PRESSURE TRANSDUCERS
Keeping pressure
under control
AN ISO 9000 COMPANY
Pressure Transducers
Bailey & Mackey have been manufacturing
high quality pressure instruments for over 75 years. The
product range has been extended over this period and we
now manufacture Pressure Gauges, Temperature Gauges,
Pressure Switches and Pressure Transducers.
Our products satisfy most pressure and temperature
sensing applications in many industrial markets including,
Aerospace, Automotive, Chemical, Marine,
Medical, Water, Waste, Fire, Food, Heating and
Ventilating, and General Industries. In fact we have
products which cover almost every pressure
sensing application.
Expertise in pressure sensing technology
enables us to manufacture to the highest standard of
quality and reliability.
Our quality management system, which is
approved by B. S. I. Quality assurance to BS EN 9001,
ensures that all products have been correctly assembled
and tested prior to despatch to our customers.
Bailey & Mackey aims to lead its chosen
sectors of the Pressure Gauge, Temperature
Gauge, Pressure Switch and Pressure
Transducer Industry through excellence in
customer service and product quality.
Bailey & Mackey –
Pressure control experience and
innovation for over 75 years
Pressure Transducers
Contents
Type
Bailey & Mackey pressure transducers
are divided into two groups each being based on a
different measuring technology.
The first group are:
Piezo-Resistive Transducers which use the
481 482
Description
Page
Piezo-Resistive Transducers
2
0–10V & 4–20 mA output devices
Mono Pressures from vacuum to 20 bar
Piezo-Resistive d.p. Transducers
4
0–10V & 4–20mA output devices
Differential Pressures from vacuum to 10 bar
voltage that is generated when a semi-conductor
beam is deflected by an applied pressure, this
voltage is then amplified which in turn gives a voltage
or milli-amp output.
2200 & 2600
0–10V & 4–20 mA output devices
Mono Pressures from vacuum to 200 bar
Gauge & Absolute
These devices give greater accuracies than the
Hall Effect devices and we manufacture this type of
transducer from ±0.1% to ±0.5% depending on the
application.
Diaphragm seal, High temperature
and Flange mounted versions
11
Hall Effect Transducers
12
The second group are:
Hall Effect Transducers which uses a magnet
and a flux strength device to measure the deflection
of a diaphragm under pressure and give an analogue
signal to an amplifier which in turn gives a voltage or
milli-amp output.
4000
4000
Piezo-Resistive Transducers
0–10V & 4–20 mA output devices
Mono Pressures from vacuum to 25 bar
Hall Effect d.p. Transducers
4101
Potentiometric Transducers
Voltage output device Mono Pressures
from 25 bar to 700 bar
Both types of transducer outlined above have CE
marked versions to EN 50081 & EN 50082 for EMC
emission and immunity.
73PT
Corrosion resistant materials are available for both
the Hall Effect and the Piezo-resistive types to enable
them to be used on most fluids.
70PT
14
0–10V & 4–20 mA output devices
Differential Pressures from vacuum to 25 bar
These devices are low cost and have a similar
accuracy to a pressure gauge.
6
Potentiometric Transducers
16
17
Voltage & current output devices
Mono Pressures from vacuum to 600 bar
Potentiometric Transducers
18
Voltage & current output devices
Mono Pressures from 2.5 bar to 40 bar
Bailey & Mackey Transducers can be
modified to make them more suitable for the
application on which they are to be used, please
contact our sales office for further assistance.
No maintenance is required with the pressure
transducers in this catalogue but periodic calibration
checks should be made and any re-calibration
adjustments made to ensure optimum performance.
A range of instruments calibrated to correspond with
the pressure transducers are also illustrated in this
catalogue.
69PT
Potentiometric d.p.Transducers
19
Voltage & current output devices
Differential Pressures from 2.5 bar to 6 bar
Displays & Power Supplies
20
Chemical Compatibilities
24
Installation Instructions &
Conversion Factors
25
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1
Series 400
Pressure Transducers
This series of miniature pressure
transducers have a piezo-resistive
sensor and a unique conductive seal
that eliminates internal wire bonding
thus enhancing reliability. Zero and full
scale adjusters are provided under the
top cover. They are ideal for use in areas
requiring exact pressure measurement. low
hysteresis and long term stability. For all
applications where air. oil or water is to
be monitored.
Features
5Piezo-resistive sensor
5Ranges from full vacuum to 20 bar
5Type 481A for 12/24V d.c. input,
4-20mA output
5Type 481B for 24V a.c/d.c. input,
0-10V d.c. output
5Supplied with 1 M flying lead
5Pressure connection 1/4” bsp
parallel male brass
5CE marked to EN 61000-6-2
5Complete with mounting bracket
5Enclosure rating IP65
5Weight 350 grams
Mechanical
Specifications
Electrical
Specifications
Pressures
Performance
Type 481A
Pressure Ranges0 to 35 mbar
0 to 70 mbar
0 to 350 mbar
0 to 1 bar
0 to 2 bar
0 to 7 bar
0 to 17 bar
Accuracy0.25% FS
Input12 to 24V d.c.
Repeatability0.2% FS/Year typical
Output4 to 20mA (2 wire)
Thermal Error0.026% FS/°C from
20°C
Type 481B
Temperature Range-20 to +80°C
Input24V a.c./d.c.
Intermediate ranges to suit application.
Mechanical Configurations
Output0 to 10V d.c. (3 wire)
Proof Pressure1.5 x FS
Pressure Connection1/4” bsp male brass
These transducers must be adequately
earthed to meet EN 61000-6-2.
Wetted PartsCompatible with air,
water and oil.
2
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14.0
30
2 x Ø4.20
14.0
2 x Ø4.20
Pressure
Transducers
4.0
(32.0)
(22.0)
4.0
24
(22.0)
14.0 A/F
(TYP.)
