Overview
The Belimo 22DT-54R is an active temperature sensor equipped with a 12-inch stainless steel probe and a 4-20 mA output signal. It delivers precise, long-range temperature monitoring in large air ducts and hydronic pipe systems.
Features
- Extended 12-inch stainless steel probe for reaching duct core air flows
- Noise-immune 4…20 mA analog output signal
- 8 onboard jumper-selectable measuring ranges
- NEMA 4X / IP65 rated enclosure built for demanding conditions
- Easy mounting with included hardware and conduit adapter
Specifications
- Probe Length: 12 inches [300 mm]
- Probe Diameter: 0.24 inches [6 mm]
- Output Signal: 4…20 mA
- Supply Voltage: DC 24 V
- Enclosure Rating: NEMA 4X / IP65
- Measured Value: Temperature
Applications
- Temperature monitoring in large supply and return air ductwork
- Hydronic pipe temperature measurement using thermowell pockets
- Process temperature regulation in building automation networks


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