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Rotronic BF220 Process Pressure Transmitter


Reliable measurement of process pressure.

Pressure transmitters measure the pressure of neutral gases and nitrogen in piping and closed containers. The pressure of the medium being measured acts on a pressure cell, which converts the pressure into an electronic signal.

Field of Application

The process pressure transmitters are ideal for measurement of absolute pressure in applications with fast temperature changes and in compressed air, HVAC and pneumatic systems.


  • Compact and robust construction
  • Piezo-resistive steel sensor
  • Zero and range adjustable with internal potentiometer
  • IP protection IP65



Device type Process pressure transmitter
Parameters Absolute pressure
Dimensions 137 x 41 x 27 mm
Weight ~220g
Range of application -30…80 °C
Measuring range 0…10 bar
Measurement principle Piezo-resistive steel sensor
Pressure resistance 15 bar
Medium Air and non-aggressive gases
Accuracy at 20 °C ±2 K (linearity, hysteresis, repeatability, deviation of start and end value of the measurement range) ±0.25 % FS max.
TK zero ±0.03 %FS/K
TK range ±0.03 %FS/K
Power supply / Power consumption 15…30 VDC
Long-term stability ±0.2 % full scale / year
Connection G ½” male thread
Seal ring Viton
Electrical connections Hirschmann (DIN 43650)
Analog output signal (standard) 4…20 mA, two-wire
Permissible load <750 Ω
Housing Stainless steel 1.4301
Diaphragm Stainless steel (1.4404)
IP protection rating IP65
Mounting position 90 ° to pressure pipe (max. 30 ° inclination)
CE / EMC conform EMC Directive 2004/108/EC, EN 61326
Storage and transport conditions -30…80 °C











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