Precision Pressure Transducers / 0.1% Pressure Transmitters

AST20HA

AST20HA 0.1% Precision Pressure Transducer product photo

The AST20HA is a digitally compensated 0.1% 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 ASIC, the AST20HA 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
- Turndown capability

Applications

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

*Consult Factory for media compatibility

Performance @ 25°C (77°F)

Accuracy¹

<±0.1% BFSL(<±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 20,000 PSI, whichever is less

Pressure Cycles

>100 Million

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

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 (32 to 158°F)

Temp. Comp. Zero

<±0.5% FS

Temp. Comp. 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

4-20mA

1-5V, 0-5V

1-10V, 0-10V

0.5-4.5V Ratiometric

Excitation

10-28 VDC

15-30 VDC

5VDC, Regulated

Current Consumption

<10mA

Output Noise

<1mV, RMS

Zero Offset

<±0.5% FS

Span Tolerance

<±0.5% FS

Output Load

0-800 Ohms@10-28 VDC

5k Ohms, min.

Reverse Polarity

Yes

Sampling Rate

400Hz

Ordering Information

AST20HA

05000

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 ranges up to -14.7 to 500 PSI available. Please consult factory.

Series Type

Process Connection
A = 1/4” Male NPT
B = 1/8” Male NPT**
C = 1/4” Male BSPP
E = 9/16”-18 UNF Male [SAE6]
F = 7/16”-20 Male UNF [SAE4]**
P= 1/2” Male NPT***
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	4 = 4-20mA
2= 0-5V (3 wire)	5= 0-10 (3 wire)
3= 1-5V	G = 1-10V

Electrical

A = 2 ft.(0.6m)	E = Mini DIN 43650
B = 4 ft.(1.2m)	I = DIN 43650-A
C = 6 ft.(1.8m)	R = 6- Pin Bendix
D = 10 ft.(3.0m)	Y = Turck M12 4-Pin Eurofast

Wetted Material

0= 17-4PH

1= 316L

2= Inconel 718**

Fail Condition
N= Not Specified
H= Fail High
L= Fail Low

Options
000= No Special Options

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

(Minimum order quantities may apply to certain configurations, please contact factory for more information.)

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Warranty

AST warrants that units 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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