Barksdale B1T, B2T User Manual
Index: E / 923-1497
Type B1T / B2T Bourdon Tube Pressure SwitchesType B1T / B2T
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:IP65
Housing:Aluminium, anodized
Process connection:1/4" NPT female thread except ranges
Electrical connection:Internal terminal strip (0.5 ... 2.5 mm2)
Pressure Ranges
Pressure range
code
12SS4.8 ... 823.4 ... 81100.120.0.96.1.86.
32SS13.7 ... 22011.0 ... 217250.330.2.68.5.44.
48SS22.4 ... 33016.5 ... 325400.500.2.75.5.90.
65SS*30.3 ... 44822.5 ... 440550.670.3.58.7.92.
120SS*79.3 ... 82741.4 ... 790900.120016.90.37.90.
180SS79.3 ... 95041.4 ... 950999.160016.90.37.90.
Stainless steel 1.4401
Stainless steel 1.4401
marked with *). These switches have
proof pressures above 500 bar and
are provided with high pressure
thread with adapter "G1/4 female".
Standard: WAGO terminal and
cable gland M20 x 1,5
Adjustment range [bar]Max. operating
Increasing press.Decreasing press.(short term)H, GH [bar]M, GM [bar]
Electrical ratings and
hysteresis:
Weight:B1T-...: approx. 1.1 kg
Set point adjustment:Turn the adjustment screw clockwise
Intrinsically safe:The switches are designed for
Approval:---
pressure [bar]
Proof pressure
[bar]
A large variety of micro switches
offers different electrical ratings and
hysteresis for many applications.
B2T-...: approx. 1.2 kg
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 B1T / B2T Bourdon Tube Pressure SwitchesType B1T / B2T
Electrical Ratings
Micro
switch
H
M
GH
GM30.0.1.0.1.30.0.10.0.1.Medium hysteresis
* on request
Options
B1T-...B2T-...
ST1Plug, 3-pin + E, DIN EN 175 301-801-A (prev. DIN 43650)ST3Plug, 6-pin + E, DIN EN 43651
ST2Amphenol plug 4-pin + EEXIfor intrinsically safe application
EXIfor intrinsically safe application
Order Code
Example for order number
TypeMicro switchPressure range codeOptions
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
B1TorB2T-H48SS-ST2
50/60 Hz
125
250
480*
125
250
480*
125.1.1.24.1.00.1.00.Small hysteresis
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
Your order number
TypeMicro switchPressure range codeOptions
or--
2
Subject to technical changes.
Barksdale
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