Barksdale B1S, B2S User Manual
Index: E / 923-1494
Type B1S/B2S Bourdon Tube Pressure SwitchesType B1S/B2S
Mechanical single/dual pressure switch
Repeatability ±1.0 % at constant temperature
Features
Bourdon tube pressure switch
All welded parts wetted.
Direct acting, no friction, high accuracy
Adjustment ranges
4.8 ... 950 bar
Applications
Pump control,
Die-casting machines,
Press control,
Power plants,
Alarm functions
Technical Data
Wetted parts:
Process connection:
Bourdon tube:
Repeatability:±1 % at constant temperature
Switching rate:max. 20/min
Temperature range:-40 °C... +75 °C
Protection class:IP00
Housing:Without housing for installation
Process connection:1/4" NPT female thread except
Electrical connection:Lead wire PVC 1.5 mm
Connection Chart
Pressure range
code
12SS4.8 ... 823.4 ... 8190.100.0.96.1.86.
32SS13.7 ... 22011.0 ... 217250.280.2.68.5.44.
48SS22.4 ... 33016.5 ... 325370.415.2.75.5.90.
65SS*30.3 ... 44822.5 ... 440500.560.3.58.7.92.
120SS*79.3 ... 82741.4 ... 790850.103516.90.37.90.
180SS*79.3 ... 95041.4 ... 950999.138016.90.37.90.
Stainless steel 1.4401
Stainless steel 1.4401
in control panels:
ranges marked with *). These
switches have proof pressures
above 500 bar and are provided
with high pressure thread with
adapter "G1/4 female".
2
length appr. 450 mm
Adjustment range [bar]Max. operating
Increasing press.Decreasing press.(short term)H, GH [bar]M, GM [bar]
,
Electrical ratings and
hysteresis:
Weight:B1S-...: approx. 0.6 kg
Set point adjustment:Turn the adjustment screw
Intrinsically safe:The switches are designed for
Approval:---
pressure [bar]
Test pressure
[bar]
A large variety of micro switches
offers different electrical ratings
and hysteresis for many
applications.
B2S-...: approx. 0.7 kg
clockwise to decrease the set point
intrinsically safe applications.
Please add "Exi" to your ordering
details when placing an order. To
comply with the intrinsically safe
approval following max. ratings
must not be exceeded:
Umax = 28 V
Imax = 50 mA
Max. hysteresis of switch types in
bar (end of range)
Barksdale
Subject to technical changes.
1
Dimensions (mm / inch)
Pressure
Type B1S/B2S Bourdon Tube Pressure SwitchesType B1S/B2S
Electrical Ratings
Micro
switch
H
M
GH
GM30.0.1.0.1.30.0.10.0.1.Medium hysteresis
* on request
Order Code
Example for order number
TypeMicro switchPressure range code
B1SorB2S-H48SS
Your order number
TypeMicro switchPressure range code
Special featuresVolt AC
Micro switch with silver
contacts
Micro switch with silver
contacts
Micro switch with goldplated contacts for low
voltage and/or low current
50/60 Hz
125
250
480*
125
250
480*
125.1.1.24.1.00.1.00.Small hysteresis
or-
Ind. load
A
10
10
3
10
10
3
Res. load
A
10
10
3
10
10
3
Volt DCInd. load
6
to
24
12
24
250*
A
0.50.0.5.
5.00
1.00
0.25
Res. load
15.0
A
2.0
0.4
Comments
Small hysteresis;
High AC-/
low DC-load
Medium hysteresis;
High AC- and
DC-loads
2
Subject to technical changes.
Barksdale
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