Metal Capacitive Pressure Sensor

Brand: Xi'an UTOP Measurement Instrument Co, Ltd

UPX3351 metal capacitive pressure sensor uses two plate capacitors as sensitive elements.

The sensor is a complete welded-sealing module, the processing pressure is transmitted to the diaphragm of sensitive element through isolated diaphragm and filled silicon oil, to cause the capacity boards  displacement to change, thus makes the changes of capacitive signal. 

This metal capacitive pressure sensor can have capacitance signal directly, simultaneously the  amplified circuit can also be installed in sensor's neck, to make it have 4~20 mA standard output signal.
Features
  • All-welded structure, suitable for measuring many kinds of media
  • Isolated diaphragm material: 316L, Hastelloy-C, Monel, Tantalum
  • Measuring ranges: -100…0 kPa~1.6 kPa…40 MPa
  • System pressure up to 312 bar for differential applications
  • Pressure type: gauge pressure, absolute pressure, micro differential pressure and differential pressure 
  • High quality metal capacitive pressure sensor

Specifications

Pressure Medium

  • Gas or Liquids Compatible to 316L, Hastelloy C, Tantalum or Monel

Pressure Ranges

  • -100...0 kPa ~ 1.6 kPa...40,000 kpa

Pressure Type

  • Gauge
  • Absolute
  • Sealed Gauge

System Pressure

  • 10 MPa for Differential Pressure
  • 4 MPa for Micro Differential Pressure
  • 32 MPa for High System Pressure Differential Pressure

Output Signal

  • Capacitive Signal or 4~20 mA

Accuracy

  • 0.2 % Full Scale (Standard), 0.5 % Full Scale

Long-Term Stability

  • < 0.2 % Full Scale/year

System Pressure Effect on Zero

  • 0.5 % Full Scale

Operating Temperature Range

  • -40° C ~ +100° C

Storage Temperature Range

  • -40° C ~ +120° C

Temperature Coefficient of Zero

  • 0.25 % Full Scale/55° C

Temperature Coefficient of Span

  • 0.5 % Full Scale/55° C

Insulation Resistance

  • 500 MΩ @ 100 Vdc

Diaphragm Material

  • 316L
  • Optional: Hastelloy C, Tantalum or Monel

Electrical Interface

  • 5 Colored PVC wires of Differential Capacitive Signal and Temperature Signal
  • 2 Colored PVC Insulated Wires of 4~20 mA Current Loop

Filled Oil

  • Silicone Oil

  • Widely Used in Drugs Manufacturing, Food Industry as well as Environmental Protection etc.

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