Pressure Transmitter

This pressure transmitter has been designed to be used in corrosive liquids and gases and allows stable precise measurements of the absolute pressure up to 1000 bar.

The pressure sensor is a piezoresistive full bridge OEM-transducer of high sensitivity manufactured by Keller, a swiss company. The transducer as well as its diaphragm is made of stainless steal AISI 316/316 L and built in a pressure resistant housing of titanium. The transducers have associated SMD amplifiers with temperature compensation in the range of 0°C to 50°C.

Connection to a data aquisition system can be realized in two wire transmitter technique 4 - 20 mA or three wire technique 0 - 10 volt via a 4 pole underwater connector.

Each transmitter is shipped with an individual calibration certificate. Calibration is executed with a pressure gauge as secondary standard with 0,025 % accuracy.

Specifications

  • Available ranges: 5, 10, 20, 50, 100, 200, 400, 600, 1000 bar
  • Accuracy: Class 0,5 %
  • (calibration of manufacturer)
  • Temperature compensation: 0°C - 50°C
  • Accuracy with individual calibration: 0,2 % (refer to calibration sheet)

Mechanical characteristics

  • Total length (with SUBCONN BH4F): 128 mm
  • Diameter: 40 mm
  • Weight in air: 0,4 Kg
  • Standard connector : SUBCONN BH4F Titanium or MCBH4F Titanium
  • Pressure resistance of housing: 1000 bar
  • Pressure resistance of connector : 1000 bar
  • Connection to a pressure gauge : female thread G1/4 ISO 228-1, depth 13mm
  • Sealing: 2 O-rings 20 * 2 mm

Electrical charateristics

  • Excitation: 8 - 28 VDC
  • Signal: 4 - 20 mA or 0 - 10 VDC
  • Max. Load resistance: (u-10)/0,02 Ohm
  • Current consumption: < 4 mA (no load)
  • Insulation: >100 MOhm

Environmental characteristics

  • Storage temperature: -45°C - 80°C
  • Operating temperature: -30°C - 65°C
  • Vibration: < 10g (20 - 2000 Hz)
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