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      Location: Home>Products Introduction>Press

      HM22 High - accuracy Pressure Transducer


      HM22 High - accuracy pressure transducer is a new pressure transducer jointly developed, researched, and produced by us and German HELM Company. HM22 High - accuracy pressure transducer is designed with Germany made high–accuracy force–sensitive chip as a central sensing and measuring element, using such new high technology as temperature automatic compensation and normalized circuit commissioning etc. to greatly enhance overall accuracy of the product. This product is designed with advanced technology, superior performance, reliable quality, and small dimension, which may widely be used for such scientific research and production fields as airspace and aerospace, petroleum, chemical, metallurgical and electric power, building material, hydrographic and geographic, medical, protection of environment etc. It may realize high–accuracy measurement of fluid pressure and liquid level.

      Features of Product

      ☆ Designed with Germany made high–accuracy force–sensitive chip as a central sensing and measuring element, with a accuracy up to 0.1% FS 

      ☆ Designed with sensor temperature automatic compensation and normalized circuit commissioning to enhance temperature stability indicator up to 0.1% FS / ℃. 

      ☆ May measure corrosive and easily crystalline medium under special requirements 

      ☆ Designed with fully enclosed structure, all structural members made of stainless steel, which may be used in the open air for a long time. 

      ☆ May be used for the site with online temperature measuring for a long time and without calibration. 

      ☆ May be used for hazardous site, with intrinsically safe type Ex ia II CT5 

      ☆ Structural diversification, design may be customized at the customer’s special requirements.

      Application of Product


      Measuring range

      -100KPa ~ 0 ~ 5KPa … 100MPa

      Permissible over    pressure

      Two times of    full–scale pressure (where 1.1 times of    full–scale pressure for the 100MPa product.

      Type of pressure

      Gauge pressure or    absolute pressure

      Medium to be measured

      The gas or liquid    compatible with 316 stainless steel ,

      Overall accuracy
                 (Non-linear, repeatability,    lagging)

       ± 0.1% FS 

       ± 0.25% FS

      Long-term stability

      Typical:  ± 0.1% FS / year      

      Maximum:  ± 0.2% FS / year

      Zero point temperature    drifting

      Typical:  ± 0.01% FS / ℃

      Maximum: ± 0.15% FS / ℃

      Sensitivity    temperature drifting

      Typical:  ± 0.01% FS / ℃

      Maximum: ± 0.15% FS / ℃

      Working temperature


      Compensating    temperature


      Ambient temperature


      Range of power    supplying

      12 ~ 36V DC( generally    24V DC)

      Signal output

      4~20mA / 1-5V DC / 0~5V DC / 0.5~4.5V DC

      Load resistance

      ≤(U - 12) / 0.02Ω

      Enclosure Protection degree

      Plug type (IP65); cable type (IP67)

      Safe explosion–proof

      Ex ia II CT5

      Tolerance of vibration

      ≤ ± 0.01% FS(Axles X, Y,    and Z, 200Hz / g) 

      Response time


      Thermal lagging

       ± 0.1% FS (typical)

      Insulation resistance

      100MΩ, 500V DC


      Approx. 250g

      Product selection


      High - accuracy Pressure Transducer


      Guideline of Selection

      High - accuracy Pressure Transducer


      Type of pressure

      Gauge pressure (G, may not be indicated); absolute pressure (A)




      Measuring Range



      0 ~ X KPa or 0 ~ X KPa







      Overall accuracy (linear + repeatability + lagging)







       ± 0.25% FS







       ± 0.1% FS









      Signal Output









      4 ~ 20mA









      1 ~ 5V DC









      0 ~ 5V DC









      0.5 ~ 4.5V DC











      Additional functions











      M20 x 1.5 external thread











      G 1 / 4 external thread






















      Cable type (IP67, 2m)











      Socket type (IP65, DIN3650)











      Flushed membrane type











      Intrinsically safe explosion - proof type Ex ia II CT5













      HM22 ( 0 ~ 10KPa)



      — 3

      — A1

      — F1

      — W2 High - accuracy Pressure Transducer

      Tips of Selection

      1. The medium to be measured shall be compatible with the material contacting with the product.
      2. The code E, an additional functional code for selection, and intrinsically safe explosion-proof Ex ia II CT5 must be power supplied via safety barrier.
      3. Please contact us in case of the other special requirements and clearly indicate them when placing an order.


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