AST AST20HA Datasheet

Precision Pressure Transducer / Transmitter

AST20HA

The AST20HA is a digitally compensated precision pressure transducer / pressure transmitter that offers high performance over temperature. Krystal Bond™ Technology alone offers excellent non-linearity and non-repeatability performance. When it is combined with the advanced electronics, the AST20HA steps into its own league of high performance pressure sensing at an affordable price.

Environmental Data

Temperature

Operating -40 to 85°C (-40 to 185°F)

Storage -50 to 125°C (-58 to 257°F)

Thermal Limits

Compensated Range 0-70°C (30 to 158°F)

TC Zero <± 0.5% FS

TC Span <± 0.5% FS

Other

Shock 100G, 11 msec, 1/2 sine

Vibration 10G peak, 20 to 2000Hz

EMI/RFI Protection: Yes

Rating: IP-66

Benefits

Digital ASIC Compensation 

Superb Temperature Performance 

Real Time Thermal Compensation 

Real Time Linearity Correction 

Applications

Aerospace 

Analytical Instruments 

Hydraulics 

Hydrogen (Consult factory 

for media compatibility)

Turndown Capability 

Labs / Metrology 

Pressures up to 45,000 PSI 

Medical 

ABS (American Bureau of Shipping) 

Approved

Military 

Test Stands 

Performance @ 25°C (77°F)

Accuracy* < ±0.1% BFSL (<±0.2% BFSL over 15,000 PSI)

Stability (1 year) ±0.1% FS, typical

Proof Pressure ** 2X Rated Pressure, standard

Burst Pressure 5X or 50,000 PSI, whichever is less

Pressure Cycles > 100 Million

* Accuracy includes non-linearity, hysteresis & non-repeatability **For higher proof pressures, contact factory

Electrical Data

Output 4-20mA 0-5V, 1-5V 0-10V, 1-10V 0.5-4.5V Ratiometric

Excitation 10-28VDC 10-28VDC 15-30VDC 5VDC, Regulated

Current Consumption: - < 10mA < 10mA < 10mA

Sampling Rate 400Hz 400Hz 400Hz 400Hz

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 Protection Yes Yes Yes Yes

American Sensor Technologies • 450 Clark Dr., Mt. Olive, NJ 07828 • phone (973) 448-1901 • fax (973) 448-1905 • email: info@astsensors.com

Ordering Information*

AST20HA A 05000 P 4 0

Series Type

Process Connection

A = 1/4” NPT Male B = 1/8” NPT Male** C = 1/4” BSPP Male E = 9/16”-18 UNF Male [SAE6]

** Not available under 50PSI (1/8” NPT Male not available in 316L) *** Pressures up to 15,000 PSI ****Pressures from 10,000 to 45,000 PSI, not available in 316L

Pressure Range

Insert 5-digit pressure code

Pressure Unit

B= Bar K= kg/cm

Outputs

1 = 0 . 5 - 4 . 5 V r a t i o m e t r i c 2 = 0 -5 V ( 3 w i r e )

Electrical

(for wiring information visit: http://www.astsensors.com/wiring.php)

A= 2 ft.(0.6m) B= 4 f t. (1 .2 m) C = 6 f t . ( 1 . 8 m )

F = 7/16”-20 UNF Male [SAE4]** P= 1/2” NPT Male*** W= F250C Female Autoclave****

P= PSI

3= 1-5V 4= 4-20mA

D= 10 ft.(3.0m) E= Mini DIN 43650C I= DIN 43650A

5= 0-10V(3 wire) G= 1-10V

R= 6- Pin Bendix Y = M 1 2 x 1

000

Wetted Material

0=17-4PH 1=316 L (available up to 10,000 PSI) 2= Inconel 718 (consult factory on availability)

Fail Condition

N= Not Specied H= Fail High L= Fail Low

Options (contact factory for additional options) 000= No Options

*Minimum order quantities may apply to certain congurations, please contact factory for more information.

-14.7 to 25

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 0-100 00100

0-2,500 02500 0-250 00250

0-5,000 05000 0-350 00350

0-7,500 07500 0-500 00500

0-10,000 10000 0-700 00700

PSIG Measurement

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

All pressures between 0-25 PSI and 0-45,000 PSI available. ++Compound pressures up to -14.7 to 500 PSI available. Please consult factory.

www.astsensors.com

Pressure Ranges

V0025

Pressure Code

-1 to 2

BARG Measurement

V0002

Pressure Code

All specications subject to change without notice.

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