Siemens Differential pressure sensor – QBM2030


Siemens Differential pressure sensor : QBM2030-1U, QBM2030-5, QBM2030-30.

• 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


The differential pressure sensor acquires differential, over and under pressure of air and non aggressive gases.
Fields of application
• Measuring the slightest differential pressures in ventilation and air conditioning ducts
• Check air flows
• Monitor filters and control fans

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Operating Voltage

AC 24 V, DC 13.5….33V

Pressure range

QBM2030-1U:+/-50Pa, +/-100Pa & 0…100Pa
QBM2030-5: 0…200Pa, 0…250Pa, & 0…500Pa
QBM2030-30: 0…1000Pa, 0…1500Pa, 0…3000Pa

Permitted Media

Air, non-aggressive gases

Protection Degree of Housing

IP42 according to EN 60529

Protection Class

III according to EN 60730-1


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