The Model 20SW is a high accuracy Industrial ASIC Pressure Switch,
designed for use in a variety of applications. Applying digital
compensation, this product offers top performance over a wide
temperature range. Utilizing Krystal Bond Technology™, the sensing
element will measure pressure in the most extreme temperature
conditions.
Where other sensor technologies will freeze or boil, the 20SW uses a
one piece stainless steel sensor to offer continuous operation. If
linearity and repeatability are critical for your application, this product
will exceed your expectations at an affordable price.
Benefits
ASIC Compensation
Superb Temperature Performance
Excellent Accuracy
Factory Sealed
Wide Operating Temperature Range
High Proof and Burst Pressure
Hydraulics Controls
Boilers
Marine
Applications
Railways
SENSOR SOLUTIONS
/// AST20SW
06/2017
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STAINLESS STEEL
AST20SW SPDT Pressure Switch
Performance @ 25°C (77°F)
Error Tolerance
Over Range
Protection
Burst Pressure
Pressure Cycles
< ±0.1% BFSL of line pressure
2X Rated Pressure, standard
(For higher proof pressures, contact factory)
5X or 60,000PSI of line pressure, whichever is less
> 100 million full pressure cycle
Environmental Data
Temperature
Operating
Storage
-40 to 85°C (-40 to 185°F)
-50 to 105°C (-58 to 221°F)
0-100% relative humidity, non-condensing
Thermal Limits
Compensated Range
-20-70°C (-4 to 158°F)
Other
Shock
Vibration
EMI/RFI Protection:
Rating:
100G, 11 msec, 1/2 sine
10G peak, 20 to 2000 Hz.
Yes
IP-66
Electrical Data
Excitation
Current Consumption:
Set Point
Output Load:
Reverse Polarity
Protection
10-28VDC
< 10mA
See Chart
1 Amp, Resistive
Yes
SENSOR SOLUTIONS
/// AST20SW
06/2017
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STAINLESS STEEL
AST20SW SPDT Pressure Switch
Dimensions
SENSOR SOLUTIONS
/// AST20SW
06/2017
Page 3
STAINLESS STEEL
AST20SW SPDT Pressure Switch
Ordering Information
AST20SW
Series Type
Process Connection*
A= 1/4"-18 Male NPT C= 1/4"BSPP
B= 1/8"-27 Male NPT W= F250C Female Autoclave
System Pressure
Insert 2 digit code
50
100
250
01
02
03
04
05
06
07
08
09
10
A
05
P
E
Y
1
G
00025
F
05
000
System Pressure
500
3000
5000
7500
10,000
15,000
20,000
11
consult factory for pressures not shown
Pressure Unit
P= PSI
Switch Configurations
E= SPDT [Form C]
Electrical Connection
Y= M12x1
Wetted Material**
0= 17-4PH
1= 316L
2= Inconel 718
G= Vented Gauge Pressure
Pressure Reference
Number (0, 1, 2)= Sealed Gauge
Switching Point Pressure
Insert 5 digit code [5-95% of system line pressure]
25
00025
50
00050
100
00100
250
00250
500
00500
1,000
01000
2,500
02500
5,000
05000
10,000
10000
consult factory for pressures not shown
Switching Pressure
Switching Direction
F= Falling
R= Rising
Hysteresis:
Insert 2 digit code (example: 1% is 01) [1% of line pressure minimum]
Options= 000
*For optional pressure ports and electrical interfaces please consult factory. 1/8” NPT Male not available under 50PSI or with
316L. F250C Female Autoclave is the only option for 10,000 to 20,000PSI, not available in 316L. **316L available up to
10,000 PSI. For Inconel 718 consult factory on availability.
NORTH AMERICA
American Sensor Technologies, Inc. (AST),
a TE Connectivity Company
Tel: 800-522-6752
Email:
customercare.molive@te.com
Code
Code
1000
ASIA
Hong Kong Sensor Technologies (HKST),
a TE Connectivity Company
Tel: 0400-820-6015
Email:
customercare.shzn@te.com
TE.com/sensorsolutions
Measurement Specialties, Inc., a TE Connectivity company.
Measurement Specialties, TE Connectivity, TE Connectivity (logo) and EVERY CONNECTION COUNTS are trademarks. All other logos, products and/or company names referred to
herein might be trademarks of their respective owners.
The information given herein, including drawings, illustrations and schematics which are intended for illustration purposes only, is believed to be reliable. However, TE Connectivity makes
no warranties as to its accuracy or completeness and disclaims any liability in connection with its use. TE Connectivity‘s obligations shall only be as set forth in TE Connectivity‘s Standard
Terms and Conditions of Sale for this product and in no case will TE Connectivity be liable for any incidental, indirect or consequential damages arising out of the sale, resale, use or
misuse of the product. Users of TE Connectivity products should make their own evaluation to determine the suitability of each such product for the specific application.
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