Precision Pressure Temperature Transmitter

AST20PT

Precision Pressure and Temperature Transmitters / AST20PT

 

The AST20PT is a digitally compensated pressure and temperature transducer / transmitter, offering measurements from a single process point, reducing process penetration points and leaks. Krystal Bond™ Technology alone offers excellent non-linearity and non-repeatability performance. When it is combined with the ASIC, the AST20PT steps into its own league of high performance pressure sensing at an affordable price.

CE

Design Benefits

- Krystal Bond™ Technology
- ASIC Compensation
- Temperature Performance
- Real Time Thermal Compensation
- Real Time Linearity Correction

Applications / Industries

- Aerospace Hydraulic and Pneumatic Pressure Systems
- Analytical Instruments
- Hydraulic Pressure Equipment
- Hydrogen Pressure (Consult factory for media compatibility)
- Laboratory / Metrology Equipment
- Medical
- Military Vehicles
- Test Stands
-

*For units with loop-powered 4-20mA output, the pressure loop must be powered or the temperature output will not operate.



Sensor Wiring Information

Quick Contact

Performance @ 25°C (77°F)

Accuracy1
< 0.1% BFSL (Temp accuracy 2%TEB)[< 0.2% BFSL over 15,000 PSI]
Stability (1 Year)
0.1% FS, typical
Proof Pressure
2X Rated Pressure, standard (For higher proof pressures, contact factory)
Burst Pressure
5X or 50,000 PSI, whichever is less
Pressure Cycles
> 100 Million

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

Environmental Data

Temperature
Operating
Ambient -40 to 85C (-40 to 185F)
Media -55 to 125C (-67 to 257F)
Storage
-50 to 125C (-58 to 257F)
Thermal Limits
Compensated Range
0-70C (32 to 158F)
TC Zero
< 0.5% FS
TC Span
< 0.5% FS
Other
Shock
EN 60068-2-27
Vibration
EN 60068-2-6, 60068-2-64,
and IEC 68-2-32
EMI/RFI Protection
Yes
Rating
IP-66

 

Electrical Data

Output Signal
4-20mA*
1-5V, 0-5V
1-10V, 0-10V
0.5-4.5V Ratiometric
Excitation
10-28VDC
10-28VDC
15-28VDC
5VDC, Regulated
Current Consumption
-20 to 60C
< 10mA
< 10mA
< 10mA
Output Noise
< 1mV, RMS
< 1mV, RMS
< 1mV, RMS
< 1mV, RMS
Zero Offset
< 0.5% FS
< 0.5% FS
< 0.5% FS
< 0.5% FS
Span Tolerance
< 0.5% FS
< 0.5% FS
< 0.5% FS
< 0.5% FS
Output Load
0-800
Ohms@
10-28VDC
5k Ohms, min.
5k Ohms, min.
5k Ohms, min.
Reverse Polarity
Yes
Yes
Yes
Yes
Sampling Rate
400Hz
400Hz
400Hz
400Hz

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Datasheet

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Accessories

AST20PT Pressure Transducer Ordering Information

AST20PT
1
A
05000
P
4
E
0
H
000
PSI Pressure Pressure Measurement Code BARG Pressure Pressure Measurement Code
-14.7 to 25+ V0025+ -1 to 2+ V0002+
0-25 00025 0-2 00002
0-50 00050 0-5 00005
0-100 00100 0-7 00007
0-150 00150 0-10 00010
0-200 00200 0-20 00020
0-250 00250 0-35 00035
0-500 00500 0-50 00050
0-1,000 01000 0-70 00070
0-2,500 02500 0-100 00100
0-3,000 03000 0-250 00250
0-5,000 05000 0-350 00350
0-7,500 07500 0-500 00500
0-10,000 10000 0-700 00700
0-15,000 15000 0-1,000 01000
0-20,000 20000 0-1,400 01400
0-30,000 30000 0-2,000 02000
0-45,000 45000 0-3,000 03000
Typical pressures. All pressures between 0-25 PSI and 0-45,000 PSI available. +Compound pressure up to -14.7 to 500 PSI available. Please consult factory.
Series Type                  
Temperature Output
1= -40 to 85°C
(-40 to 185°F)
2= -40 to 125°C
(-40 to 257°F)
3= 0 to 70°C
(32 to 158°F)
4= -55 to 125°C
(-67 to 257°F)
5= -18 to 93°C
(0-200°F)
               
Process Connection
A = 1/4" Male NPT
B = 1/8" Male NPT**
P= 1/2" NPT Male***
W= F250C Female**** Autoclave
             
Pressure Measurement
Insert 5-digit pressure measurement code
           
Pressure Unit
B= BAR K= kg/cm2 P= PSI
         
Outputs
1 = 0.5-4.5V ratiometric 5 = 0-10V
2 = 0-5V 4 = 4-20mA
3 = 1-5V G = 1-10V
       
Electrical
A = 2 ft.(0.6m) I = DIN 43650-A
B = 4 ft.(1.2m) R = 6- Pin Bendix
C = 6 ft.(1.8m) S = 4- Pin Bendix
D = 10 ft.(3.0m) Y = M12x1
E = Mini DIN 43650  
     
Sensor Material
0= 17-4PH stainless steel 1= 316L+ stainless steel
2= Inconel 718** 6= Waspalloy**
   
Fail Condition
N= Not Specified H= Fail High L= Fail Low
 
Options
000= No Special Options
 
** Not available under 50PSI, not available in 316L *** Pressures up to 15,000 PSI ****Pressures from 10,000 to 45,000 PSI, not available in 316L

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Warranty

AST warrants that pressure transducers shipped will be free from defects in material and workmanship for a period of one (1) year from date of shipment.
For complete warranty information visit: http://www.astsensors.com/warranty.php

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