max. (isolated source*)
G = 0-1mA (isolated source*)
H = 10-50mA DC (isolated source*)
W = Excitation Power 24 VDC @ 90mA
X = None
*isolated outputs must have AC power
SETPOINT HYSTERESIS:
1 = 1% of F.S. (standard)
2 = 2% of F.S.
5 = 0.5% of F.S.
X = Not required
S = Special
POWER:
1 = 120V AC
2 = 240V AC
INPUT TYPE:
A = DC Volts
B = DC Amps
P = 4-20mA DC (input level AK)
N = 1-5V DC ( input level AV)
M = 10-50mA DC (input level BA)
C = AC Volts RMS
D = AC Amps RMS
F = Line Frequency
Q = MAG Pickup Frequency
T = Thermocouple
Specify J, K, T
R =
RTD: Specify
100 Ohm Pt
10 Ohm Cu
S = Special
U = Serial ASCII (requires com. type A, B or C in Communication options)
ORDERING INFORMATION: LEFT SIDE
Input:
to
Bar Display*:
legend
33
=
=
=
=
=
8-30V AC
9-36V DC
18-75V DC
110-300V DC / 85-264V AC
4.5-9VDC
INPUT LEVEL:
See input Level Matrix Guide
EXAMPLE:
K H 3
N 1
P A K 1
X X
P X
X X
(K) BD101, (H) zero at 50% mid scale, (3) 3-1/2 digit, (N) Hi/Lo setpoint, (1) 1%
of F.S. setpoint hysteresis, (P) 4/20mADC (input level AK), (1) 120 VAC 50/60
Hz power, (X) no retransmit, (X) no communication, (P) peak valley/hold,
(X) no trend indicator, (X) na, (X) red led color
ORDERING INFORMATION: RIGHT SIDE
Eng. Units:
Input:
to
to
Bar Display*:
(*State % of bar for each different color)
Digital Display
A
B
C
D
E
Eng. Units:
to
(*State % of bar for each different color)
to
Color
Digital Display
legend
to
Color
DIMENSIONS
PG-101/202
4.05"
102.87 mm
6.95"
176.53 mm
1.30"
33.02 mm
3.85"
97.79 mm
5.73"
145.542 mm
10.10"
256.54 mm
0.25"
6.35 mm
FRONT VIEW
3.970"
100.838 mm
SIDE VIEW
BD-101
BACK VIEW
7.160"
181.86 mm
3.14"
79.76 mm
9.120"
231.648 mm
2.99"
2.950"
76mm
74.93
mm
2.840"
72.14 mm
12.9"
327.66 mm
SIDE VIEW
BD-101 Multiple Channel
+
2.99"
76mm
10.5"
266.70 mm
12.3"
312.42 mm
5.560"
141.22 mm
FRONT VIEW
PANEL CUTOUT
BACK VIEW
OPTIONAL
MOUNTING
PANEL CUTOUT
Number of
Instruments
+
4
5
6
9
12.17"
309.12 mm
15.37"
390.4 mm
N
4
5
6
9
A
15.00"
381.00 mm
FRONT VIEW
SIDE VIEW
BACK VIEW
TERMINAL CONNECTIONS
2
PWR
1
2
PWR
1
2
PWR
1
1
1
2
3
3
3
4
5
5
6
6
6
7
7
POWER
4
2
3
1
4
2
1
INPUT
2
Re Tx
RTD/MAG
THERMO
1
24 VDC
3
COM.
2
2
1
1
3
4
1
2
1
Re Tx
DIVISION OF HUGHES CORPORATION
FREQ
2
3
2
2
Re Tx
WESCHLER
INSTRUMENTS
COMM.
1
10 11 12
4
2
RTD/MAG
THERMO
1
9
2
1
4
INPUT
3
2
PG101/202
11.15
13.47
15.65
22.46
(283.21)
(342.14)
(397.51)
(570.48)
N
Inches
(Millimeters)
11.12
13.44
15.62
22.43
(282.45)
(341.38)
(396.75)
(569.72)
PANEL CUTOUT
NPUT
VOLTAGE / CURRENT
(1) Return Side (–) (2) Hot Side (+)
COMMUNICATIONS
(1) Transmit (2) Common
(3) Receive
RTD
(1) – Source
(3) + Sense
EXCITATION POWER
(1) VAC (hot side)
(2) VAC (common)
(3) 24 VDC +
(4) 24 VDC –
(2) – Sense
(4) + Source
MAGNETIC PICKUP
(2) Lead 1 (–)
(3) Lead 2 (+)
HOT
8
3
7
2
COM.
3
1
2
2
1
INPUT
RTD/MAG
THERMO
1
24 VDC
1
HOT
FREQ
1
10 11 12
2
9
1
3
FREQ
2
10 11 12
COMM.
1
9
POWER
COMM.
8
8
TYPE "C" RELAYS
4
5
TYPE "C" RELAYS
4
TYPE "C" RELAYS
WHEN
EXCITATION
POWER
IS ORDERED
THIS
PINOUT
APPLIES
1
2
2
WHEN
EXCITATION
POWER
IS ORDERED
THIS
PINOUT
APPLIES
(Millimeters)
15.4"
391.16 mm
Number of
Instruments
15.37"
390.4 mm
A
Inches
THERMOCOUPLE
Provided w / flying lead and plug.
AC LINE FREQUENCY
(1) Hot Side (+)
(2) Return Side (–)
AC Inputs have 6/32" barrier lug
connections.
