B/W Controls
SERIES 41 SOLID STATE
ALARM SYSTEM
SECTION
8041
PAGE 1
VERSATILE NEW BIW ALARM SYSTEMS
DETECTS MOISTURE, LEAKS, HIGH LEVELS PLUS
MANY OTHER OFF-NORMAL CONDITIONS
..
tim .
•
FEATURING:
• General purpose or industrial and weatherproof enclosures
• Field-adjustable sensitivity from 1000 ohms to 1 megohm
• Low energy sensing circuit ideal for liquid level electrodes or pilot switches
• Field-adjustable time delay 0 to 23 sec. to eliminate false trips
• Ability to operate from remote sensors
IBIW Controls
SECTION
B/W Controls
8041
PAGE2
VERSATILE NEW ALARM DETECTS
MOISTURE, LEAKS AND HIGH
LEVELS, PLUS OFF-NORMAL CONDITIONS INVOLVING A WIDE VARIETY
OF PROCESS VARIABLES AND BUILDING SECURITY APPLICATIONS
BIW Series 41 Solid-State Alarm Systems are
designed to provide new versatility, safety and
reliability in monitoring and detecting off-normal
conditions in a broad range of industrial , commercial and institutional applications.
Key feature of the system is its low energy adjustable sensing circuit which assures reliable
operation from electrodes contacting conductive liquids or from contact-type pilot devices
such as flow, float , pressure and limit switches ,
thermostats and pushbutton actuators, etc.
As a result, the system can be used to detect
moisture or leaks in mines, underground communication networks , boat bilges, computer
rooms, libraries, archives and record storage
areas. It is also ideal for monitoring dangerous
high level conditions in storage tanks, cooling
towers, storm drain sumps, septic tanks, sewer
systems, lakes, streams, and other locations
requiring detection of overflow or flooding .
In addition, because Series 41 Alarms will also
operate from contact-type pilot devices, they
are equally suitable for use in monitoring process variables such as temperature, pressure,
flow, humidity, voltage and current, etc., as well
as building security and fire detection alarms.
Installation is quick and easy with saddle clamp
barrier terminal blocks for 12 to 18 gauge wire,
or ring terminal connections to field wiring .
BASIC SPECIFICATIONS:
OPERATING FEATURES AND
ADVANTAGES
BIW Series 41 Alarm Systems also provide
field-adjustable sensitivity from 1000 ohms up
to 1 megohm to assure reliable operation over
long distances and in detecting leaks or high
levels of a wide variety of conductive liquids. A
field-adjustable time-delay is also provided to
eliminate false trips due to liquid turbulence or
electrical transients. The alarm action does not
start until the time delay is completed.
Other features include : A SPOT auxiliary relay
which has its coil energized when the process
condition is normal so that its contact can be
used to provide fail-safe remote signal , alarm
or cut-off of pumps, valves, motors and other
operating equipment in the event of a component or power failure. A holding circuit which
permits operation over a range of levels or from
momentary contact switching devices. Illuminated SILENCE and TEST pushbuttons and
optional manual RESET button.
Voltage:
Standard : 115 volts ac- 50/ 60 hertz
Optional: 230 volts ac- 50/ 60 hertz.
24 volts. de.
Power Required:
• General Purpose Model
• Industrial & Weatherproof
with 6" Bell
with Horn
6VA
11 VA
15 VA
Contact Rating: Single pole, double throw ;
6 amperes resistive load at 120 volts ac.
Sensing Circuit: 24 volt de and 0.5 milliamperes maximum. Sensitivity field adjustable
from 1000 ohms up to 1 megohm.
Time Delay: Adjustable from 0 to 23 seconds.
Pushbuttons: SILENCE and TEST buttons
are standard. RESET button is optional.
SINGLE ALARM PERFORMS
MULTIPLE FUNCTIONS
GENERAL PURPOSE MODEL
Regardless of usage, however, a single alarm
system may be applied with several electrodes
or pilot devices connected in parallel to provide
an audible alarm in the event a fault condition
occurs at one or more of the remote detection
points being monitored. Moreover, the low voltage and low current level of the sensing circuit
permits use of low cost small gauge unshielded
communication wires for long distance alarm
installations.
For indoor service in a steel enclosure with a
solid state audible alarm .
INDUSTRIAL & WEATHERPROOF
MODEL
For outdoor or indoor service in a fiberglass
enclosure and with choice of a horn or a 6 inch
bell.
