AST AST44LP Datasheet

TM

Intrinsically Safe

AST44LP Low Pressure Transducer / Transmitter

The AST44LP is a stainless steel pressure transducer with a wide variety of
options. With its rugged construction and the best price-to-performance ratio
in the industry, the AST44LP is the solution for low pressure measurement in
Intrinsically Safe areas.

Environmental Data

Temperature

Operating -40 to 80°C (-40 to 176°F)

Storage -40 to 100°C (-40 to 212°F)

Thermal Limits

Compensated Range 0 to 55°C (32 to 132°F)

TC Zero <±1.5% of FS

TC Span <±1.5% of 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

Benefits

Class 1 Div 1 Groups C,D when installed 

with an approved barrier

Class I Zone 0 Exia IIB T4 Ga 

(Ta = -40°C to +80°C)

High Strength Stainless Steel Construction 

No Internal O-rings 

Wide Operating Temperature 

Pressures from 0-1 to 0-15 PSI 

Low Static and Thermal Errors 

Unparalleled Price and Performance 

Applications

Industrial OEM Equipment 

HVAC/R Equipment 

Water Management 

Control Panels 

Pneumatics 

Hydraulic Systems 

Vapor Recovery 

Data Loggers 

External Tank Levels 

Compatible with Wide Variety of Liquids 

and Gases

For UL certied barrier drawing, see A01657.

For CSA certied barrier drawing, see A08949.

Performance @ 25°C (77°F)

Accuracy* < ±0.25% BFSL (< ±0.5% BFSL for 0-1 PSI)

Stability (1 year) ±0.25% FS, typical

Over Range Protection 2X Rated Pressure

Burst Pressure 5X or 75 PSI (whichever is less)

Pressure Cycles > 100 Million

* Accuracy includes non-linearity, hysteresis & non-repeatability

Electrical Data

Output 4-20mA 1-5VDC 1-6VDC

Excitation 10-28VDC 10-28VDC 10-28VDC

Output Impedance >10k Ohms <100 Ohms, Nominal <100 Ohms, Nominal

Current Consumption: 20mA, typical 5mA, typical 5mA, typical

Bandwidth (-3dB): DC to 250 Hz (-3dB): DC to 1kHz (-3dB): DC to 1kHz

Output Noise: - <2mV RMS <2mV RMS

Zero Offset: <±1% of FS <±1% of FS <±1% of FS

Span Tolerance: <±2% of FS <±1.5% of FS <±1.5% of FS

Output Load: 0-800 Ohms@10-28VDC 10k Ohms, Min. 10k Ohms, Min.

Reverse Polarity Protection

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

Yes Yes Yes

TM

Ordering Information

AST44LP A 00005 P 4 1

Series Type

Process Connection

A= 1/4” NPT Male
C= 1/4” BSPP Male

Pressure Measurement

Insert 5-digit pressure code

Pressure Unit

H= Inches H

O

2

Outputs

3= 1-5V 4= 4-20mA (2 wire loop powered) 6= 1-6V

Electrical

A= 2 ft. (0.6m)
B= 4 ft. (1.2m)
C= 6 ft. (1.8m)
D= 10 ft. (3.0m)

Wetted Material

1= 316L 4= Hastelloy

P= PSI

I= 1/4” NPT Female
P= 1/2” MNPT

E= Mini DIN 43650
F= Packard Metripack 150 3-Pin
I= DIN 43650A
L= Conduit, Cable 2 ft. (0.6 m)

M= Conduit, Cable 4 ft. (1.2 m)

(consult factory on availability)

N= Conduit, Cable 6 ft. (1.8 m)
P= Conduit, Cable 10 ft. (3 m)
R= Bendix 6 Pin
4 = Mini-Fast (CSA Only)
Y= M12x1

E -SS

000

Options

000= No Options

Approval

(Left Blank)= UL ANSI/ISA 12.12.01 Class I Div 1 Intrinsically Safe Groups C, D (formerly UL913)

-SS= Add “-SS” for CSA157 Class I Div 1 Groups C, D Intrinsically Safe and ANSI/ISA 12.27.01 Single Seal Approval and SIRA ATEX Exia IIB
Class I, Zone 0, T4

Note: CSA approved products require case/earth ground electrical connection.
See wiring installation sheet for further details

Pressure Ranges

0-1

+

0-2.5

0-5 00005

+

0-7.5

00001

00069

00208

Pressure Code

PSIG Measurement

+

2.5 and 7.5 PSI Sensor must be ordered in inches of H2O.

0-10 00010

0-15 00015

www.astsensors.com

© 2014 American Sensor Technologies Inc. AST44LP 06/18/2014.

All specications subject to change without notice.