Overview
The Belimo 22ADP-55Q is a low-range active differential pressure sensor designed for precise air pressure monitoring. With Modbus RTU integration and multi-range selectable settings, it is ideal for low-pressure HVAC and cleanroom applications.
Features
- Sensitive low-pressure measurement down to 0 to 1 inch WC
- Modbus RTU network communication capability
- 8 selectable sub-ranges adjustable via DIP switch
- Robust NEMA 4X / IP65 housing
- Dual active analog outputs for flexible system control
Specifications
- Measuring Range: 0 to 1 inch WC [0 to 250 Pa]
- Nominal Voltage: AC/DC 24 V
- Output Signal: Modbus RTU, 0…5 V, 0…10 V
- Display: None
- Enclosure Rating: NEMA 4X / IP65
Applications
- Low differential pressure measurement in cleanrooms and isolation rooms
- Static duct pressure control in variable air volume (VAV) systems
- Monitoring fine filter resistance in air handlers



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