Shenzhen Dongfangwanhe Instruments Co., Ltd

WHsensorsWet/Wet Differential Pressure Sensor

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Differential pressure measurement is the difference in pressure between two points in a system. For filtration applications, the upstream side [A] is positioned before the filter [B], whereas the downstream side [C] is after the filter. A differential pressure sensor can be used to monitor the cleanliness of a filter in either liquid or gas applications.

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The WH202 differential pressure (DP) transducer can measure line pressures up to 5,000 PSI with a turndown ratio of 15 to 1.

The WH202 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 WH202 can be used to measure differential pressure across a filter, monitor level in a sealed or vented tank, or calculate flow across an orifice plate.

With its digital compensation, this series 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 WH202 also offers excellent flexibility in its configuration, allowing for a variety of
sensor materials and pressure ports.

  • Oil Free - No Oil filled cavities
  • to contaminate the process
  • Unique Single Diaphragm Design
  • High Proof Pressure Rating
  • on Both Sides
  • High Strength Stainless Steel
  • Construction
  • No Internal O-Rings or Elastomers
  • Compact Size
  • Line and DP Pressure up to 1000PSI
  • (70 Bar)
  • mV and High Level Outputs
  • Increased Resolution and Accuracy
  • when compared with using two sensors
  • Simplified Installation

  • Water Filtration for Residential
  • & Commercial Works
  • Fuel Filter Condition Monitoring
  • for Diesel Engines
  • Flow Measurements
  • Hydrogen Fuel Cells
  • Transmissions
  • Chillers
  • Medical