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Where other sensor technologies will freeze or boil, the AST46HA uses a one piece stainless steel sensor to offer continuous operation. The base sensor's signal is amplified using a digital ASIC to perform over a wide temperature range. The pressure transducer is design for outdoor environments, from remote SCADA installations to compressor stations.  


  • Class I Zone 1 Group IIC / Class I Div 1 Groups A, B, C, D Explosionproof / Class II Div 1 Groups E, F, G Dust Ignition-proof
  • ATEX / IECEx: Class I, Zone 1, Ex d IIC T5 Gb (Ta = -40°C to 85°C) 
  • ANSI/ISA- Certified “Single Seal” (no secondary seal required) 
  • ASIC Compensation
  • ABS (American Bureau of Shipping) / DNV Approved 
  • Superb Temperature Performance 
  • Wide Operating Temperature 
  • Excellent Accuracy 
  • High Proof and Burst Pressure 
  • Exotic Alloys Available

Please review product documents or contact us for the latest agency approval information.  

Product Type Features

  • Sensor Type  Explosion Proof Pressure Transducer

  • Type  Absolute, Compound, Gage, Sealed

Electrical Characteristics

  • Supply Voltage (V) 10 – 28, 15 – 30, 4.75 – 5.25

  • Electrical Connection  Conduit 2 ft Leads, Conduit 2m Leads, Conduit 4 ft Leads

Body Features

  • Port Material  17-4PH, 316L, Alloy 718, Alloy C276

  • Pressure Port/Fitting  1/2 MNPT, 1/4 FNPT, 1/4 MBSPP, 1/4 MNPT, 7/16-20 UNF Male, 9/16-18 UNF Male 37°, F250C Female, G1/4 3852 Male

Usage Conditions

  • Operating Temperature -40 – 85 °C [ -40 – 185 °F ]


  • Pressure Range  0-1 to 20000psi

  • Output/Span  0.5–4.5V, 0–10V, 0–5V, 1 – 10V, 1–5V, 1–6V, 4–20mA

  • Accuracy  ±0.1% FSO

  • Overpressure  2X, Min


  • Options  ASME B31.3 (CRN), Fault Condition Setting, Snubber

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