DESCRIPTION OF OPERATION
STANDARD SEQUENCE is automatic reset with silence pushbutton and without lock-in , ISA designation A-1-4, with the extra feature of an adjustable time
delay after the fault condition occurs which delays the alarm action for the set time period . The auxiliary SPOT contact is a fail safe arrangement that follows
the alarm light status. The test pushbutton provides full operational test simulating an abnormal condition.
MANUAL RESET SEQUENCE operates the same as the standard sequence except that a momentary fault condition will lock-in the alarm status until the
condition returns to normal, and the reset pushbutton is operated. The ISA sequence designation is M-1 .
SEQUENCE TABLE
Line
1
2
3
4
Process
Condition
Normal
Normal
Normal
Abnormal
Sensing
Circuit
Status
Open
Open
Open
Closed
5
6
Abnormal
Normal
Closed
Open
Operation for
Manual Reset
Push Button Model
6A
Abnormal
Closed
68
Normal
Open
Operator Push Button Action
Test
Silence
•Reset
Alarm Status
Light
Off
Off
Flashing
Flashing
Push
On
Off
Push
On
On
A
Closed
Open
Closed
Closed
B
Open
Closed
Open
Open
Silent
Silent
Closed
Open
Open
Closed
Audible
Silent
Silent
This option will lock-in a momentary abnormal condition
at the status of line 4. After the condition returns
to NORMAL, an operator action is required to reset alarm
status. Line 6 is replaced by the following action .
Push
Flashing
On
IBIW Controls
Push
Off
Contact
Status
Silent
Remarks
Line voltage - off
Line voltage - on
Status goes to Line 4
Alarm occurs after
time delay which is
adjustable 0-23 seconds
Automatic Reset
Abnormal condition
is locked-in
Closed
Open
Open
Closed
Status goes to Line 4
and must silence again
I
CATALOG
PAGE
79
SECTION
B/W Controls
8041
PAGE3
TYPICAL APPLICATIONS
I
Diagrams below illustrate basic details of
typical installations ir1 wh ich Series 41
Alarm Systems are used to monitor and
detect any off-normal conditions in applications involving the control of liquids and
various common in-process variables.
~
•
•••
J
...
SUGGESTED CONTROL SETTINGS
OPERATION FROM ELECTRODES
Sensitivity: Set to a value greater than
the specific resistance of the liquid to be
controlled .
Diagram A - High Level Alarm
or Leak Detection System
Diagram B - High Level Alarm or Leak Detection
System with Automatic Reset Electrode
~=-JuMPER-- -l
~-JUMPER-REMOVED]
Time Delay: Normally 0-2 second or just
long enough to prevent nuisance alarms
resulting from wave action of the liquid.
In Diagram A, the system consists of one
electrode set at the predetermined danger
level and a second common electrode set
at the same or a slightly lower level to
complete the sensing circuit. In Diagram
B, the jumper is removed from terminal
block and a third reset electrode is used.
The alarm will then go off automatically
when liquid falls below the reset electrode. Diagram C is essentially the same
except a normally-closed pushbutton is
used to lock in alarm instead of a reset
electrode. In Diagram D, a good ground
return to the liquid is used to complete the
sensing circuit instead of a common electrode .
~----- --pi /
SENSING CIRCUIT
TERMINAL STRIP
ELECTRODE HOLDER
ALARM ON ABOVE THIS LEVEL
ALARM OFF BELOW THIS LEVEL
COMMON
ELECTRODE
~===-=--=--=-~-~ 1 A~:~T~~DE HOLDER
SENSING CIRCUIT
TERMINAL STRIP
ABOVE THIS LEVEL
COMMON
ELECTRODE
Diagram C - High Level Alarm or Leak Detection
System with Lock-In and Reset Pushbutton
El
r
I
RESET
1
I PUSHBUTTON I
/
---------1
L - ~ - _j
SENSING CIRCUIT
I ~ ELECTRODE HOLDER
- JUMPER
-,
ELECTRODE HOLDER
ALARM ON
ABOVE THIS LEVEL •
COMMON ELECTRODE
TERMINAL STRIP
• Alarm wi ll lock in until level falls below electrode and reset button
is operated.
ALARM OFF
BELOW THIS LEVEL
Diagram D - High Level Alarm Operated from
Ground Return instead of Common Electrode
-J"l!MP"Efl FiENioVEo - - ~
~~;~-:~Lt -
I
~
l
ALARM ON
ABOVE THIS LEVEL
ALARM OFF
BELOW THIS LEVEL
-:!:L_ AGOOD I
DEPENDABLE
ROUND RETURN I _[
TO THE LIQUID IS I =- .___ ___J
REQUIRED L...J
SENSING CIRCUIT TERMINAL STRIP
OPERATION FROM PILOT SWITCHES
SUGGESTED CONTROL SETTINGS
Sensitivity: Normally set at minimum of
1000 ohm except when operating from a
resistance transducer.
