Overview
The Belimo 22DTC-53 is an active duct sensor designed to measure carbon dioxide and temperature with dual voltage and current output capabilities. It ensures precise demand-controlled ventilation and air quality optimization in commercial facilities.
Features
- Active dual-channel CO₂ and temperature measurement
- Dual analog outputs supporting 4…20 mA current and voltage signals
- NDIR infrared CO₂ sensor technology with dual-channel calibration
- NEMA 4X / IP65 rated enclosure with conduit adapter
- NFC support for field configuration via Belimo app
Specifications
- Measured Values: CO₂, Temperature
- Output Signal: 4…20 mA AND 0…5 V / 0…10 V
- CO₂ Range: 0…2000 ppm
- Probe Length: 7 inches [180 mm]
- Probe Diameter: 0.77 inches [19.5 mm]
- Supply Voltage: AC/DC 24 V
Applications
- Demand-controlled ventilation in commercial duct systems
- Air quality and temperature monitoring in return air ducts
- Integrated HVAC control in modern energy-efficient buildings



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