POWER
(1) Hot Side (+)
(2) Return Side (–)
BD101
16900 FOLTZ PARKWAY - CLEVELAND, OH 44149
Phone: (440) 238-2550 - Fax: (440) 238-0660
www.weschler.com e-mail: sales@weschler.com
RELAY CONTACTS*
(1) Hi/Hi N.O.
(2) Hi/Hi C.
(3) Hi/Hi N.C.
(4) Hi N.O.
(5) Hi C.
(6) Hi N.C.
(7) Lo N.O.
(8) Lo C.
(9) Lo N.C.
(10) Lo/Lo N.O.
(11) Lo/Lo C.
(12) Lo/Lo N.C.
*
N.O.= Normally Open
N.C.= Normally Closed
C.= Common
9/1/12
Options and features vary by model. Contact
factory for details and latest specifications.
34
BG Series
Dual BarGraphs
I88.4 42.25
350
P
S
I
G
300
250
200
200
I
N
150
H
2
0
100
150
100
50
50
0
0
Weschler
PC-202
Weschler's 101 segment LED BarGraphs combine the best of
analog and digital solid state instrumentation. The BI125 and
PC202 Dual BarGraphs have two independent 101 segment
indicator bars that fit easily into standard 6" edgewise and DIN
size panel cutouts. Bars are available in red, green or amber.
Each bar gives the operator a quick view of the measured signal
and the control setpoints. The 101 segment bar provides 1%
display resolution. Setpoint LEDs provide an added visual
indication of control/alarm status. Signal direction is indicated
by two trend indicators for each display. Dual 3-1/2 or 4 digit
displays on the PC202 provide precise readouts of the signal
variables. Setpoints and other parameters on the PC202 are
easily entered from the front panel. The BI1251 uses an external button station to program the setpoints.
The Weschler Dual BarGraph instruments accept DC process
inputs, either voltage or current. Other BarGraph models can
be configured for a wide variety of input signals. Retrofit sizes
are available for most panel and switchboard meters in use
today. These instruments satisfy the high quality standards set
forth by the utility, OEM and process control industries.
FEATURES
High resolution 101 segment
LED bar
Weschler
PUMP 1 PUMP 2
100
100
80
80
60
60
40
P
E
R
C
E
N
T
40
20
20
0
0
TM
Peak and Valley hold
Programmable functions
Zero point location
Setpoint location
Hysteresis (setpoint, trend)
Span and zero
Digital display for engineering units
Enable/disable front buttons
I.D. selection for communication
Form-C relay outputs
Normally Open
5A, resistive @ 250VAC
5A, resistive @ 28VDC
Normally Closed
3A, resistive @ 250VAC
2A, resistive @ 28VDC
Trend indication for signal
direction.
Retrofit sizes for:
Dixson BB202, BG202
Sigma/International Instruments
1251
3½ or 4 digit display with
resolution up to 0.01%.
Process Control DC inputs up
to 5 amps and 250V
BI-1251
35
WESCHLER
INSTRUMENTS
DIVISION OF HUGHES CORPORATION
16900 FOLTZ PARKWAY - CLEVELAND, OH 44149
Phone: (440) 238-2550 - Fax: (440) 238-0660
www.weschler.com e-mail: sales@weschler.com
SPECIFICATIONS
Bar Display
101 segment LED
4.0" display
1% full scale resolution
Setpoints
Up to 4 SPDT relays with form C
contacts available. Hysteresis
values of 0.5, 1.0, 2.0% of full
scale, selectable
(other values are available).
Digital Display
(PC202 only)
4 digit
Linearity ± 1 count
Resolution 0.01% full scale
Height 0.3”
Retransmit Signals
(one side on 202 only)
0-1 mADC
1-5 VDC
4-20mADC
Digital display not available on BI1251
Power (each side)
120/240V AC ±15%
50/60/400 Hz (6.0 VA)
8-30V AC (3VA max)
4.5-9V DC (600mA max)
9-36V DC (300mA max)
18-75V DC (150mA max)
Response Time
DC <600 msec full scale
AC <800 msec full scale
Temperature
Operation 0 to 500C @ 95% RH
(non-condensing)
Storage -400 to 850C
110-300V DC (35mA max) /
85-264V AC (47-440Hz,
7VA max)
Communication
(one side on 202 only)
RS232
RS485 bi-directional
Input Impedance
2Mohm @ >4V DC
250ohm @ 4-20mA DC
100ohm @ 10-50mA DC
Input Overload Ratings
200%, not to exceed 10A
200%, not to exceed 250V
Input Isolation
DC Differential
DC Input
Current
Voltage
Accuracy
Sensitivities
50 microamp - 5A
50mV - 250V
0.04% of full scale
± 1 count
ARTWORK GUIDELINES
MULTIPLIER:
4 CHAR.
IF REQUIRED
PC202
17 CHAR.
X
BI1251
X
*
*
*
*
17 CHAR.
20 CHAR.
*
*
* Numerical
range
20
CHAR.
*
*
MAX. 3 Digits
36
ORDERING GUIDE
SAMPLE PART NUMBER
D B 3
N 1
(SEE BOTTOM OF PAGE FOR EXAMPLE)
A A M 1
X X
P X
X X
PART NUMBER
TYPE:
D = PC202 DIN Size Dual BarGraph
X = BI1251 6" Vertical BarGraph
LED COLOR:
G = Green only
A = Amber only
X = Red only
BAR ZERO POINT:
B = Zero at Bottom
H = Zero at 50% mid scale
F = Zero at F.S.