11.0
24
Series 400
(32.0) (12.7) 14.0 A/F
(TYP.)
G1/4
(23.7)
DIMENSIONS
11.0
G1/4
WALL
FIXING
BRACKET
Ø44
Ø40
Ø44.5
Ø44.5
Ø40.0
Ø40.0
14.0 A/F
(TYP.)
14.0 A/F
(TYP.)
19
14.0
12.0
30
G1/8 30
2 x Ø4.20
14.0
4.0
G1/8
2 x Ø4.20
2 x Ø4.20
4.0
4.0
(32.0)
(32.0)
(22.0)
(22.0)
19
14.0
11.0
WALL
(22.0)
24
FIXING
BRACKET
14.0 A/F
G1/4
(TYP.)
(32.0) (12.7)
(12.7)
(23.7)
(23.7)
WALL
FIXING
BRACKET
WALL
FIXING
BRACKET
Ø44.5
Ø40.0
TYPICAL
WIRING DIAGRAMS
14.0 A/F
Electrical Connections
(TYP.)
19
Electrical Connections
Electrical Connections
Type 481A: mA Output
2 x Ø4.20
Electrical Connections
Type 481A: mA Output
14.0
12.0
Red +ve 12 Type
–3024V482A:
d.c. mA Output
Red +ve 12 – 24V d.c.
G1/8
WHITE OUTPUT 4 – 20mA
4.0 (EARTH)
DRAIN
(32.0)
(22.0)
Type 481B: Voltage Output
RED 24V a.c./d.c.
WHITE OUTPUT 0 – 10V
BLACK – COMMON
DRAIN (EARTH)
WHITE OUTPUT 4 – 20mA
Red +ve 12 – 24V
DRAIN (EARTH)
WHITE OUTPUT
(12.7)
WALL
DRAIN (EARTH)
Type 481B: Voltage Output
FIXING
BRACKET
(23.7)
RED 24V a.c./d.c.
Type 482B: Voltage Output
WHITE OUTPUT 0 – 10V
RED 24V a.c./d.c
BLACK – COMMON
WHITE OUTPUT
DRAIN (EARTH)
BLACK – COMM
DRAIN (EARTH)
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3
Series 400
Pressure Transducers
This series of miniature differential
pressure transducers have a piezoresistive sensor and a unique conductive
seal that eliminates internal wire bonding
thus enhancing reliability. Zero and full
scale adjusters are provided under the
top cover. They are ideal for use in areas
requiring exact pressure measurement, low
hysteresis and long term stability. For all
applications where air. oil or water is to
be monitored.
Features
5Piezo-resistive sensor
5Ranges from full vacuum to 20 bar
5Type 482A for 12/24V d.c. input,
4-20mA output
5Type 482B for 24V a.c/d.c. input,
0-10V d.c. output
5Supplied with 1 M flying lead
5Pressure connection 1/8” bsp
parallel female brass
5CE marked to EN 61000-6-2
5Complete with mounting bracket
5Enclosure rating IP65
5Weight 350 grams
Mechanical
Specifications
Pressures
Performance
Type 482A
Pressure Ranges0 to 35 mbar
0 to 70 mbar
0 to 350 mbar
0 to 1 bar
0 to 2 bar
0 to 7 bar
0 to 17 bar
Accuracy0.25% FS
Input12 to 24V d.c.
Repeatability0.2% FS/Year typical
Output4 to 20mA (2 wire)
Thermal Error0.026% FS/°C from
20°C
Type 482B
Temperature Range-20 to +80°C
Input24V a.c./d.c.
Intermediate ranges to suit application.
Mechanical Configurations
Output0 to 10V d.c. (3 wire)
Proof Pressure1.5 x FS
Out of Balance
Pressure1.5 x FS
Line Pressure34 bar G
4
Electrical
Specifications
Pressure Ports1/8” bsp female
brass
These transducers must be adequately
earthed to meet EN 61000-6-2.
Wetted PartsCompatible with air,
water and oil.
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30
4.014.0
11.0
0)
24
30
11.0
(12.7)
(12.7) Transducers
Pressure
2(32.0)
x Ø4.20
14.0 A/F
4.0
G1/4
(TYP.)
G1/4
(23.7)
WALL
(22.0)
FIXING
BRACKET
(32.0)
Series
400
(12.7)
11.0
WALL
24
FIXING
(23.7)
BRACKET
14.0 A/F
G1/4
(TYP.)
(23.7)
DIMENSIONS
WALL
FIXING
BRACKET
Ø44.5
Ø40.0
Ø44.5
Ø44.5
14.0 A/F
(TYP.)
Ø40.0
14.0 A/F
(TYP.)
19
14.0
12.0
12.0
WALL
0)
FIXING
RACKET
(12.7)
2(32.0)
x Ø4.20
(23.7)
(22.0)
Electrical Connections
19
30
14.0
30
G1/8
4.0
Ø40.0
19
12.0
WALL
FIXING G1/8
BRACKET
4.0
(23.7)
(32.0)
30
(12.7)
WALL
FIXING
BRACKET
(12.7)
(23.7)
TYPICAL WIRING DIAGRAMS
Electrical Connections
Electrical Connections
Electrical Connections
Electrical Connections
Type 481A: mA Output
Type 482A: mA Output
Red +ve 12 Type
– 24V482A:
d.c. mA Output
Type 481A: mA Output
WHITE OUTPUT 4 – 20mA
Red +ve 12 – 24V d.c.
DRAIN (EARTH)
Red +ve 12 – 24V d.c.
WHITE OUTPUT 4 – 20mA
WHITE OUTPUT 4 – 20mA
DRAIN (EARTH)
DRAIN (EARTH)
Type 481B: Voltage Output
RED 24V a.c./d.c.
