Products

AST46DS explosion proof pressure transducers feature the latest advances in transducer technology. Capable of using a power supply as low as an 8VDC and low current consumption, the AST46DS pressure transducer can operate in remote areas with minimal power. The re-zeroing function, allows for field calibration in a safe environment to further enhance well site or system readings. Pressures are available up to 20,000 PSI; AST46DS 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
ATEX and IECEx Ex d IIC T5 Gb
ANSI/ISA 12.27.01-2003 Single Seal Approved
ABS (American Bureau of Shipping) Approved
Display Units: PSI | Bar | kpa | Mpa | kg/cm2 | in WC | Volts | mA

Design 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 finish withstands salt spray and outdoor environments

Applications / Industries
SCADA systems
– Wellhead systems (casing, tubing, hydraulic, vapors…)
– Compressor systems and stations
– Pipeline instrumentation and odorizing equipment
– Power generation equipment
– Offshore platforms and BOP’s requiring salt spray protection and NEMA 4X rating
– Oil and gas pressure monitoring
– Test systems

Performance @ 25°C (77°F)

Accuracy1<±0.25% BFSL
Stability (1 Year)±0.25%FS, typ
Proof Pressure2X Rated Pressure
Burst Pressure 5X Rated Pressure or 45,000 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-55 to 105°C (-67 to 221°F)
Thermal Limits
Compensated Range0 to 55°C (32 to 131°F)
TC Zero<±1.0% of FS
TC Span<±1.0% of FS
Other
Shock100G, 11 msec, 1/2 sine
Vibration10G peak, 20 to 2000 Hz.
EMI/RFI ProtectionYes

Electrical Data

Output Signal4-20mA 1-5VDC
Excitation8-28VDC 8-28VDC
Output Impedance>10k Ohms <100 Ohms, Nominal
Current Consumption25mA, 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 Load0-800 Ohms @ 8-28VDC 5k Ohms, Min.
Reverse PolarityYes