S = Special /off scale zero
DIGITAL DISPLAY:
3 = 3-1/2 Digit Display
4 = 4 digit Display
X = None
S = Special
SETPOINTS:
N = Hi/Lo
H = Hi/Hi-Hi
L = Lo/Lo-Lo
Z = Fail Safe Hi/Lo
X = None
S = Special order
N 1
A A M 1
to
A
B
C
D
E
X X
P X
Trend Indicator (202 only)
NA
P
X
=
=
Peak/Valley Hold
NA
to
Digital Display
to
=
=
=
=
=
8-30V AC
9-36V DC
18-75V DC
110-300V DC / 85-264V AC
4.5-9VDC
X X
INPUT LEVEL:
See input Level Matrix Guide
** Available on one side only. Isolated retransmit requires AC power.
ORDERING INFORMATION: RIGHT SIDE
Eng. Units:
Bar Display:
37
=
=
POWER:
1 = 120V AC
2 = 240V AC
ORDERING INFORMATION: LEFT SIDE
legend
T
X
RETRANSMIT:**
A = 4- 20 mADC into 250 ohm
B = 0-1 mADC into 1000 ohm
C = 1-5 VDC
D = 0-1 VDC
F = 4-20 mA DC, 700 ohm max. (isolated)
X = None
*(Available on one side of 202 only)
(D) PC202, (B) zero at bottom, (3) 3-1/2 digit, (N) Hi/Lo setpoint, (1)
1% of F.S. setpoint hysteresis, (A) DC volts input, (AM) full scale is
0.05 volts, (1) 120 VAC 50/60 Hz power, (X) not required, (X) not
required, (P) peak/valley hold, (X) not required, (X) not required,
(X) red led color
Input:
Conformal Coating
Terminal Strip Connector
Custom Artwork
NA
Special
*Available on one side of 202 only
INPUT TYPE:
A = DC Volts
B = DC Amps
P = 4-20mA DC (input level AK)
N = 1-5V DC ( input level AV)
M = 10-50mA DC (input level BA)
S = Special
D B 3
=
=
=
=
=
COMMUNICATION:*
A = RS232
C = RS485 Bi-directional
X = None
SETPOINT HYSTERESIS:
1 = 1% of F.S. (standard)
2 = 2% of F.S.
5 = 0.5% of F.S.
X = Not required
S = Special
EXAMPLE:
K
T
A
X
S
Input:
Color
to
Eng. Units:
Bar Display:
to
Digital Display
to
legend
Color
DIMENSIONS
BI-1251
6.656"
169.062 mm
1.700"
43.18 mm
1.770"
44.958 mm
2.166"
55.016 mm
0.540"
13.716 mm
5.695"
144.653 mm
5.664"
143.866 mm
6.036"
153.314 mm
FRONT VIEW
SIDE VIEW
BACK VIEW
PANEL CUTOUT
PC-202
2.835"
72.009 mm
0.314"
7.976 mm
6.555"
166.497 mm
2.600"
66.040 mm
FRONT VIEW
5.350"
135.890 mm
5.340"
135.636 mm
5.699"
144.755 mm
BACK VIEW
SIDE VIEW
PANEL CUTOUT
TERMINAL CONNECTIONS
2
PWR
1
2
PWR
1
INPUT
VOLTAGE / CURRENT
(1) Return Side (–)
(2) Hot Side (+)
2
2
1
3
INPUT
2
4
6
8
7
7
4
3
2
TYPE "C" RELAYS
1
2
PWR
RELAY CONTACTS*
(1) Hi/Hi N.O.
(2) Hi/Hi C.
(3) Hi/Hi N.C.
(4) Hi N.O.
(5) Hi C.
(6) Hi N.C.
(7) Lo N.O.
(8) Lo C.
(9) Lo N.C.
(10) Lo/Lo N.O.
(11) Lo/Lo C.
(12) Lo/Lo N.C.
*
N.O.= Normally Open
N.C.= Normally Closed
C.= Common
1
2
PWR
5
6
6
5
4
2
1
1
INPUT
1 2
INPUT
TYPE "C" RELAYS
8
9
10 11 12
10 11 12
10 11 12
9
9
9
8
8
10 11 12
7
7
3
6
1
(2) Return Side (–)
COMMUNICATIONS
(1) Transmit (2) Common (3) Receive
5
5
2
4
TYPE "C" RELAYS
1
1
3
TYPE "C" RELAYS
2
INPUT
1
POWER
(1) Hot Side (+)
9/1/12
Options and features vary by model. Contact
factory for details and latest specifications.
WESCHLER
INSTRUMENTS
DIVISION OF HUGHES CORPORATION
16900 FOLTZ PARKWAY - CLEVELAND, OH 44149
Phone: (440) 238-2550 - Fax: (440) 238-0660
www.weschler.com e-mail: sales@weschler.com
38
BF6400
SINGLE & DUAL
CONCENTRIC BARGRAPHS
Features:
BF6402 with Attachable
Button Station option
Two Complete Bargraph Units in One Case
Replaces Foxboro 6400HC Indicators
High Resolution 101 Segment Bars
3½ or 4½ Digit LED Displays
Wide Selection of Inputs
Alarm, Retransmit & SCADA Output Options
The BF6400 family of Bargraph Meters provide either one or two channels of signal conditioning and display in
a rugged metal case. For maximum flexibility, each channel is configured separately and operates totally
independently. These units provide large, bright displays to replace Foxboro mechanical indicators or other
large analog gauges. In addition to replicating the Foxboro 0-50mA DC input, a wide selection of DC, AC,
temperature and frequency inputs can be ordered. Adjustable setpoints and up to four relay outputs provide
the capability for control and alarm based on signal level. Custom scales can be specified to duplicate existing
gauge markings.