Type 482B: Voltage Output
Type 481B: Voltage Output
WHITE OUTPUT 0 – 10V
RED 24V a.c./d.c.
BLACK – COMMON
RED 24V a.c./d.c.
WHITE OUTPUT 0 – 10V
DRAIN (EARTH)
WHITE OUTPUT 0 – 10V
BLACK – COMMON
BLACK – COMMON
DRAIN (EARTH)
DRAIN (EARTH)
Electrical Connections
Red +ve 12 – 24V d.c.
Type 482A: mA Output
WHITE OUTPUT 4 – 20mA
DRAIN (EARTH)
Red +ve 12
WHITE OUT
Type 482B: Voltage Output
DRAIN (EAR
RED 24V a.c./d.c.
Type 482B: Voltage Output
WHITE OUTPUT 0 – 10V
BLACK – COMMON
RED 24V a.c
DRAIN (EARTH)
WHITE OUT
BLACK – CO
DRAIN (EAR
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5
Series 2200 & 2600
The 2200 series features stability and
accuracy in a variety of enclosure options.
The 2600 series extends the packaging
options via an all welded stainless steel
back end for demanding submersible and
industrial applications.
The 2200 and the 2600 feature proven CVD
sensing technology, an ASIC (amplified
units) and modular packaging to provide a
sensor line that fits most applications and
can easily accommodate specials whilst
not sacrificing high performance.
Pressure Transducers
Features
5Gauge, absolutem vacuum and
compound pressure models
available
5Submersible, general purpose and
wash down enclosures
5High stability achieved by CVD
sensing element
5Millivolt, voltage and current output
models
5Ranges from vacuum to 400 barG,
0 to 25 barA
5CE marked to EN 61000-6-2 and
UL approved
Mechanical
Specifications
Electrical
Specifications
Pressures
Mechanical Configurations
Millivolt Output Units
Pressure RangesVacuum to 400 bar
Gauge and 0 to 25
bar Absolute
Wetted Parts17-7 PH
Stainless Steel
Output100mV ±1mV
Intermediate ranges to suit application.
Proof Pressure2 x FS (1.5 x FS for
400 barG)
Performance
Accuracy0.25% FS typical
(optional 1.5% FS)
Thermal Error1.5% FS typical
(optional 1% FS)
Temperature Range-20 to +80°C
Long Term Drift
0.2% FS/year
Pressure
See ordering
Connectionchart
Enclosure316 ss, 17/7 ph ss
Vibration35g peak sinusoidal,
5 to 2KHz
Acceleration100g steady acceleration
in any direction 0.032%
FS/g for 1 bar range
decreasing logarithmically
to 0.0007% FS/g for 400
bar range
WeightApprox 100g (additional
cable 75g/m)
Supply Voltage10 Vdc (15 Vdc max)
regulated
Bridge Resistance4 to 20mA (2 wire)
Voltage Output Units
OutputSee ordering chart
Supply1.5V above FS output
to 35 Vdc at 6mA
Min Load Resistance FS output/2K ohms
Current
Consumption
Approx 6mA at 7.5V
output
Current Output Units
Output4–20mA (2 wire)
Supply Voltage (VS)7 to 35 Vdc. Above
100°C supply limited
to 24 Vdc
Supply Sensitivity0.01% FS/Volt
Max Loop Resistance(VS-7) x 50 ohms
6
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Pressure Transducers
Series 2200 & 2600
How to Order
Use the bold characters from the chart below to construct a product code
2200 B
G A60 01 A
Series
U
A
Performance Code
2200
2600
A – .25%/1.5%
B – .15%/1.0%
Output
A – 100mV
B – 4–20mA
C – 1–6V
3
D – 1–11V
H – 1–5V
J – 0.5–5.5V
R – 0–5V
S – 0-10V
See Table 1
Pressure Datumn
A* – Absolute
G – Gauge
*Max absolute range is 25 bar.
Apparatus Protection
Pressure Range – bar (see note 3)
A10 – 0–1
A16 – 0–1.6
A25 – 0–2.5
A40 – 0–4
A60 – 0–6
B10 – 0–10
B16 – 0–16
B25 – 0–25
B40 – 0–40
B60 – 0–60
C10 – 0–100
C16 – 0–160
C25 – 0–250
C40 – 0–400
Vac = -1 bar
1A0 – Vac–0
1A6 – Vac–0.6
2A5 – Vac–1.5
4A0 – Vac–3
6A0 – Vac–5
1B0 – Vac–9
1B6 – Vac–15
2B5 – Vac–24
4B0 – Vac–39
Pressure Range – psi (see note 3)
F15 – 0–15
F30 – 0–30
F60 – 0–60
G10 – 0–100
G15 – 0–150
G20 – 0–200
G30 – 0–300
G50 – 0–500
G60 – 0–600
H10 – 0–1,000
H15 – 0–1,500
H20 – 0–2,000
H30 – 0–3,000
H40 – 0–4,000
H50 – 0–5,000
H60 – 0–6,000
Vac = -15 psi
1F5 – Vac–0
3F0 – Vac–15
6F0 – Vac–45
1G0 – Vac–85
1G5 – Vac–135
3G0 – Vac–185
3G0 – Vac–285
Pressure Port
01 – G1/4 External
02 – 1/4-18 NPT External
03 – G1/2 Manometer
04 – 7/16-20UNF to SAE J514
05 – G1/4 Ext. Soft Seal
Cable Length
08 – 1/8-27 NPT External
09 – G1/8 Internal
00 – G1/4 Internal
OA – R1 /4 External
19 – Nose Cone (2600 Only)
Others – Consult Factory
2 – mV Transient Protection CE Mark
3 – Amplified RFI Protected CE Mark
Electrical Connection
2200 Series
A –Industrial DIN Mating Connector
Supplied
B – Industrial DIN Mating Connector
Not Supplied
2 –Cable Nema 4 USA
0 –Cable Weatherproof IP65 Europe
F –Cable Gland Metal lP67
2600 Series
C –Fixed Plug Size 10–6 Mating
Plug Not Supplied
G –Fixed Plug To DIN 43650
Mating Plug Supplied
M –Moulded Cable Immersible Max.
