• Explosion Proof and Non-Incendive models available
    • AST5400: Standard
    • AST54ED: Explosion-proof
    • AST54EN: Non-incendive
  • ABS (American Bureau of Shipping) approved
  • Krystal Bond™ technology
  • ASIC compensation
  • Turn-down capability
  • Both or either pressure port can see full line pressure - No expensive balancing valves required
  • Line pressure up to 5,000 PSI (350 Bar)
  • Smart electronics with failure condition protection
  • Wide variety of materials for a variety of liquids and gases


The AST5400 differential pressure (DP) transducer can measure line pressures up to 5,000 PSI with a turndown ratio of 15 to 1. Using Krystal Bond™ Technology, the AST5400 contains no silicone oil, O-rings, or welds. This MEMS pressure sensor technology completely isolates the media to the pressure ports, thus eliminating contamination risk. The low strain level on the diaphragm results in accurate, repeatable measurements. The AST5400 can be used to measure differential pressure across a filter, monitor level in a sealed or vented tank, or calculate flow ac ross an orifice plate.

With its digital compensation, the AST5400 offers excellent linearity and performance over temperature. The electronics now offer a fail safe condition on the output signal. If the transducer were to experience a fault condition, the transducer can be programmed to rail the output signal to 10% below the minimum or 10% above maximum output signal to notify the user of an issue and protect the system from undesirable conditions. The AST5400 also offers excellent flexibility in its configuration, allowing for a variety of sensor materials and pressure ports.

Applications for the AST5400 differential pressure transducer:

  • Aerospace
  • Analytical Instruments
  • Fuel Systems
  • Hydraulics
  • Hydrogen (316L only)
  • Labs / Metrology
  • Medical
  • Military
  • Test Stands
  • Desalination Equipment (Inconel718 Recommended)


This product can be used in the following applications: