The Siemens QBM 2030 differential pressure sensor (QBM2030-1U) is designed for measuring differential pressure, positive pressure and negative pressure of air and non-aggressive gases in standard ventilation and HVAC applications. It uses a linear pressure characteristic and provides an analogue 0...10 V DC output. The device is particularly suitable for measuring very small pressure differences in ventilation ducts, monitoring air flow, checking filter status and controlling fans. Key benefits include a selectable measuring range, push-button zeroing, and a supplied connection kit including tubing and air probes.

Main features

• Measurement of differential pressure, positive pressure and negative pressure
• For air and non-aggressive gases
• Analogue 0...10 V DC output
• Selectable measuring ranges via DIP switch
• Zero point adjustment by push button
• Maintenance-free design
• Connection kit included in the delivery