(See Note 1)
1 –Fixed Plug Size 8–4 Mating
Plug Not Supplied
3 –Conduit Connector 1/2NPT
Ext. 1M Cable (See Note 2)
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7
Series 2200 & 2600
Pressure Transducers
Dimensions – 2200 Series
G 1/4 Internal
Code
‘00’
Industrial DIN Connector
Code ‘B’
G 1/4 External
Code
‘01’
1/4–1/8 NPT
Code
‘02’
Industrial DIN Connector
(Mate Supplied)
mV Gauge/Absolute
Amplified Gauge
G 1/2 Manometer
Code ‘A’
Code
‘03’
7/16–20 UNF–2A
Code
‘04’
IP67 Cable
Amplified Absolute
G 1/4 Soft Seal
Code
‘05’
Code ‘F’
1/8–27 NPT
Code
‘08’
IP65 or NEMA4 Cable
Code ‘D’ or ‘2’
Maximum diameter
27.4mm (1.07”)
R 1/4
Code
‘0A’
G 1/8 Internal
Code
‘09’
8
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Pressure Transducers
Series 2200 & 2600
Dimensions – 2600 Series
G 1/4 Internal
Code
‘00’
10–6 or 8–4 Mil–C Connector
G 1/4 External
Code
‘01’
Large DIN 43650 Plug
(Mate Supplied)
mV Gauge/Absolute
Amplified Gauge
1/4–1/8 NPT
Code
‘02’
G 1/2 Manometer
Code
‘03’
Conduit Connector with Cable
7/16–20 UNF–2A
Amplified Absolute
Code
‘04’
G 1/4 Soft Seal
Code
‘05’
Conduit Connector
with Flying Leads
1/8–27 NPT
Maximum diameter
27.4mm (1.07”)
Code
‘08’
R 1/4
Moulded, Immersible Cable
Code
‘19’
R 1/4
Code
‘0A’
G 1/8 Internal
G 1/8 Internal
Code
‘09’
Code ‘29’
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9
Series 2200 & 2600
Pressure Transducers
Electrical Connections
Connection Code
mV Units
Current units (4-20mA)
Voltage units
IN+
OUT+
OUT-
IN-
(+)
(-)
EARTH
IN+
COM
OUT+
EARTH
A, B, G Industrial DIN
PIN
1
2
3
E
1
2
4
1
2
3
4
C
"10-6 Bayonet"
PIN
A
B
C
D
A
B
E
A
C
B
E
D
"cable"
R
Y
BL
G
R
BK
DRAIN
R
BK
W
DRAIN
F
"IP 67 cable"
R
Y
BL
G
R
BL
DRAIN
R
BK
W
DRAIN
M "Immersible
R
Y
BL
W
R
BL
DRAIN
R
W
Y
DRAIN
1
"8-4 Bayonet"
A
B
C
D
A
B
D
A
C
B
D
2
"cable"
R
W
G
BK
R
BK
DRAIN
R
BK
W
DRAIN
3
"conduit & cable"
R
W
G
BK
R
BK
DRAIN
R
BK
W
DRAIN
Cable Legend:
PIN
R = Red;
BL = Blue;
BK = Black;
W = White;
G = Green;
Y = Yellow
Notes
1. Where electrical connection -M is specified, customer must select cable length from Table 1.
2. Where electrical connection -3 and cable length -U occur in part number, the unit will be supplied with flying leads (IP30).
3. Additional Pressure Ranges are available. Minimum range 500mb – please consult factory.
Table 1 – Cable Units
(2600 Series) (2200 Series select ‘U through ‘G’)
Code
U
Length (M)
No Cable Fitted
10
Code
Length (M)
Code
Length (M)
Code
Length (M)
Code
Length (M)
F
5
K
25
p
75
4
170
G
10
L
30
Q
100
5
200
6
225
D
1
H
15
M
40
R
125
E
3
J
20
N
50
S
150
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Pressure Transducers
Series 2200 & 2600
Options and Variations for Series 2200 & 2600
TYPE 453 L Chemical seal version
This option is intended for harsh fluids as
it can be fitted with corrosion resistant
wetted parts.
This variant can also be used where there
are submerged solids in the process fluid.
It has a fluid filled chamber to transmit
the pressure in the process fluid to the
transducers sensor.
Accuracy
linearity ± 0.75% of range
hysteresis ± 0.5% of range
Weight
Please note the
flange clamping
bolts must not
be slackened as
this will break the
pressure seal and
render the unit
inoperative.
0.5 kg.
The pressure connection can be made to
suit the application.
TYPE 453 M High temperature version
This option is intended for use for high
temperatures it can also be used with high
temperatures and harsh fluids as it can be
fitted with corrosion resistant wetted parts.
Accuracy
linearity ± 1.0 % range
hysteresis ± 0.5% range
This variant can be also be used where there
are submerged solids in the process fluid.
Temperature
It has an oil fluid filled chamber to transmit
the pressure in the process fluid to the
transducers sensor.
Process temperature up to 200°C will not
give rise to additional errors
High temperatures are cooled over the
copper tube which keeps the pressure
transducer at ambient temperature.
Please note the
flange clamping
bolts must not
be slackened as
this will break the
pressure seal and
render the unit
inoperative.
Weight
0.9 kg.
The pressure connection can be made to
suit the application.
TYPE 453 N & 454 N Flange mounted version
This version is intended to be used where
pipe line flanges, hygienic fittings or
special custom connections are required.