The front panel has no operator accessible controls, so configuration settings cannot be accidentally changed.
Either the digital interface or optional Attachable Button Station can be used to setup or reconfigure each
channel. The digital displays provide precise measurements of process parameters. The optional analog
retransmit can be used for remote display or connection to a plant SCADA system. The BF6400 provides many
other features of the popular Weschler BG252, including adjustable bar zero location, bar span, digital decimal
point, digital full scale and flashing overrange.
Key Specifications
101 segment Red, Green or Amber LED, 5" (127mm) dia.
101 segment Red LED, 3.5" (89mm) dia.
7 Segment LED, 0.4" (10mm) high, color matches bar.
3½ digit resolution 0.1% of full scale.
4½ digit resolution 0.01% of full scale.
Input Sensitivity: 50mA-5ADC, 50mV-250VDC, 50mA-5AAC, 1-250VAC.
Line frequency 55-65Hz, Freq 50-20kHz.
Input Overload: 200%, not to exceed 250V or 10A.
Setpoint Relays: 2 or 4 Form C, single pole (SPDT)
Normally Open contacts: 5A@250VAC or 28VDC, resistive.
Normally Closed contacts: 3A@250VAC or 28VDC resistive.
Connections:
Phoenix style standard (mating connectors supplied),
terminal strips optional.
Dimensions:
Front Bezel:
6-7/16"W x 7-1/8"H (164x181mm), protrudes 1/2".
Case:
5-15/16"W x 6-1/8"H (143x156mm).
Depth:
6-5/8" (168mm) behind panel; add 1/2" (13mm)
for connectors.
Operating Temperature: 0 to 50ºC, <95% RH, non-condensing.
Storage Temperature:
-40ºC to 85ºC.
Weight:
5.2 lbs. (2.36kg)
Contact Weschler for 10CFR50
Nuclear Qualified models
Outer Bar:
Inner Bar:
Digital Display:
See BG Series Edgewise data sheet for more complete input specifications.
39
WESCHLER
INSTRUMENTS
DIVISION OF HUGHES CORPORATION
Mounting hardware attaches
to top & bottom or sides
16900 FOLTZ PARKWAY - CLEVELAND, OH 44149
Phone: (440) 238-2550 - Fax: (440) 238-0660
www.weschler.com e-mail: sales@weschler.com
ORDERING GUIDE
OUTER CHANNEL
x
X
INNER CHANNEL
TYPE:
E = BF6402 Dual Channel
F = BF6401 Single Channel ¨
LED COLOR:
G = Green
A = Amber
X = Red
S = Special or Mixed
BAR ZERO POINT:
B = Zero at Bottom
H = Zero at 50% Mid scale
F = Zero at Full Scale
S = Special
MISCELLANEOUS:
K = Conformal Coating
T = Terminal Strip Connector
S = Special
X = None
DIGITAL DISPLAY:
3 = 3½ digit
4 = 4½ digit
X = None
A = Custom Artwork
X = None
SETPOINTS:
N = Hi / Lo
H = Hi / Hi-Hi
L = Lo / Lo-Lo
4 = Hi-Hi / Hi / Lo / Lo-Lo
Z = Fail Safe Hi / Lo
X = None
S = Special
P = Peak/Valley Hold
X = Not Required
COMMUNICATION:
A = RS232
C = RS485 (2 wire bi-directional)
X = None
SETPOINT HYSTERESIS:
1 = 1% of Full Scale
2 = 2% of Full Scale
5 = 0.5% of Full Scale
X = None
S = Special
RETRANSMIT:
A = 4-20mA DC into 250 W
B = 0-1ma DC into 1000 W
C = 1-5V DC
D = 0-1V DC
F = 4-20mA DC, 700 W max. (isolated source*)
G = 0-1mA DC (isolated source*)
H = 10-50mA DC (isolated source*)
W = 24VDC@90mA Excitation Power
(not available with F, G or H)
X = None
*unit must be AC powered
INPUT:
A = DC Volts
B = DC Amps
P = 4-20mA DC (use input level AK)
N = 1-5V DC (use input level AV)
M = 10-50mA DC (use input level BA)
C = AC Volts RMS (terminal strip connections incl.)
D = AC Amps RMS (terminal strip connections incl.)
F = Line Frequency
Q = Mag Pickup Frequency
)
T = Thermocouple (specify J, K, or T
R = 3 or 4 wire RTD (specify 100W Pt or 10W Cu )
U = Serial ASCII (communication option required)
S = Special
INPUT LEVEL:
See Input Level Matrix chart
POWER:
1 = 120VAC 50/60Hz
2 = 240VAC 50/60Hz
A
B
C
D
E
=
=
=
=
=
8-30V AC
9-36V DC
18-75V DC
110-300V DC / 85-264V AC
4.5-9V DC
¨ Note: Single Channel units can be configured with
either the inner or outer bar. Specify when ordering.