Diagram E - Hi!;Jh Level Alarm System
Operated from B fW Unifloat®
Diagram F - Process Alarm with Remote Pilot
Switch Actuated by Off - Normal Conditions•
- -- ---~~R~~~WHEN CONTACT IS OPEN
- JUMPER
_1.. CONTACT OF
, - PILOT DEVICE
Time Delay: Normally 0-1 second or just
long enough to prevent nuisance trips.
In Diagram E, the Series 41 Alarm is used
with a BIW Unifloat multiple switch level
sensing assembly which can be applied to
control any non-conductive or conductive
liquid. In Diagram F, a remote pilot device
is used to actuate the alarm in event of
off-normal conditions such as temperature, smoke , pressure, flow, proximity, etc.
Diagram G is similar except jumper at
terminal block is removed and a normally
closed pushbutton is used to lock in
alarm . In Diagram H, a transducer that
lowers resistance is used to sense any
off-normal condition and trip the alarm .
IBIW Controls
---L
·common wire may be omitted if Term inal 6 is grounded.
Diagram G - Security or Fire Alarm Operated
from Pilot Device with Lock-In and Reset Button
-
ALARMON-W~EN CONTACT IS CLOSED
SENSING CIRCUIT TERMINAL STRIP
•o ff-normal conditions may be temperature, smoke, pressure,
humidity, flow, proximity, counter, voltage, current depending on
type of pilot device used.
Diagram H - System with Device that Reduces
Resistance when Actuated by Fault Condition
~~@(~(~~~OVED- -~CONTACT OF
1:@:----: ---~- -- _j
LJ
NC MANUAL I
RESET
I
PUSHBUTTON I
L_~
--f.3!-rnPHOTO CELL
1
PILOT DEVICE•
.=JuMPER - - - - -
ALARM ON WHEN
CONTACT CLOSES
---------
_ _j
SENSING CIRCUIT TERMINAL STRIP
•Alarm will lock-in until contact of pilot device opens and reset
button operated .
L
I OR MOISTURE
DETECTOR ETc.•
SENSING CIRCUIT TERMINAL STRIP
*Alarm sounds when sensing circuit resistance drops below sen sitivity set point.
SECTION
B/W Controls
8041
PAGE4
GENERAL PURPOSE MODEL
DIMENSIONS
WIRING DIAGRAM
ADJUSTABLE SENSITIVITY
1000 OHMS TO 1 MEGOHM
ADJUSTABLE TIME-DELAY
0 to 23 SECONDS
AUDIBLE ALARM
ELECTRONIC TYPE
73db
,
------H } SENSING CIRCUIT
24 VOLTS DC AND
e o----- - - - 0.5 MA MAXIMUM
SILENCE PUSHBUTTON
WITH RED LIGHT
f!·~~~r=::-- ~b~~~ING
Ill
rm
HOLES
PADLOCK-TYPE
DRAW PULL CATCH
10.00 9.00 8.00
I.>----+- - BARRIER-TYPE
TERMINAL STRIPS
TEST PUSHBUTTON
WITH GREEN LIGHT
AUXILIARY CONTACTS - A & B
1" &1114"
KNOCKOUTS
AUXILIARY RELAY CONTACT
OPERATION IN EVENT OF ALARM
OR POWER OR RELAY FAILURE
CONTACT"' A" CLOSES
t____
l.~- ~-~- ~- ~
i : ' '
·-- ~~!'!'!«!_A___ ) : i t._} LINE VOLTAGE
C
o_"!'!'~."-.J
·---~~'!ti'~!.!'I ____ .J ~--
115 VOLTS AC- 50/ 60 HERTZ
AND CONTACT " B" OPENS
The General Purpose Enclosure is made
of 16 ga. steel with gray baked enamel
finish and is intended for indoor applications.
INDUSTRIAL AND WEATHERPROOF MODEL
DIMENSIONS
WIRING DIAGRAM
ADJUSTABLE TIME DELAY
0 to 23 SECONDS
AUDIBLE ALARM
Horn - Grille type
,
Adjustable 70 to 103 db. 'I
Bell - 6 inch Gong
92 db. at 10 ft.
