Instruction Manual

TM
American Sensor Technologies • 450 Clark Dr., Mt. Olive, NJ 07828 • phone [phone] • fax [phone] • email: [e-mail]
Environmental Data
Temperature
Operating -40 to 85°C (-40 to 185°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
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
Yes Yes Yes
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
Applications
Flare Gas 
Water Management 
Industrial OEM Equipment 
Oil & Gas Platforms 
Pressure Instrumentation 
Process Control 
Gas Compression & Storage 
Test Stands 
Oxygen Delivery Systems 
External Tank Level 
Benefits
Class I Div 2 Groups A, B, C, D 
High Strength Stainless Steel Construction 
No Welds or Internal O-rings 
Wide Operating Temperature 
Pressures from 0-1 to 0-15 PSI 
Low Static and Thermal Errors 
Unparalleled Price and Performance 
Compatible with Wide Variety of Liquids 
and Gases
EMI/RFI Protection 
The AST43LP is a low pressure Class I Division 2 stainless steel pressure
transmitter for use in hazardous areas. In addition to its rugged construction and
the best price-to-performance ratio in the industry, the AST43LP is the solution for
low pressure measurement for a variety of applications.
* Accuracy includes non-linearity, hysteresis & non-repeatability
Non-Incendive
AST43LP Low Pressure Transducer / Transmitter