TERMINAL CONNECTIONS
Inner Channel
Outer Channel
1
2
2
PWR
1
PWR
WHEN
EXCITATION
POWER
IS ORDERED
THIS
PINOUT
APPLIES
1
1
INPUT
VOLTAGE / CURRENT
(1) Return Side (–)
(2) Hot Side (+)
2
2
4
TYPE
3
4
TYPE
3
(Either Channel)
5
"C"
5
"C"
6
7
8
2
3
10
COMM.
1
9
PWR
2
3
COM.
2
10
COMM.
1
9
1
8
HOT
7
RELAYS
6
RELAYS
RTD
(1) – Source
(2) – Sense
(3) + Sense
(4) + Source
2
FREQ
1
1
2
2
1
1
Re Tx
2
Re Tx
INPUT
2
RTD/MAG
1 2 3 4
THERMO
4
1
INPUT
1 2 3 4
RTD/MAG
THERMO
24 VDC
11 12
3
2
FREQ
1
11 12
MAGNETIC PICKUP
(2) Lead 1 (–)
(3) Lead 2 (+)
THERMOCOUPLE
Provided w / flying lead and plug.
AC LINE FREQUENCY
(1) Hot Side (+)
(2) Return Side (–)
AC Inputs have 6/32" barrier lug
connections.
POWER
(1) Hot Side (+)
(2) Return Side (–)
COMMUNICATIONS
(1) Transmit (2) Common
(3) Receive
EXCITATION POWER
(1) VAC (hot side)
(2) VAC (common)
(3) 24 VDC +
(4) 24 VDC –
RELAY CONTACTS
(1) Hi/Hi N.O.
(2) Hi/Hi C.
(3) Hi/Hi N.C.
(4) Hi N.O.
(5) Hi Com.
(6) Hi N.C.
(7) Lo N.O.
(8) Lo Com.
(9) Lo N.C.
(10) Lo/Lo N.O.
(11) Lo/Lo Com. (12) Lo/Lo N.C.
N.O.= Normally Open
N.C.= Normally Closed
Com.= Common
9/28/12
40
Bowmar Series
Single Edgewise BarGraphs
100
80
60
100
40
20
80
The Weschler Bowmar Series Single Edgewise BarGraphs
feature bright, easy-reading 3" to 10" LED bars for OEM and
process applications. The Bowmar Series offer 51 or 101
segment bar displays with 2% or 1% resolution. Choose from
red, green or amber LEDs on most larger models. Colors can
also be mixed within the bar to provide permanent indication
zones. A rear panel low/high brightness selection terminal
changes the LED intensity for operator and control room conditions. Standard white on black or custom black on white scales
can be provided. Expanded scales can also be ordered to view
the most important part of a measurement in greater detail.
60
40
0
TM
20
Screw terminal connectors are standard on the APM series.
Connections to the BG series are made to a rear panel card edge
connector.
Front panel, mounting and performance are
identical in both series.
APM-500
0
Bowmar
100
APM-100
90
The Bowmar BarGraph instruments accept DC process inputs,
either voltage or current. Other BarGraph models can be
configured for a wide variety of input signals. Retrofit sizes are
available for most panel and switchboard meters in use today.
These instruments satisfy the high quality standards set forth by
the utility, OEM and process control industries.
80
FEATURES
70
100
51 or 101 segment LED bar array
60
80
Red, green, yellow, blue, white or
mixed color bar
50
Selectable LED brightness
60
40
DC inputs to 10A and 100V
Differential input
30
40
Harsh environment enclosures
20
20
10
0
0
Bowmar
Bowmar
APM-800
41
with MX option
APM-600
WESCHLER
INSTRUMENTS
DIVISION OF HUGHES CORPORATION
16900 FOLTZ PARKWAY - CLEVELAND, OH 44149
Phone: (440) 238-2550 - Fax: (440) 238-0660
www.weschler.com e-mail: sales@weschler.com
SPECIFICATIONS
Bar Display
APM500, APM600, BG600
51 segment LED plus underrange
and overrange
5" display
Humidity
0 to 95% RH, non-condensing
Over-range
250% of input
Weight
6 to 27 oz.
Display Modes
Bar and Point
APM100, BG100
101 segment LED plus underrange
and overrange
3" display
Calibration
NIST traceable factory calibration.