SILENCE PUSHBUTTON WITH RED LIGHT
H -
ADJUSTABLE SENSITIVITY
1000 OHMS TO 1 MEGOHM
- +} SENSING CIRCUIT
24 VOLTS DC AND
0.5 MA MAXIMUM
. - -
BARRIER-TYPE
TERMINAL STRIPS
-,
AUXILIARY CONTACTS
TEST PUSHBUTTON
WITH GREEN LIGHT
TRANSFORMER
llfl
-CIJ
~·
"il , (]
il 1
o
0
4 MOUNTING HOLES
.313 DIAMETER
OPTIONAL COVER SCREWS
FOR NEMA 4X RATING
o
I
r
BELL 7.75
HORN 7.06
The enclosure is molded fiberglass in
machine tool gray color with a closed cell
neoprene cover gasket. It is rated NEMA
12 oiltight and dust-tight, and also meets
NEMA 3 requirements for outdoor installation. The cover devices are watertight
industrial quality. The stainless steel
hinge and latch conform to NEMA 4X cor-
rosion resistance standards, however, in
order to meet the severe NEMA 4 watertight hose test, screw cover fasteners are
required rather than the luggage latch.
This option is available and if required
specify "NEMA 4X Watertight" when ordering.
IBIW Controls
I r~=======::::J
4.25
1.13
LUGGAGE LATCH WITH
PADLOCKING HASP
LY=='====="=--NO CONDUIT OPENINGS ARE PROVIDED. CONDUIT
HUBS ARE AVAILABLE FOR FIELD MOUNTING.
'CATALOG
PAGE
81
B/W Controls
SERIES 41 SOLID STATE
ALARM SYSTEM
SECTION
8041
PAGES
6012 AND 6013 BIW LEVEL SENSING ELECTRODE EQUIPMENT
PLASTIC ELECTRODE HOLDERS
CAST ELECTRODE HOLDERS
Flanged
Cast
Iron
Pressure nght
Ice Free
7014 UNIFLOAT®
• Switches continue to operate even
during power failure
• Simple level adjustment without
disturbing tank connection.
• Single float for up to 12 sensing levels
• Ideal in non-conductive liquids such
as gasoline, fuel oil and chemicals
• UL Recognized
• Encapsulated reed switches provide
dry contact for direct interface to
programmable controllers
• 2 in. or 3 in. Pressure-tight holder
Conduit
Flanged PVC
Molded
MOISTURE SENSOR
Pressure-Tight
2" or3" NPT
The moisture sensor is a compact, low cost device which can be easily attached with two
screws or with the adhesive provided. When
moisture bridges adjacent printed circuit paths on
the surface of the sensor, the Series 41 Alarm
System will provide an audio-visual indication
and isolated SPOT contacts for auxiliary control.
'iU
U.L. Recognized
Component
Low Level
Reed Switch
Float Stop
& Tube Seal
U.S. Patent No. 4,056,979
IBIW Controls
The BIW moisture sensor is ideal to detect water
under computer room floors, in communication
vaults, in archives, in below grade ductwork, on
floors in basements, storage areas or
equipment rooms.
BIW system of low voltage low current sensing
permits use of inexpensive field wiring between
sensor and alarm.
See Catalog Section 6013 for detailed information.
'CATALOG
PAGE
82
SECTION
SERIES 41 SOLID STATE
ALARM SYSTEM
8041
B/W Controls
PAGE6
Series 41 alarm system with the general
purpose enclosure and a reset button
shown with a conduit holder with wire
suspension electrodes.
Series 41 alarm system with the general
purpose enclosure shown with BIW Moisture Sensors.
Series 41 alarm system with the industrial
enclosure shown with a molded electrode
holder.
CATALOG NUMBERING SYSTEM AND LIST PRICES
SERIES 41 ALARM SYSTEM
WITH GENERAL PURPOSE NEMA 1 ENCLOSURE
DISCOUNT SCHEDULE LL 1
Prices Subject to Change Without Notice
8041--1200-L1 --------------------------R-------N1
~
I
CATALOG
SECTION
LINE VOLTAGE
a
I
L1
115 VAC 50/ 60Hz
L2
230 VAC 50/ 60 HZ
L3
24 VDC
LIST
PRICE
LIST
PRICE
OPTIONS
$188.88
$118:88
$IIi II
.....
X
None
No Addition
R
Reset
Button
Add
SERIES 41 ALARM SYSTEM
WITH INDUSTRIAL OR WEATHERPROOF ENCLOSURE
8041-1300--H----------R--------N3
I
CATALOG
SECTION
I
ALARM TYPE
LIST*
PRICE
Is
6" Bell 92db
$8118.111
IH
Horn 78-103db
eooum .