It has an oil fluid filled chamber to transmit
the pressure in the process fluid to the
transducers sensor.
Normally the connection is made from
stainless steel but other materials are
available.
Accuracy
The connection has a flush diaphragm
across the pressure opening.
Please note that it is the users responsibility to ensure that the material specified is
compatible with the chemicals used and
linearity ± 0.75 % of range
hysteresis ± 0.5% of range.
the application conditions of concentration
and temperature. For chemical compatibility charts please see page 24 For further
Please note the
flange clamping
bolts must not
be slackened as
this will break the
pressure seal and
render the unit
inoperative.
information please contact our technical
department for the option and variants
shown above.
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Series 4000
This series of pressure transducers have
been designed where a simple low cost
device is required to give a readily usable
0–10V or 4-20 mA analogue signal. They
can be supplied for many applications
since the wetted parts can be selected
to meet a wide range of corrosive
requirements. CE marked models are fully
certified in accordance with EN 50081 &
EN 50082.
Pressure Transducers
FEATURES
5Hall Effect (magnetic) Sensor
5Ranges up to 25 bar
50 -10V dc or 4 - 20 mA output
5Supplied with a Plug & socket
5Pressure connection 1/2” bsp
parallel male
5Weight 0.7 Kg
TYPE 4311
TYPE 4411
TYPE 4511
Ranges
Ranges
Ranges
250 mbar
25 mbar
10 mbar
400 mbar
50 mbar
20 mbar
1 bar
100 mbar
2 bar
160 mbar
4 bar
7 bar
10 bar
25 bar
1 bar vacuum
intermediate ranges available
intermediate ranges available
Accuracy
Materials of construction
Linearity & Hysteresis
combined ± 2% of range
Pressure Connection
Brass
Diaphragm
Beryllium Copper
Seal
Nitrile rubber
intermediate ranges available
See page 24 for alternative wetted parts
The units can be calibrated to intermediate
ranges but the accuracy will relate to
the appropriate diaphragm range shown
above.
CoverAnodised
Aluminium
12
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Pressure Transducers
Series 4000
General Specification
Calibration
Temperature Effects
Maintenance
Gain (span) and offset (zero) adjustment of
approx. ± 5% of range is provided under
cover.
Typically ±0.14% per °C between
15–30 °C. Calibrated at 20 °C.
No maintenance is required on these
transducers. On critical applications,
periodic checks of offset at zero pressure,
with slight adjustment, if necessary, will
maintain optimum performance.
Overpressure
All ranges will accept range plus 10%
TYPICAL WIRING DIAGRAMS
Voltage Output
Current Output
SCREEN
Output load impedance
10k min.
SCREEN
PIN 1 OUTPUT
PIN 1 OUTPUT
PIN 2 COMMON
PIN 2 COMMON
PIN 3 SUPPLY (+VE)
PIN 3 SUPPLY (+VE)
Output load impedance
250k max.
PIN 4 NOT USED
LOAD
PIN 4 NOT USED
NOTE It is important that the connections are made correctly. Reverse voltage application will damage the transducer.
DIMENSIONS
CABLE GLAND TO SUIT
Ø 6.0 CABLE MAX
CABLE GLAND TO SUIT
Ø 6.0 CABLE MAX
Ø 80.0
CABLE GLAND TO SUIT
Ø 6.0 CABLE MAX
Ø 80.0
Ø 120.6
77.5
77.5
Ø 80.0
21.5
47.0
G 1/4 A
68.0
22.00 A
21.67 /F HEX
51.0
G 1/2 A
Ø 90.0
Type 4311
30.0
17.00 A
16.73 /F HEX
G 1/2 A
38.5
15.0
30.0
23.0
30.0
24.00 A
23.67 /F HEX
21.5
67.5
21.5
68.0
42.0
77.5
Type
4511
Type 4411
62.0
Ø 120.6
Part No. Suffixes
Ordering Information – Example
CEA4–20 mA output (CE marked).
Type4311 Pressure Transducer.
Connection1/2” bar.
CEB0–10V dc Output (CE marked).
Range10 bar pressure.
FluidFor use on water.
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Series 4000
This series of pressure transducers have
been designed as a simple low cost device
to monitor pressure difference between
a high and a low pressure. For example
across filters, through boilers etc. These
transducers can be used to measure flow
using orifice plates, pitot tubes etc (see
pages 21-23 for suitable digital displays
with square root output). CE marked
models are fully certified in accordance
with EN 50081 & EN 50082.
Differential Pressure Transducers
Features
5Hall Effect (magnetic) Sensor
5Differential pressure ranges up to
25 bar
50 -10V dc or 4 - 20 mA output
5Supplied with a plug & socket
5Weight 1.2 Kg
TYPE 4312
TYPE 4412
TYPE 4512
Ranges
Ranges
Ranges
250 mbar
25 mbar
10 mbar
400 mbar
50 mbar
20 mbar
1 bar
100 mbar
2 bar
160 mbar
4 bar
7 bar
10 bar
25 bar
1 bar vacuum
Max. line pressure 90 bar
Max. line pressure 34 bar
Max. line pressure 10 bar
intermediate ranges available
intermediate ranges available
intermediate ranges available
The units can be calibrated to intermediate ranges but the accuracy will relate to the appropriate sensor range shown above.
14
Accuracy
Alternative wetted parts
Ordering Information - Example
Linearity & Hysteresis
combined ± 2% of range
Pressure
Connection
316 Stainless steel
Type4412A Differential
Pressure Transducer.
Materials of construction
Diaphragm
17/7 ph Stainless steel
Seal
according to fluid
Pressure
Connection
Brass
Diaphragm
Beryllium Copper
Seal
Nitrile rubber
Cover
Anodised Aluminium
Range50 mbar differential
pressure.
