
STAINLESS STEEL
SPDT Pressure
AST20SW
Overview
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
Wide Operating Temperature Range
Excellent Accuracy
High Proof and Burst Pressure
Factory Sealed
Applications
Hydraulics Controls
Boilers
Marine
Railways
SENSOR SOLUTIONS /// AST20SW 06/2017

STAINLESS STEEL
< ±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
-40 to 85°C (-40 to 185°F)
-50 to 105°C (-58 to 221°F)
0-100% relative humidity, non-condensing
Reverse Polarity
Protection
AST20SW SPDT Pressure Switch
Performance @ 25°C (77°F)
Environmental Data
Temperature
Thermal Limits
Other
Electrical Data
SENSOR SOLUTIONS /// AST20SW 06/2017

STAINLESS STEEL
AST20SW SPDT Pressure Switch
Dimensions
SENSOR SOLUTIONS /// AST20SW 06/2017

STAINLESS STEEL
A= 1/4"-18 Male NPT C= 1/4"BSPP
B= 1/8"-27 Male NPT W= F250C Female Autoclave
consult factory for pressures not shown
0= 17-4PH 1= 316L 2= Inconel 718
Number (0, 1, 2)= Sealed Gauge G= Vented Gauge Pressure
Insert 5 digit code [5-95% of system line pressure]
consult factory for pressures not shown
Hysteresis: Insert 2 digit code (example: 1% is 01) [1% of line pressure minimum]
Options= 000
*For optional pressure ports and electrica l interfaces please consult factory. 1/8” NPT Male not available under 5 0PSI 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 o n availability.
AST20SW SPDT Pressure Switch
Ordering Information
American Sensor Technologies, Inc. (AST),
a TE Connectivity Company
Tel: 800-522-6752
Email:
[email protected]
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 na mes 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 mak es
no warranties as to its accuracy or completeness and disclaims any liability in connection with its use. TE Connectivity‘s ob ligations 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.
© 2015 TE Connectivity Ltd. family of companies All Rights Reserved.
Hong Kong Sensor Technologies (HKST),
a TE Connectivity Company
Tel: 0400-820-6015
Email:
[email protected]
SENSOR SOLUTIONS /// AST20SW 06/2017