*For 115 VAC 50/60HZ line voltage
only. Contact factory for optional
230 VAC 50/60 HZ prices.
OPTIONS
lx
None
I R Reset
Button
I
LIST
PRICE
...
LIST
PRICE
ENCLOSURE
Ad~Wion
N3 Meets Nema 3
and Nema 12
Add
No
Addition
N4 Nema 4X
Watertight*
Add
~ ~
*See pg. 4 for enclosure
description.
CONDUIT HUBS LIST PRICES
PVC HUBS - WITH 0 RING SEAL
FOR PLASTIC CONDUIT
CONDUIT
SIZE
PART
NUMBER
Y2 Inch
04-297400
3!4
Inch
04-297200
LIST
PRICE
.....
ALUMINUM HUBS -
WITH GROUNDING SCREW
FOR METAL CONDUIT
CONDUIT
SIZE
PART
NUMBER
Y2 Inch
04-322400
Inch
04-263500
3/4
LIST
PRICE
......
...,.
Field installation is simple using standard electrician's hole saw or punch.
IBIW Controls
ICATALOG
PAGE
83
SECTION
B/W Controls
8040
PAGE4
BIW Signal and Alarm panels are available in many standard
packaged units designed for use in a wide range of high, low
and intermediate level alarm applications as well as for remote control signalling. Each contains the proper BIW level
sensing relays and operates from electrudes set at desired
alarm levels.
These panels can also be furnished with one or more BIW
pump control relays included in the package to perform any
desired level control function. Also these alarm systems can
be incorporated into any of the other control systems shown
in this catalog.
Contact us for assistance to meet your specific needs.
DISCOUNT SCHEDULE LL1
Prices Subject to Change Without Notice
Catalog Number Example
8040-SC1H-H-L1-N1----------1500-S7
ENCLOSURE
LISTPRI CE
ADDITI ON
N1
Nema 1
None
N4
Nema4
N12
RELAY
SENSITIVITY
Nema 12
LIST PRICE
ADDITION
LINE VOLTAGE
L1
115 Volt 50/60 Hz
L2
208-230 Volt 50/60 Hz
S1-S11
Select from Chart
Sec. 1500 pg. 9
None
LF1,HF2
Select from Chart
Section 5200 Page 5
None
LV1-2
HV3-4-5
Select from Chart
Section 5200 Page 5
v
.....
Select from Chart
Section 5300 Page 5
F1-F8
None
RELAY TYPE
OPTIONAL FEATURES
NUMBER OF
ELECTRODES
SV1H
X
None
H
Horn instead of Bell
0
Include additional relay
for control functions.
Specify details
TYPE OF OPERATION
LIST PRICE
ADDITION
1500
Induction Type 1500
.......
5200-L
Series 52-low sensitivity
5200-H
Series 52-high sensitivity
5300-S
Series 53-1 0 amp contacts
Consult
Factory
5300-P
Series 53-25 amp contacts
None
,.......
......
None
LIST PRICE
ADDITION
.......
........
.......
........
None
LIST PRICE
2
High Level Signal
$ .....
2
Low Level Signal
$ -
3
High and Low Level Signal
$ Willi
VISUAL SIGNALS
AND ALARMS
4
Three Level Signals
$. _
5
Four Level Signals
6
Five Level Signals
"' Ill II
$ 1111111
2
High Level Alarm
$~
2
Low Level Alarm
s. . -
AUDIBLE SIGNALS
AND ALARMS
3
High and Low Level Alarm
$ 411111
*Bell
2
High Level Alarm
s-...
2
Low Level Alarm
$ ....
0
Operates from single pole
pivot device to indicate any
off-normal condition
$. . . . .
SC1H
2
High Level Signal and Alarm
SC1L
2
Low Level Signal and Alarm
$ .......
$ ........
SC2
3
High and Low Signal and Alarm
s...-.
SC3
4
High and Low Signal and Alarm
Intermediate Level Signal
II
NOTE : A common electrode is included and it may be omitted if a dependable ground return connection to the liquid is
provided by other means.
I BIW Controls
LISTPRIC E
ADDITION
Signal Lights Only
or Horn Only
*Bell or Horn with Two-Position
Manual Reset Silence Switch
COMBINATION VISUAL
AND AUDIBLE SIGNALS
AND ALARMS
Signal Lights
*Bell or Horn,
Pushbutton Silence Switch
Automatic Reset
*Bell with 4 inch gong is standard
85 db. at 10ft.
Horn is optional
Adjustable 70 to 103 db.
CA:;~~·Ii