Some models may be field adjusted
+ 20% at Zero and Full Scale
Power Supply Sensitivity
+ 0.1%/volt maximum
APM800, BG800
100 segment LED plus underrange
and overrange
10" display
Power Requirement
5VDC + 0.25V, 400mA typical
Input Type
DC Volts
DC Amps
50mV to 100V
10mV to 10A
Input Impedance
>100kohms typical, 50mV current
shunt for most ammeters
Linearity
0
0.5% (from 0 to 50 C)
Response Time
25msec full scale, damping to 1sec
available
Gain Temperature Coefficient
0
+ 0.015%/ C maximum
Input Bias Current
100 nA typical
Common Mode Rejection
60dB typical
Standard Scales
0-10
0-50
0-100
-10/0/+10
-50/0/+50
-100/0/+100
Available with % signs
Over 2300 scales available
Zero Temperature Coefficient
0
+ 0.01%/ C maximum
Temperature
0
Operation
0 to 50 C
0
Storage
-60 to 71 C
Under-range
150% of input
Shock
to 8.5 G's
OPTIONS MATRIX GUIDE
BG SERIES
Option Code
100
600
DESCRIPTION
G
T
Z
Gr
F
S
MX
YL
BL
WH
UN
X
Custom Input Range
Screw-Terminal Barrier Strip
Bezel
Green Display
Increased Damping
Library Scale (Scale #)
Mixed Display (Red, Green, Yellow)
Yellow Display
Blue Display
White Display
Sunlight Readable
Drip Proof Bezel
= Available
APM SERIES
Option Code
F
G
Z
X
P
Gr
YL
MX
BL
WH
UN
S
= Available
100
150
500
600
800
-
-
-
-
-
-
-
-
-
-
-
-
-
DESCRIPTION
Increased Damping
Custom Input Range
Black Metal Bezel
Drip Proof Bezel
Red Filter
Green Display
Yellow Display
Mixed Display (Red, Green, Yellow)
Blue Display
White Display
Sunlight Readable
Library Scales (Scale #)
42
ORDERING GUIDE
SAMPLE PART NUMBER
A P M 1
0
0
V V 0
(SEE BOTTOM OF PAGE FOR EXAMPLE)
1
0
S 1
PART NUMBER
TYPE:
APM1
APM5
APM6
APM8
BG1
BG6
=
=
=
=
=
=
3" LED BarGraph
5" LED BarGraph, with bezel
5" LED BarGraph
10" LED BarGraph
3" LED BarGraph
5" LED BarGraph
INPUT TYPE:
00 = DC
50 = Center Zero (APM only)
INPUT SENSITIVITY:
VV = Volts
MV = Millivolts
AA = Amps
MA = Milliamps
UA = Microamps
INPUT LEVEL:
Example 4/20, 10, 150
Indicate Full Scale Value
SCALE NUMBER:
(Consult factory for exact need)
VERTICAL
HORIZONTAL
S12
S13
S8
S11
S3
S1
S3%
S1%
S136
S137
S113
S112
S4
S2
S242
S10
Sbnk
Sbnk
SH
SH
RANGE
0-10
0-50
0-100
0-100%
-10, 0, +10
-50, 0, +50
-100, 0, +100
Tick Marks Only
Blank
Custom Artwork
OPTIONS:
If more than one option is required, continue placing each
respective option letter after each other.
See Options Matrix Guide on previous page or consult factory.
ACCESSORIES:
ACC-001 Card Edge Connectors (BG/BGD)
ACC-002 Screw Type Barrier Strip (BG/BGD)
EXAMPLE:
A P M 1
0
0
V
V 0
1
0
S
1
(APM1) 3" LED BarGraph, (00) DC input, (VV) Volts input sensitivity,
(010) 0-10 input level, (S1) 0-100 horizontal scale.
43
DIMENSIONS
APM 800
APM 100
Card Edge - BG100
Studs - APM100
0.140 dia
2 holes
for 4-40 screws
4.49
4.49
4.125
3.77
3.83
0.155
3.270
3.65
3.85
0.618
FRONT VIEW
SIDE VIEW
4.150
0.58
PANEL CUTOUT
APM 500
Front Mount
Rear Mount
FRONT VIEW
FRONT VIEW
SIDE VIEW
PANEL CUTOUT
PANEL CUTOUT
APM 600
BGD 100
SIDE VIEW
FRONT VIEW
SIDE VIEW
PANEL CUTOUT
2/22/14
Options and features vary by model. Contact
factory for details and latest specifications.
WESCHLER
INSTRUMENTS
DIVISION OF HUGHES CORPORATION
16900 FOLTZ PARKWAY - CLEVELAND, OH 44149
Phone: (440) 238-2550 - Fax: (440) 238-0660
www.weschler.com e-mail: sales@weschler.com
44
WESCHLER
INSTRUMENTS
DIVISION OF HUGHES CORPORATION
TriColor BarGraph
Gate Position Indicator
FEATURES
!
!
!
!
!
BG241 GPI with optional Trend & Alarm functions. Green bar
indicates gate position. Yellow bar indicates gate limit. Single
illuminated segment shows the adjustable alarm level.
S
P
E
C
I
F
I
C
A
T
I
O
N
S
45
Bar Display
50 segment LED, 2% resolution
0
BG-241
285
BG-261/281
2700
Digital Display
5 digit
Resolution
BG-241
BG-261/281
-9999 to 20000
0.01% of full scale
0.4" high (10.16mm)
0.8" high (20.32mm)
Simultaneous Position & Limit Display
Bright 50 Segment TriColor Bar
Volt or mA Inputs
Optional Alarm Relay Outputs
Rugged Metal Case
The Weschler TriColor BarGraph Gate Position
Indicator (GPI) provides a rapid visual display of
gate position and gate limit. The GPI also gives a
precise digital readout of either signal or their
difference. Bar colors for position and limit are
user selectable (red, green or yellow). Overlap
defaults to the third color. Two relay outputs are
available. One is tied to the gate limit value. The
second is user adjustable and indicated by front
panel annunciators. Optional trend LEDs show
the direction of gate movement.
A rugged metal case is standard on the Weschler
GPI. An optional splash-proof bezel provides
additional environmental protection.
Analog
retransmit of the gate position is available for
connection to SCADA systems. Units can be
ordered with custom dial scales and legends.
Differential DC Input
Accuracy
0.3% of full scale
Input Overload 200%
Impedance
2MW for DCV
250W for 4-20mA
Response Time <600ms, zero to full scale
Temperature
Operation
Storage
00 to 500C, <95% RH
(non-condensing)
-400 to 850C
Setpoints
2 SPDT (form C) relays. NO contact 5A
resistive @250V AC or 28V DC. NC contact
3A resistive @250V AC or 28V DC.
