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DMD 831 Differential Pressure Transmitter with Display and Contact for Fluids and Gases

Meet the DMD 831, a top-notch pressure measurement device featuring dual high-performance piezoresistive stainless steel sensors for unmatched precision and reliability. It covers a broad differential pressure range from 0 … 1 bar to 0 … 70 bar. Designed with a rotatable display and pressure port, it offers flexibility and ease of use for industrial processes, HVAC systems, and more. The DMD 831 is your reliable choice for superior pressure sensing.

DMD 831 Pressure Transmitter Product Parameters

  • Pressure Ranges: Nominal 1 bar to 70 bar; Differential 0 … 70 bar.
  • Output Signal: Standard 3-wire: 4 … 20 mA, 24 VDC.
  • Accuracy: ≤ ± 1% BFSL; Switching accuracy ≤ ± 0.5% FSO.
  • Electrical Connections: Permissible load 500 Ω; Short-circuit and reverse polarity protection.
  • Process Connections: Stainless steel 1.4404 (316L) pressure port.
  • Media Compatibility: Suitable for fluids and gases; Temperature -40 … 125 °C.
  • Special Features: 4-digit red LED display, programmable damping, IP 65 protection.

Product Highlights

The DMD831 Pressure Transmitter is an advanced device designed to accurately measure differential pressure in a wide range of applications. Equipped with two piezoresistive stainless steel sensors, this transmitter can handle pressures ranging from 0 to 1 bar up to 0 to 70 bar. One notable feature of the DMD831 is its selectable display mode, allowing users to easily toggle between displaying positive pressure (P+), negative pressure (P-), or the differential pressure (∆P) itself. Moreover, both the display and pressure ports are rotatable, providing flexibility in installation and ensuring convenient accessibility. With its reliable and versatile design, the DMD831 Pressure Transmitter is an excellent choice for various industrial and commercial pressure monitoring needs.


  • Mechanical and plant engineering
  • Chemical industry
  • Energy industry
  • HVAC
  • Food and beverage

To download the latest datasheet click here: DMD 831

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