Line Pressure 20 bar.
Part No. Suffixes
CEA4 - 20 mA output
(CE marked).
Connection
1/8” bspp female.
Fluid
For use on water.
CEB0 - 10 V dc output
(CE marked).
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Differential Pressure Transducers
Series 4000
General Specification
Calibration
Temperature Effects
Maintenance
Gain (span) and offset (zero) adjustment of
approx. ± 5% of range is provided under
cover.
Typically ±0.14% per °C between
15–30 °C. Calibrated at 20 °C.
No maintenance is required on these
transducers. On critical applications,
periodic checks of offset at zero pressure,
with slight adjustment, if necessary, will
maintain optimum performance.
Overpressure
All ranges will accept range plus 10%
TYPICAL WIRING DIAGRAMS
Voltage Output
Output load impedance
10k min.
Current Output
PIN 1 OUTPUT
PIN 1 OUTPUT
PIN 2 COMMON
PIN 2 COMMON
PIN 3 SUPPLY (+VE)
PIN 3 SUPPLY (+VE)
Output load impedance
250k max.
PIN 4 NOT USED
LOAD
PIN 4 NOT USED
NOTE It is important that the connections are made correctly. Reverse voltage application will damage the transducer.
DIMENSIONS
Ø 80.0
Ø 80.0
CABLE GLAND TO SUIT
Ø 6.0 CABLE MAX
Ø 80.0
77.5
77.5
47.0
Type
4312
Optional Addition to
Series 4000 Transducers
G 1/8
51.0
Ø 90.0
30.0
Type
4412
CRS
CABLE GLAND
Ø 6.0 CABLE
7.0
16.5
91.0
CRS
16.2
30.0
G 1/2 A
CABLE GLAND TO SUIT
Ø 6.0 CABLE MAX
8.0
24.00 A
23.67 /F HEX
30.0
42.0
68.0
91.0
21.5
21.5
21.5
77.5
G 1/8
62.0
Type
4512
Ø 120.8
Features
531/2 digit 10 mm high LCD display
All Hall Effect Pressure Transducers can be
fitted with a digital display in the lid.
54-20 mA or 0-10V dc output
5Offset & Gain adjustment through
cover
5Scaled in any pressure units
When ordering state Fitted with LCD
display’ after the pressure transducer
specification.
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Type 4101
Pressure Transducers
This pressure transducer has been
specifically designed where high
electromagnetic radiation is present,
such as in fire appliances, hospitals, radio
transmitting stations etc.
It is totally immune to and does not radiate
any frequency of EMC.
Features
5Suitable for use in EMC noisy
environments
50-10V dc output requires 12V dc
supply
53/8” bspp male connection
5IP65 enclosure
5Plug & socket electrical connection
WIRING DIAGRAM
DIMENSIONS
PIN 1
OUTPUT BLUE
PIN 2
0V YELLOW
PIN 3
12V dc REGULATED RED
GROUND
GREEN/YELLOW
16
Pressure Ranges
Accuracy
Alternative wetted parts
Any pressure range from 0–25 bar
minimum to 0–700 bar maximum
Linearity & Hysteresis
combined ± 2% of range
Stainless steel
Output
Materials of construction
Ratiometric
Pressure
Connection
Brass
Sensing
Element
Phospher Bronze
Housing
Anodised Aluminium
The transducers can be used on all fluids
compatable with the wetted parts.
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Pressure Transducers
Type 73PT
Pressure gauge with high output signal.
Designed to give pressure indication and
electrical output signal for distant reading
in one unit and only one pressure tapping.
FEATURES
5Gauge (g) ranges up to 600 bar g
5Potentiometric or 4-20 mA output
56” dial pressure indication
5Supplied with 1M flying lead
5Weight 1.18kg
5Pressure connection 1/2” BSP male
(alternatives available)
5Bourdon tube sensing element
PART No. 73 PT for voltage output
PART No. 73 PTA for 4-20MA output
TYPE 73PT / 73PTA
WIRING DIAGRAM
Gauge Pressures
For use with materials compatible
with brass and phosphor bronze
73PT
Ranges
-1/0 bar g
0/25 bar g
0/1 bar g
0/40 bar g
0/1.6 bar g
0/60 bar g
0/2.5 bar g
0/100 bar g
0/4 bar g
0/160 bar g
0/6 bar g
0/250 bar g
0/10 bar g
0/400 bar g
0/16 bar g
0/600 bar g
Alternative ranges available
Note:The coil will be damaged if full load is applied via the wiper.
Output:0/2000 ohms (ranges up to 2.5 bar)
0/1570 ohms (ranges 4 bar and above)
minimum load impedance 4K ohms
Supply:60V dc max regulated
max current 12mA
73PTA
Accuracy
Output:4-20 mA
2 Wire current loop
max load impedance
400 ohms
±1%
Supply:12 to 24 V dc
Output
73PT Ratiometric
73PTA 4-20 mA
Note:If the wiring is
reversed there will be
no signal.
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Type 70PT
Pressure Transducers
Pressure gauge with high output signal for
harsh media.
Designed to give pressure indication and
electrical output signal for distant reading
in one unit and only one pressure tapping.
Features
5Gauge (g) ranges up to 40 bar g
5Potentiometric or 4-20 mA output
56” dial pressure indication
5Supplied with 1M flying lead
5Weight 1.2kg
5Pressure connection 1/2” BSP male
(alternatives available)
5Diaphragm sensing element
PART No. 70 PT for voltage output
PART No. 70 PTA for 4-20mA output
See page 24 for alternative wetted parts
TYPE 7OPT / 70PTA
WIRING DIAGRAM
Gauge pressures
For use with materials compatible
with wetted parts specified.
Brass and BeCu - standard.
