User Manual

TM
American Sensor Technologies • 450 Clark Dr., Mt. Olive, NJ 07828 • phone [phone] • fax [phone] • email: [e-mail]
Performance @ 25°C (77°F)
Accuracy* < ±0.25% BFSL
Stability (1 year) ±0.25% FS, typical
Over Range Protection 2X Rated Pressure
Burst Pressure 5X Rated Pressure or 45,000 PSI, whichever is less
Pressure Cycles > 100 Million
Electrical Data
Output 4-20mA 1-5VDC
Excitation 8-28VDC 8-28VDC
Output Impedance >10k Ohms <100 Ohms, Nominal
Current Consumption: 25mA, typical 2mA, typical
Bandwidth (-3dB): DC to 1kHz (-3dB): DC to 1kHz
Output Noise: - <2mV RMS
Zero Offset: <± 0.5% of FS <± 0.5% of FS
Span Tolerance: <± 1.0% of FS <± 1.0% of FS
Output Load: 0-800 Ohms@8-28VDC 5k Ohms, Min.
Reverse Polarity Protection Yes Yes
AST46DS CSA Certified: Class I & II Division 1 & 2 | Class III
Environmental Data
Temperature
Operating -40 to 85°C (-40 to 185°F)
Display Operating -30 to 80°C (-22 to 176°F)
Storage -55 to 105°C (-67 to 221°F)
Thermal
Limits
Compensated Range 0 to 55°C (30 to 130°F)
TC Zero <±1.0% of FS
TC Span <±1.0% of FS
Other
Shock 100G, 11 msec, 1/2 sine
Vibration 10G peak, 20 to 2000 Hz.
EMI/RFI Protection: Yes
Enclosure Rating: Suitable for Outdoor Use; Type 4X Rated
Pollution Degree 2 (interior of enclosure)
Measurement
(Installation) Category
I
Altitude 2000m
Explosion-Proof Pressure Transducer / Transmitter with Display
AST46DS explosion proof pressure transducers features the latest advances in
transducer technology. With a power supply as low as an 8VDC and low current
consumption, the AST46DS can operate in remote areas with minimal power. The
re-zeroing function, allows for eld calibration in a safe environment to further enhance
well site or system readings. Pressure ranges are available up to 20,000 PSI; these
explosion-proof pressure transducers and transmitters are designed for all common oil
and gas pressures from shallow to deep wells.
Explosion Proof: Class I & II Division 1 / 2 Groups A, B, C, D, E, F, G

Class III Division 1 & 2 
ANSI/ISA 12.27.01-2003 Single Seal Approved 
ABS (American Bureau of Shipping) Approved 
Display Units: PSI | Bar | kpa | Mpa | kg/cm 
2
| in WC | Volts | mA
Applications
SCADA systems 
Wellhead systems 
Compressor systems and 
stations
Pipeline instrumentation

Power generation equipment 
Offshore platforms 
Oil and gas pressure 
monitoring
Test systems

Benefits
Low current consumption voltage output 
Re-zero push-button functionality 
Display pressure units or output signal 
Accurate, repeatable sensor technology 
Rugged design withstands harsh outdoor 
environments
Available in exotic alloys

High quality, NEMA 4X case and nish 
withstands salt spray and outdoor environments