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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 AST20SW 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.

CE Certified mark

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

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Performance @ 25°C (77°F)

Accuracy1
<±1.0% BFSL of line pressure
Overange Protection
2X rated line pressure, standard
Burst Pressure
5X or 60,000 PSI of line pressure, whichever is less
Pressure Cycles
> 100 million full pressure cycle

1 Accuracy includes: Non-linearity, Hysteresis and Non-repeatability

Environmental Data

Temperature
Operating
-40 to 85°C (-40 to 185°F)
Storage
-50 to 105°C (-58 to 221°F)
Thermal Limits
Compensated Range
-20 to 70°C ( -4 to 158°F)
Other
Shock
100G, 10msec, 1/2 sine
Vibration
10G peak, 20 to 2000Hz
EMI/RFI Protection
Yes
Rating
IP-66

 

Electrical Data

Excitation
10-28VDC
Current Consumption
< 10mA
Output Load
1 Amp., Resistive
Reverse Polarity
Yes

Ordering Information

AST20SW
A
05
P
E
Y
1
G
00025
F 05 000
Chart 1
System Pressure+ Code
50 01
100 02
250 03
500 04
1,000 05
3,000 06
5,000 07
7,500 08
10,000 09
15,000 10
20,000 11

Chart 2
Switching Pressure+ Code
25 00025
50 00050
100 00100
250 00250
500 00500
1,000 01000
2,500 02500
5,000 05000
10,000 10000

+For ranges not shown, please consult factory.
Series Type                      
Process Connection*
A= 1/4" NPT Male
B= 1/8"-27 Male NPT
C= 1/4"BSPP
W= F250C Female Autoclave
                   
System Pressure
Insert 2 digit code (chart 1)
                 
Pressure Unit (P= PSI)                
Switch Configurations
E= SPDT [Form C]
             
Electrical Connection
Y= Turck M12 4-Pin Eurofast
           
Wetted Material**
0=17-4PH
1=316 L
2= Inconel 718
         
Pressure Reference
Number (0, 1, 2)= Sealed Gauge
G= Vented Gauge Pressure
           
Switching Point Pressure
Insert 5 digit code (chart 2)
         
Switching Direction
F= Falling R= Rising
       
Hystersis (5-95% of system line pressure):
Insert 2 digit code (multiples of 5%, ex. 5% is 05)
       
Options (No 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 pressure ranges greater than 10,000. **316L available up to 10,000 PSI. For Inconel 718 consult factory on availability.        

Quick Contact

In less than a minute, you can contact AST with your requirements....

(Create your model number from the ordering chart above)

*AST has over 1,000 pressure sensors it can ship from stock for orders received by noon, EST. Submit your configuration and AST can offer the best solution available.

Warranty

Workmanship - AST, Inc. pressure transmitters have a limited one-year warranty to the original purchaser. AST, Inc. will replace or repair,free of charge, any defective transmitter. This warranty does not apply to any units that have been modified; misused, neglected or installed where the application exceeds published ratings. AST's sensors are made with pride in New Jersey, USA. If in the area please feel free to stop by for a visit!Installation/Applications - The purchaser is responsible for media compatibility, functional adequacy, and correct installation of the transmitter.


Datasheet
w/ Dimensions


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