Seals - PTFE
73PT
Ranges
0/2.5 bar g
0/4 bar g
0/6 bar g
Note:The coil will be damaged if full load is applied via the wiper.
0/10 bar g
Output:0/2000 ohms
minimum load impedance 4K ohms
0/16 bar g
0/25 bar g
0/40 bar g
Supply:60V dc
max current 12mA
Alternative ranges available
73PTA
Accuracy
Output:4-20 mA
2 Wire current loop
max load impedance
400 ohms
± 1.5% f.s.
Supply:12 to 24 V dc
Output
70PT Ratiometric
70PTA 4-20 mA
18
Note:If the wiring is
reversed there will be
no signal.
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Pressure Transducers
Type 69PT
Pressure gauge with high output signal.
Designed to give local indication of
pressure difference between two points
and electrical output signal for distant
reading in one unit.
Features
5Differential ranges
5Potentiometric or 4-20 mA output
56” dial pressure indication
5Supplied with 1M flying lead
5Weight 2kg
51/4” BSPFE connections
(alternatives available)
5Diaphragm sensing element
5Maximum line pressure 34 bar g
PART No. 69 PT for voltage output
PART No. 69 PTA for 4-20mA output
TYPE 69PT / 69PTA
WIRING DIAGRAM
Differential pressures
For use with materials compatible
with brass, BeCu and nitrile.
73PT
Ranges
0/2.5 bar
0/4 bar
0/6 bar
Alternative ranges available
Maximum line pressure 34 bar
(not to be applied to one side only).
Note:The coil will be damaged if full load is applied via the wiper.
Output:0/2000 ohms
minimum load impedance 4K ohms
Supply:60V dc
max current 12mA
Accuracy
± 2% f.s.
Output
69PT Ratiometric
69PTA 4-20 mA
Alternative wetted parts
73PTA
Output:4-20 mA
2 Wire current loop
max load impedance
400 ohms
Supply:12 to 24 V dc
Note:If the wiring is
reversed there will be
no signal.
Stainless steel and viton seals
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Type 440
Low cost display for use with our range
of single ported and differential pressure
transducers and potentiometric pressure
gauges.
Analogue Displays
Features
596 Din case
5Panel mounting
5Rear screw terminals
50-10V & 4-20mA inputs
590° scale
5IP54 enclosure
PART No. 440 A is for 4-20mA input
PART No. 440 B is for 0-10V dc
TYPE 440A&B
For use with 4-20mA or 0-10V output
transducers and potentiometric gauges
detailed in this catalogue.
WIRING DIAGRAM
(provided with each unit)
Ranges
-1.0 bar vacuum up to
600 bar pressure.
440A
Alternative scales available
Dimensions
Front face 96x96mm
Depth of case 43mm
Depth including terminals 60mm
Separate power supply required 12 to 24V dc.
Panel cutout 92x92mm
440B
Accuracy
± 2% f.s.
Separate power supply required either 12 to 24V dc single rail
or 12-0-12 dual rail.
Input
4-20 mA ñ 440A
0-10V ñ 440B
20
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Digital Displays
This display is intended for use with the
pressure transducers illustrated in this
catalogue. They can also be used in other
applications where digital indication of an
input value is required.
The displays are CE marked in accordance
with European legislation.
Type 441
Features
514.2 mm high LEDs
51/8 din case
5Factory set user configured
52 software alarms
590 - 265V ac or 12 - 24V dc input
option
5Front panel conforms to IP 64
5Square root extraction built-in
5Powers all Bailey & Mackey
transducers directly
DIMENSIONS
General Specification
Calibration
Accessed from front panel
Alarms
Two software alarms
Power Supply
Input 90 to 265V ac or 12 to 24V dc
On mains units it is recommended that a
50 mA anti-surge fuse is fitted in the live
input supply to the display
Part No. Suffixes
A
4-20 mA
B
0-10V dc output
Ordering Information - Example
Panel cut-out 93x45mm
Depth behind panel 175mm
Supplied with all connectors
Type
441A
Supply
240V 50Hz
Calibration 0-10 bar
Installation instructions provided with each display
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Type 442
Digital Displays
Digital Display
Dual Alarm Type 442
Features
514.2 mm high LED’s
51/8 din case
This display is intended for use with the
pressure transducers illustrated in this
catalogue where two volt free alarm
contacts are required.
They can also be used in other applications
where digital indication of an input value
is required. The displays are CE marked in
accordance with European legislation.
5Factory set user configured
52 spco volt free relay contacts
52 software alarms
590 - 265V ac or 12 - 24V dc input
option
5Front panel conforms to IP 64
5Square root extraction built in
5Powers all Bailey & Mackey
transducers directly
DIMENSIONS
General Specification
Calibration
Accessed from front panel
Alarms
Two software alarms
Power Supply
Input 90 to 265V ac or 12 to 24V dc
On mains units it is recommended that a
50 mA anti-surge fuse is fitted in the live
input supply to the display
Part No. Suffixes
A
4-20 mA
B
0-10V dc output
Ordering Information - Example
Panel cut-out 93x45mm
Depth behind panel 175mm
Supplied with all connectors
Type
442A
Supply
240V 50Hz
Calibration 0-10 bar
Installation instructions provided with each display
22
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Power Supplies
Series 500
The following power supplies have been selected for use with the
transducers illustrated in this catalogue.
Connection details are supplied with each power supply supplied.
To ensure the correct unit is used please contact our technical
department prior to ordering.
TYPE 553
TYPE 555
For use with Type 453B & Type 454B
pressure transducers shown on page 4
For use with Type 045/3 and Type 045/4
shown on page 2
Output:Dual rail adjustable
(10 to + 15V dc 0.5 A max.)
Output:Single rail fixed
(+5V dc 0.5 A max.)
Supply:240v 50/60 Hz only
Supply:110/240V 50/60 Hz.
