AST AST20PT Datasheet

Precision Pressure & Temperature Transmitter

AST20PT

The AST20PT is a digitally compensated pressure and temperature dual
output transmitter, offering measurments 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.

TM

PRESSURE & TEMPERATURE

Environmental Data

Operating Ambient Temperature -40 to 85°C (-40 to 185°F)

Operating Media Temperature -55 to 125°C (-67 to 257°F)

Storage Temperature -50 to 125°C (-58 to 257°F)

Thermal Limits

Compensated Range 0-70°C (32 to 158°F)

TC Zero < ± 0.5% FS

TC Span < ± 0.5% FS

Other

Shock 100G, 11msec, 1/2 sine

Vibration 10G peak, 20 to 2000Hz

EMI/RFI Protection: Yes

Rating: IP-66

Benefits

 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

 Medical

 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

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 Ye s

American Sensor Technologies • 450 Clark Dr., Mt. Olive, NJ 07828 • phone [phone] • fax [phone] • email: [e-mail]

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

0-5V, 1-5V 0-10V, 1-10V 0.5-4.5V Ratiometric

AST20PT 1 00500 P E3 1 H 00A

Series Type

Temperature Output Range

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” NPT Male
B= 1/8” NPT Male**
P= 1/2” NPT Male***
W= F250C Female Autoclave****

** 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

Pressure Range

Insert 5-digit pressure code

TM

Ordering Information*

Pressure Unit

B= Bar K= kg/cm

2

Outputs

1= 0.5-4.5V ratiometric
2= 0-5V

Electrical

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

A= 2 ft.(0.6m)
B= 4 ft.(1.2m)
C= 6 ft.(1.8m)

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

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

Wetted Material

0=17-4PH
1=316L (available up to 10,000 PSI)

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.

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-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

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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

P= PSI

5= 0-10V
G= 1-10V

R= 6- Pin Bendix
Y= M12x1

2= Inconel 718 (consult factory on availability)
6= Waspalloy (consult factory on availability)

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V0025

Pressure Code

Pressure Ranges

BARG Measurement

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-1 to 2

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V0002

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Pressure Code

© 2014 American Sensor Technologies Inc. AST20PT 08/12/2014.

All specications subject to change without notice.