Overview
The Belimo 22ADP-55QL is a low-range air differential pressure sensor featuring an integrated LCD screen and Modbus RTU communication. It is engineered for precision measurement in low-pressure HVAC ducts and controlled spaces.
Features
- Digital LCD display for convenient local pressure monitoring
- Modbus RTU RS-485 communication interface
- 8 DIP-switch selectable measuring sub-ranges
- Active analog output signals switchable between 0…5 V and 0…10 V
- NEMA 4X / IP65 environmental protection rating
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: LCD display
- Enclosure Rating: NEMA 4X / IP65
Applications
- Low-pressure duct airflow and static pressure control
- Cleanroom and controlled environment pressure monitoring
- Visual and networked air filter status tracking



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