Overview
The Belimo 22ADP-556L is a differential pressure sensor for air and non-aggressive gases featuring an integrated LCD display and Modbus RTU communication. It offers a broad 0 to 28 inch WC measuring range suited for high-pressure HVAC differential monitoring.
Features
- Integrated LCD screen for clear on-site measurements
- Native Modbus RTU communication over RS-485
- 8 DIP-switch selectable measuring sub-ranges
- Rugged NEMA 4X / IP65 rated protective enclosure
- Switchable analog output signals (0…5 V or 0…10 V)
Specifications
- Measuring Range: 0 to 28 inch WC [0 to 7000 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
- Differential pressure monitoring in high-static air systems
- Filter status and fan performance monitoring in ventilation plant
- Building automation integration for airflow and pressure regulation


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