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Siemens QBM2030 30 Differential Pressure Sensor

KSh 19127

Siemens QBM2030 30 Differential Pressure Sensor is used to measure the slightest differential pressures variation in ventilation and air conditioning ducts, also Monitoring filters and control fans with output available in the device. The siemens pressure sensor acquires differential, over and under the pressure of air and nonaggressive gases.
Applications: This pressure sensor is widely used in HVAC applications for measuring the difference between positive and negative pressure. Measuring the smallest differential weights in ventilation and cooling channels, Pharmaceutical Clean Rooms, and AHU applications Check wind streams, Monitor channels, and control fans


Siemens QBM2030 30 Differential Pressure Sensor acquires the differential pressure using a silicon rubber membrane and ceramic lever. The Differential Pressure Sensor generates a linear and temperature-compensated output signal DC 0 to 10 V, as per the deflection.
Features of Siemens QBM2030 30 Differential Pressure Sensor:

  • Pressure-linear characteristic with selectable pressure measuring range
  • Operating voltage AC 24 V or DC 13.5…33 V
  • Output signal DC 0…10 V
  • Zero-point adjustment
  • Simple and fast mounting thanks to integrated mounting brackets in the housing
  • Maintenance-free
  • Calibrated and temperature-compensated measuring signal
  • Supplied with tubing connection set

Additional information



Model No


Measuring Parameters



AC 24 V, DC 13.5…33 V

Power Consumption

0.5 VA

Analog Output

DC 0…10 V

Sensing Elements

Pressure diaphragm

Response Time

1 sec

Connection Type

Screw terminals

Protection Class



92 x 94 x 49 mm


190 Grams

Weight 1 kg
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Siemens QBM2030 30 Differential Pressure Sensor

Siemens QBM2030 30 Differential Pressure Sensor

KSh 19127

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