Hysteresis 0.00-10.00% FS or latching.
Time Delay 0-10 sec.
Power
120, 240V AC (13VA)
12, 24, 28, 48, 125, 250V DC (8W)
Bar changes color when gate position exceeds limit. UP button
toggles digital display between position, limit & delta. Example
of a custom dial shown here.
Phone: 440-238-2550 Fax: 440-238-0660 www.weschler.com
e-mail: sales@weschler.com
ORDERING GUIDE
B
PART NUMBER
X X
T
T = TriColor bar
TYPE:
4 = BG241
6 = BG261
8 = BG281
MISCELLANEOUS OPTIONS:
A = Analog Backplate
K = Conformal Coating
T = Terminal Strip Connector
A = Custom Artwork
Y = Spraytight Face
4½" Square BarGraph
8½" Square BarGraph
8" Circular BarGraph
BAR ZERO POINT:
B = Zero at Bottom
DIGITAL DISPLAY:
R = Red
Y = Yellow
G = Green
S = Special
SETPOINT RELAYS:
2 = 2 Relays
X = No relays
S = Special order
INPUT (both channels):
GP1 = 0-10V DC
GP2 = 4-20mA DC
GP3 = 0-1mA DC
4
B Y 2
=
=
Trend Indicators
No Trend Indicators
X
=
NA
X
=
NA
RETRANSMIT:
C = 1-5V DC
D = 0-1V DC
F = 4-20mA DC
G = 0-1mA
X = None
SETPOINT HYSTERESIS:
P = Programmable
S = Special
EXAMPLE:
T
X
P G P 1
1
F
X X T T
POWER:
1 = 120V AC ±15% 50/60Hz
2 = 240V AC ±15% 50/60Hz
4 = 12V DC ±10% *
6 = 250VDC ±10%
7 = 24V DC ±10%
8 = 28V DC ±10%
9 = 48V DC ±10%
U = 110-250V DC / 85-264V AC, 50-440Hz
T
(4) BG-241, (B) zero at bottom, (Y) Yellow, (2) 2 relays,
(P) Programmable hysteresis, (GP1) 0-10V DC input,
(1) 120V AC 50/60Hz power, (F) 4-20 mADC isolated retransmit,
(X), (X), (T) trend indication, (T) terminal strip connector,
(T) TriColor
*Max ambient 45°C
DIMENSIONS & CONNECTIONS
5.6", 142mm
w/ mating connector
5.25"
133.4mm
4.43”
112.5mm
5/16" DIA. (X4)
7.9mm
0.69"
17.45mm
1.687"
42.85mm
1.687"
42.85mm
Form C RELAYS
1 2 3 4 5 6
3.96"
100.58mm
4.43”
112.5mm
1/4-28 x 5/8"
studs
NO C NC NO C NC
ReTx LIMIT ALARM
PWR
POSITION INPUT
LIMIT INPUT
BG241
FRONT VIEW
BG241
SIDE VIEW
See BGTC Circular Data Sheet for dimensions of BG261 and BG281
1.687"
42.85mm
1.687"
42.85mm
4.0" DIA.
101.6mm
PANEL CUTOUT
(for BG241 and BG261)
6/1/10
WESCHLER
INSTRUMENTS
DIVISION OF HUGHES CORPORATION
16900 FOLTZ PARKWAY - CLEVELAND, OH 44149
Phone: (440) 238-2550 - Fax: (440) 238-0660
www.weschler.com e-mail: sales@weschler.com
46
WESCHLER INSTRUMENTS BG Series BarGraph Input Level Matrix Guide
NOTE: If full scale level is not listed, use next highest full scale value.
Example: Input Type = A (DC volts), input level required = 7 volts. Use
code AW and list 0 to 7 volts.
Full scale reading available for the indicated input type.
External resistor required.
Input Type Selections
CONTACT
FACTORY
FOR
AC
POWER
INPUTS
-0.25
* Thermocouple temperatures are listed in ° C; minimum span 100 °C or 180 ° F.
47
Enter this 2 character code for Input Level in part number
Special Configurations
In addition to the many configuration choices shown on our ordering guides, Weschler can
customize Bargraph meters for special situations. Here are several modifications that are
now available as standard options:
Super Bright Display
Standard Brightness
(Control Room)
Super Bright
(Sunlight Readable)
A super bright display is now available on larger size circular
BarGraph meters. With 5 times the luminous intensity of the
standard bar display, this option is ideal for use outdoors or in
other highly lit areas. In wet environments, it can be combined
with the spray-tight cover option. The super bright display is
available on Weschler BG251 (5" circular), BG281 (8" circular)
and BG261 (8.5" square) meters. A super bright yellow bar can
also be specified.
Shipboard Bargraph Meters
These meters meet the requirement for a highly visible
readout in harsh shipboard environments. They are available
in the standard 4½" switchboard size and the large 8¾" size
viewable from more than 30 feet. Both versions feature a
rugged metal case, spray tight front/rear and shock resistant
internal construction. These units are also suitable for use in
pump rooms, drilling platforms and other wet or high shock
locations.
Three front panel buttons access setup and operating
functions. Brightness is easily adjusted for day or night
viewing. The digital readout is available in red, yellow or
green. The bar can be ordered in red, yellow, green or tricolor.
