Overview
The Belimo 22HT-52 is an active surface contact temperature sensor designed for precise temperature measurement on pipes. Equipped with selectable 0-5 V or 0-10 V outputs and a spring-loaded brass contact, it provides rapid thermal response.
Features
- Spring-loaded brass contact pin ensuring fast response and accurate readings
- Field-selectable 0…5 V or 0…10 V analog voltage outputs
- Included fixing strap for secure mounting on pipe diameters up to 4.3″ [110 mm]
- Weatherproof NEMA 4X / IP65 rated housing
- Multiple selectable temperature measuring ranges
Specifications
- Output Signal: 0…5 V, 0…10 V (selectable)
- Measuring Element: Active contact transducer
- Mounting: Pipe clamp / fixing strap (up to 4.3″ / 110 mm)
- Supply Voltage: 24 V AC/DC
- Enclosure Rating: NEMA 4X / IP65
Applications
- Surface contact temperature sensing on hydronic heating and cooling pipes
- Temperature monitoring in boiler and chiller loop systems
- Non-intrusive pipe fluid temperature measurement in commercial HVAC



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