Pressure Transducers

AST46HA Explosion Proof Pressure Transmitter

AST46HA Explosion Proof Pressure Transmitter

AST46HA high accuracy explosion-proof pressure transmitter is CSA approved for use in hazardous areas. Applying digital compensation, this product offers top performance over a wide temperature range. Utilizing Krystal Bond Technology™, the sensing element will measure pressure in the most extreme temperature conditions. Where other sensor technologies will freeze or boil, the AST46HA uses a one piece stainless steel sensor to offer continuous operation.

Design Benefits
– High Accuracy: 0.1% BFSL
– CSA Class I/II Division 1 Explosion-proof
– ATEX / IECEx Flame-proof: Class I, Zone 1, Ex d IIC T5 Gb (Ta = -40°C to 85°C)
– ANSI/ISA – Certified “Single Seal” (no need for expensive secondary seal)
– ABS (American Bureau of Shipping) Approved
– CRN B31.3 Approval Available
– Excellent Accuracy and Performance over Cold and Hot Temperatures
– High Proof and Burst Pressure
– Consult Factory for Inconel 718 or Hastelloy C276

Applications / Industries
Well Optimization
– Oil and Gas Pipelines
– Drilling Platforms
– Marine & Offshore
– CNG / Hydrogen Fill Stations
– Paint Booths
– Cold Climate Drilling & Mining

Performance @ 25°C (77°F)

Accuracy1<±0.1% BFSL
Stability (1 Year)± 0.1% FS, typical
Proof Pressure2X Rated Pressure
Burst Pressure5X or 50,000 PSI, whichever is less
Pressure Cycles>100 Million
1 Accuracy includes: Non-linearity, Hysteresis and Non-repeatability

Environmental Data

OperatingAmbient: -40 to 85°C (-40 to 185°F) Media: -55 to 125°C (-67 to 257°F)
Storage-50 to 105°C (-58 to 221°F)
Thermal Limits
Compensated Range-30 to 55°C (-22 to 131°F)
TC Zero<±0.5% FS
TC Span<±0.5% FS
ShockEN 60068-2-27
VibrationEN 60068-2-6, 60068-2-64,
and IEC 68-2-32
EMI/RFI ProtectionYes

Electrical Data

Output Signal4-20mA 0-5V, 1-5V, 1-6V 0-10V, 1-10V 0.5-4.5V Ratiometric
Excitation10-28 VDC 10-28 VDC 15-30VDC 5VDC, Regulated
Current Consumption- <10mA <10mA <10mA
Output Noise<1mV, RMS <1mV, RMS <1mV, RMS <1mV, RMS
Zero Offset<±0.5% FS <±0.5% FS <±0.5% FS <±0.5% FS
Span Tolerance<±0.5% FS <±0.5% FS <±0.5% FS <±0.5% FS
Output Load0-800 Ohms
@10-28VDC 5k Ohms,min. 5k Ohms,min. 5k Ohms,min.
Reverse PolarityYes Yes Yes Yes
Sampling Rate400Hz 400Hz 400Hz 400Hz