QBM3120-5D Siemens Air differential pressure sensor. 0-500pa range. Linear or square root characteristic. 4-20mA with display

• 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 nonaggressive gases.
Fields of application
• Measuring the slightest differential pressures in ventilation and air conditioning
ducts
• Check air flows
• Monitor filters and control fans