Case:Enclosed type with
ventilation apertures
Case:Enclosed type with
ventilation apertures
TYPE 554
TYPE 556
For use with Type 453, Type 454, Type 4311,
Type 4312, Type 4411, Type 4412, Type 4511 and 4512
pressure transducers shown on pages 4-16
For use with Type 453, Type 454, Type 4311,
Type 4312, Type 4411, Type 4412 Type 4511 and 4512
pressure transducers shown on pages 4-16
Output:Single rail adjustable
(+10 to +20V dc 0.5A max.)
Output:Single rail adjustable
(+12 to +15V dc 1.5 A max.)
Supply:240v 50/60Hz only
Supply:110/240V 50/60Hz only
Case:Enclosed type with
ventilation apertures
Case:Open chassis type
For further information please contact our Technical Department
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Chemical Protection
Pressure Transducers
It is the user’s responsibility to ensure that the materials are compatible with the application.
Malleable Iron Base,
316 S.Steel Disc
Silver Plated Base,
Fine Silver Disc
Acetylene
Brines
Alkyl Chlorides
Bromine
Ammonia (Max 60°C)
Chlorine (wet or dry)
Aniline
chlorates of Na, K, Ba
Calcium Chloride (Max 60°C)
Chlorides of Na, K, Mg
Caustic Soda (Max 60°C)
Flourine
Chlorides of Na, K, Mg
Mercuric Chloride
Hydrocyanic Acid
Ozone
Pyridine
UPVC Base 1/2” BSP,
PTFE Disc
316 Stainless Base
and Disc
Max Temperature 40°C
Acetic Acid
Max Pressure 200 lbf/in2
Ammonium Hydroxide
Anhydrous Ammonia
Carbon Disulphide
Aluminium Chloride
Carbon Tetrachloride
Caustic Soda
Caustic Soda
Hydrobromic Acid (50%)
Caustic Potash
Hydrochloric Acid (36%)
Citric Acid
Hydrogen Sulphide
Formic Acid
Lead Acetate
Fruit Juices
Methanol
Food Machinery
Oxalic Acid
Hexamine
Phosphoric Acid (50%)
Hydrogen Peroxide
Potassium Salts
Oil-Phosphate Ester Based
Sodium Hypochlorite
Silver Nitrate
Sodium Salts
Water De-ionised
Sulphuric Acid (70%)
Waste Gases
Contact our technical sales department for accuracies of transducers with alternate wetted parts.
24
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Pressure Transducers
Installation and Use
A Pressure Transducer correctly installed and to the correct
specification gives an electrical output proportional to the
pressure in the system which helps to ensure the safe working
of process plant and machinery.
e)Ambient and process temperature acting on the transducer
should be within catalogue values. The unit should be
protected from higher fluid temperatures by means of a
syphon tube filled with condensate before use. The fluid in
the pressure chamber should not be allowed to freeze or
crystallise as this will lead to rupture of the sensing element.
a)Before fitting the pressure transducer to a pressure source
check that the range (full scale) of the device is the same or
higher than the pressure to be applied.
f)Differential pressure transducers should not be used with
more than the range of the transducer applied to one side
unless approved by our Technical Department. Line pressure
must not exceed the line pressure stated on the pressure
transducers label. The higher of the two pressures must be
connected to the port marked high and the lower of the two
pressures must be connected to the port marked low.
b)Before fitting the pressure transducer to a pressure source
check that the wetted parts are compatible with the fluid being
used, and that the pressure connection correctly matches that
of the pipework.
c)When fitting the pressure transducer to pipework use correct
sealing methods. Do not use the transducer body to tighten
the pressure transducer to the pipework, use correct spanners
on the hexagon base.
g)Ensure that the pressure transducer is connected electrically
in accordance with the installation instructions supplied
with the unit. Incorrect connection can damage the pressure
transducer beyond repair.
d)Do not use pressure transducers on Oxygen or Acetylene
unless approved by our Technical Department.
If in doubt concerning the application of any pressure transducer please contact
our Technical Department who will be only too pleased to give you advice.
Pressure Conversion Factors
Multiply units in left hand column by factor to obtain units at top. i.e. bar x 14.504 = lbf/in2
bar
lbf/in2
kg/cm
atm (std)
MH2O
inH20
mmHg
inHg
N/M2
Pa
1
14.504
1.0197
0.9869
10.197
401.46
750.06
29.53
100000
100000 ‘
lbf/in2
0.0689
1
0.0703
0.068
0.7031
27.68
51.715
2.036
6894.8
6894.8
kg/cm2
0.9807
14.223
1
0.9678
10
393.7
735.56
28.959
98066
98066
atm (std)
1.0133
14.696
1.0332
1
10.332
406.78
760
29.921
101325
101325
MH2O
0.0981
1.4223
0.1
0.0968
1
39.37
73.556
2.8959
9806.6
9806.6
inH2O
0,0025
0.0361
0.0025
0.0025
0.0254
1
1.8683
0.0736
249.09
249.09
mmHg
0.0013
0.0193
0.0014
0.0013
0.0136
0.5352
1
0.0394
133.32
133.32
bar
inHg
0.0339
0.4912
0.0345
0.0334
0.3453
13.595
25.4
1
3386.4
3386.4
N/M2
0.00001
0.00015
0.00001
0.00001
0.0001
0.004
0.0075
0.0003
1
1
Pa
0.00001
0.00015
0.00001
0.00001
0.0001
0.004
0.0075
0.0003
1
1
The right is reserved to change product specifications without prior notice.
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1
OTHER PRODUCTS IN OUR RANGE
PRESSURE SWITCHES
BOURDON TUBE
PRESSURE GAUGES
DIAPHRAGM & DIFFERENTIAL
PRESSURE GAUGES
Keeping pressure under control
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DP09PT