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AST20PT

Stainless Steel Media Isolated Pressure Temperature Sensor

The AST20PT is a digitally compensated pressure-temperature dual output 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.

Benefits

- Krystal Bond Technology™
- ASIC Compensation
- Temperature Performance
- Real Time thermal compensation
- Real Time linearity correction

Applications

- Aerospace Hydraulic and Pneumatic Pressure Systems
- Analytical Instruments
- Hydraulic Pressure Equipment
- Hydrogen Pressure*
- Laboratory / Metrology Equipment
- Medical
- Military Vehicles
- Test Stands

Click Here For Wiring Information

Performance @ 25°C (77°F)

Accuracy¹

< ± 0.1% BFSL

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 85°C (-40 to 185°F)
Media -55 to 125°C (-65 to 250°F)

Storage

-50 to 125°C (-58 to 250°F)

Thermal Limits

Compensated Range

0-70°C (30 to 158°F)

Temp. Comp. Zero

< ± 0.5% FS

Temp. Comp. Span

< ± 0.5% FS

Other

Shock

100G, 11msec, 1/2 sine

Vibration

10G peak, 20 to 2000Hz

EMI/RFI Protection

Yes

Rating

IP-66

Electrical Data

Output

4-20mA

1-5V, 0-5V

1-10V, 0-10V

0.5-4.5V Ratiometric

Excitation

10-28VDC

15-28VDC

5VDC, Regulated

Current Consumption

-20 to 60°C

< 10mA

Output Noise

< 1mV, RMS

Zero Offset

< ± 0.5% FS

Span Tolerance

< ± 0.5% FS

Output Load

0-800
Ohms@
10-28VDC

5k Ohms, min.

Reverse Polarity

Yes

Sampling Rate

400Hz

Ordering Information

AST20PT

05000

000

PSI Measurment Range	Pressure Range Code	BARG Measurement Range	Pressure Range 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
Typical ranges. All ranges between 0-25 PSI and 0-20,000 PSI available. **Compound ranges 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 250°F)
3= 0 to 70°C
(30 to 158°F)
4= -55 to 125°C
(-65 to 250°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 Range
Insert 5-digit pressure range code

Pressure Unit

B= BAR

K= kg/cm2

P= PSI

Outputs

1= 0.5-4.5V ratiometric	5= 0-10 (3 wire)
2= 0-5V (3 wire)	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 = Turck M12 4-Pin Eurofast
E = Mini DIN 43650

Wetted Material

0= 17-4PH	1= 316L+
2= Inconel 718**	6= Waspalloy**

Fail Condition

N= Not Specified

H= Fail High

L= Fail Low

Options
000= No Special Options

*1/8" NPT Male not available under 50PSI or with 316L
**Consult factory on availability
+316L available up to 10,000 PSI

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 installedwhere the application exceeds published ratings. AST’s sensors are made with pride in New Jersey, USA. If in the area please feel free tostop by for a visit! Installation/Applications - The purchaser is responsible for media compatibility, functional adequacy, and correct installation of the transmitter.

Datasheet
w/ Dimensions

Accessories

AST20PT

Benefits

Applications

Performance @ 25°C (77°F)

Environmental Data

Electrical Data

Ordering Information

Quick Contact

Warranty