Custom scale factor, markings and legend tailor the readout to
the application.
Analog Backplate
The standard backplate on Weschler bargraph meters has
plug-in terminals for all connections. For more secure wire
attachment, a terminal strip option on the circular meters is
available. This option changes the input, power and some of
the other connections to screw terminals. A third termination
option on certain circular bargraph models is the analog
backplate. Here all connections are made to threaded studs.
This is particularly useful when replacing an old Westinghouse
style analog meter.
Draft Gauge Array
Large BarGraph models such as the BD101 easily replace old
analog draft gauges. Weschler can install meters in a housing
to match an existing panel arrangement.
In some
arrangements, the individual meter cases are omitted to
reduce the spacing between channels. Here the front panel
is tilted to duplicate the existing gauges' viewing angle.
Pressure transducers can be mounted on the rear of the
enclosure or located close to the pressure source. The photo
shows a 10 bay unit. Sizes for 3 to 14 gauges are available.
Weschler can also install meters in fiberglass enclosures for
indoor or outdoor applications.
48
Bargraph & Panel Meter Accessories
Weschler carries a variety of accessories for use with Bargraph and digital panel meters. Select a transducer,
sensor or signal conditioner to meet your measurement requirements. Then configure the digital meter with the
matching input type and range.
DC Current Shunts
weschler.com/shunt
Sizes from 1 amp to 10,000 amps.
50 or 100 mV output.
AC Current Transformers
weschler.com/CT
Window diameters from 1 inch to more than 8 inches.
Primary from 50 to 5,000 amps.
5 amp secondary standard, 1 amp available.
Burden 1.5 to 200 VA.
Solid core, split core or flexible core styles.
Variety of mountings.
Voltage (Potential) Transformers
weschler.com/PT
120V AC ouput.
Burden to 150 VA.
Inputs to 600V standard, higher available.
AC Current Transducers
weschler.com/transducer
Input 2 - 2000 amps full scale.
DC Output 0-5V, 0-10V or 4-20mA.
Average or TRMS sensing.
Solid and split core styles.
Self-powered, loop powered or externally powered.
Transducers
weschler.com/transducer
Output 4-20mA or 0-1mA for easy interface to a meter.
Input:
DC Volts
AC Watts
AC Voltage
AC VAR
AC Current
Power Factor
AC Line Frequency
Phase Angle
Single phase 2 or 3 wire, three phase 3 or 4 wire.
Signal Conditioners
Wide selection of input types.
Single or multi-function.
Fixed or adjustable range.
DIN rail or plug-in socket mounting.
weschler.com/signal
Sensors
see weschler.com/sensor for detailed information
Temperature
Thermocouple
Infrared Non-Contact
Type J, K, E, T or N
Bendable sheath, diameter 1/16" to 3/8"
Sheath length and cable length to order.
Standard or miniature thermocouple plug.
Sensing to 500°C (900°F).
Fixed or adjustable emissivity.
4:1, 10:1 or 13:1 optics.
RTD
3 or 4 wire Pt100, 385 alpha
Bendable sheath, diameter 1/16" to 3/8"
Sheath length and cable length to order.
Pressure
Flow
Full scale 2 to 20,000 psig.
1/8" to 1/2" process connection.
0-10V, 0-5V or 4-20mA output.
Loop, DC or battery powered.
Optional local readout.
Differential pressure, thermal,
magneto-inductive or paddle
wheel sensing.
1 GPH to 600 GPM.
Pipe sizes to 3 inches.
Vibration
Level
Rugged PZT element.
1" /sec to 5" /sec full scale.
5-1500 Hz range
Stud mount
Detect solids or liquids.
Range up to 100 ft.
Radar or ultrasonic sensing.
Speed / Rotation
Tach generators to 100,000 RPM
Optical speed sensors to 250,000 RPM
Load
Compression or tension.
25 to 50,000 lb capacity.
Position, humidity and other types of sensors also available.
Test Instruments
Weschler also offers a selection of test equipment to
aid meter setup, maintenance and general electrical
troubleshooting. Well known brands provide years of
reliable operation.
See weschler.com/test
Shown here are the three most common test tools:
process calibrator, digital multimeter, clamp multimeter.
Weschler BarGraph Meters
DIGITAL PRECISION
VISUAL TREND INDICATION
LARGE BRIGHT DISPLAYS
TRANSDUCER INPUTS
RELAY OUTPUTS
ADJUSTABLE SETPOINTS
DIRECT REPLACEMENTS FOR ANALOG GAUGES
Measure and Display: DC/AC Volts, DC/AC Amps, Watts, VArs,
Power Factor, RPM, Frequency, Quadrature, Load, Strain, Pressure
Resistance, Temperature, pH and more......
TYPICAL APPLICATIONS
Power measurements
Pot line monitors
Control room displays
Gate position indicators
Process indicators
Turbine indicators
Shipboard engine monitors
Boiler draft gauges
Backup power supply status
Tank/drum level indicators
Display, control & backup for DCS systems
WESCHLER
INSTRUMENTS
Your Best Source for
Measurement, Control & Test Equipment
DIVISION OF HUGHES CORPORATION
70 Years of Power and Process Measurements
16900 Foltz Parkway, Cleveland OH 44149 w 440-238-2550 w Fax: 440-238-0660
www.weschler.com e-mail: sales@weschler.com
WD-01 3/14