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HPM20F Flange Diaphragm Digital Pressure Transmitter

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The HPM20F Flange Diaphragm Pressure Transmitter utilizes an international standard flange interface for easy field installation. It features advanced technology and incorporates a highly stable and reliable silicon piezoresistive pressure sensor as the signal measuring component. The sensor undergoes automatic testing and laser trimming to ensure wide temperature compensation. This product delivers stable and reliable performance, having successfully passed rigorous testing and long-term aging tests. The HPM20F is designed to meet requirements for corrosion resistance and hygiene, making it suitable for pressure measurement in various industries including machinery, metallurgy, petrochemical, power generation, food processing, and pharmaceuticals.


  • Designed for measuring corrosive fluids.

  • Suitable for media prone to clogging due to solid suspensions or high viscosity.

  • Ideal for media that may crystallize or solidify in the pressure tube.

  • Allows for flushing of the pressure port to prevent media contamination.

  • Meets high hygiene standards to prevent contamination.


  • Offers a variety of materials for the isolation diaphragm, with a high level of corrosion resistance.

  • Designed in a hygienic style for easy cleaning without any inaccessible areas.

  • Constructed with an aluminum alloy shell, featuring IP65-rated protection against ingress.

  • Equipped with a field display, 4-20mADC signal output, and various other communication signals.

  • Includes protection against polarity reversal, overcurrent, and overvoltage.

  • Allows for zero-scale and full-scale adjustment.

  • Provides strong immunity to interference and ensures long-term stability.

Technical Parameters

Measuring Medium

Liquid, Gas, Steam

Pressure Range



1.5 times pressure range of full scale

Pressure Type

Gauge, Absolute or Sealed Gauge



Long-term Stability


Temperature Coefficient of Zero

±0.03%FS/℃(Reference 25℃)

Temperature Coefficient of Full Scale

±0.03%FS/℃(Reference 25℃)

Working Temp


Supply Voltage

24VDC (12~30V)

Output Signal

4~20mADC or customized

Output Mode

Two wire, Three wire

Load Resistance


Insulation Resistance


Ingress Protection of Shell


Electrical Connection

Dedicated shield cable

Our product philosophy is specialization, customization, and intelligence.

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    Add : Room 201, Building 5, No.18, Fenghua Road, Yuhua Economic Development Zone, Nanjing, Jiangsu,China
    Phone : +86-13270442058
    E-mail : info@hjsensor.com
   Whatsapp : +86-13270442058
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