Ametek 831 Fixed Range Pressure Transmitter

Ametek 831 Fixed Range Pressure Transmitter

Ametek Transmitters from Automation Service

831 Fixed Range Pressure Transmitter

Ametek - U.S. Gauge

831 Fixed Range Pressure Transmitter

Pressure Measurement

Description - The Model 831 transmitter is weatherproof and capable of a direct spray with forces up to 200 psi without internal leakage.

The Model 831 (standard and low power) has FM and CSA explosion-proof ratings. The 831D (differential pressure) also carries the CSA explosion-proof rating. All Model 831s meet NACE standards for offshore applications.

The standard Model 831 and the Model 831D feature a 4 to 20 mA output standard with a 12 to 30 VDC power supply. The Model 831 Low Power provides a three wire 1-5 or 0.8-3.2 voltage output and requires less than 30 milliwatts of total power to operate.

The combination of low power requirement, small size, excellent performance and low price make the Model 831 Low Power Transmitter ideal for critical outdoor applications. This model requires 6 or 8-14 VDC excitation and is available in pressure ranges from 15 to 5000 psi.


  • Available in Differential Pressure, Low Power or Standard version

  • All welded 316L stainless steel construction and wetted parts

  • 3/4 inch NPT female conduit connection cable

  • 1/2 inch NPT female pressure port

  • 24 inch cable length standard

  • All models are CSA approved, explosion proof, and meet NACE standards for off-shore applications

  • The Low Power and Standard versions are FM approved with the explosion proof rating


  • Model 831 Standard

    • Available in pressure ranges from 6 psig to 5000 psig

    • Rugged construction

    • Available with conduit adapter

    • Optional EMI protection

  • Model 831 Low Power

    • Available in pressure ranges from 6 psig to 5000 psig

    • 8 to 14 or 6 to 14 VDC with reverse polarity protection

    • Perfect for solar or battery applications

    • Current draw < 3 mA

    • Optional EMI protection

  • Model 831D

    • Measures differential pressure

    • Available in pressure ranges from 6 psid to 500 psid



All remanufactured products:

  • 2-3 Weeks Standard Delivery
  • 2-5 Days Expedited Delivery
  • Need it sooner? call us today at 1-800-325-4808


– U.S. Gauge products:

  • 4-8 weeks

Rotork® electric actuators

  • Please contact us for delivery


All remanufactured products are covered by our 2 year service warranty. Please click here to view full warranty.

Ametek® – U.S. Gauge Products are covered by the original manufacturer’s warranty. Please click here for warranty information.

Rotork® Electric Actuators – please contact us for warranty information.

New Foxboro® products are covered by a 1 year service warranty by the original manufacturer.