Belimo 22MT-125 - duct average temperature sensor

Belimo 22MT-125 – average temperature sensor

Active sensor for measuring average air temperature in duct applications. It is equipped with a continuous sensing element along the entire length of the 6 m probe.

Key features and specifications

• Measured value: temperature; sensing element technology: Pt1000 class AA.
• Nominal voltage: AC/DC 24 V; voltage range: AC 19...29 V / DC 15...35 V.
• Voltage output: 1 x 0...5 V, 0...10 V; minimum resistance 5 kΩ. 0...5/10 V signal adjustable by jumper.
• 8 selectable measuring ranges: S0 -50...50°C, S1 -10...120°C, S2 0...50°C, S3 0...250°C, S4 -15...35°C, S5 0...100°C, S6 -20...80°C, S7 0...160°C.
• Temperature accuracy: ±0.5°C @ 21°C when range S2 and S4 are selected.
• Time constant τ (63%) in air duct: typically 100 s @ 0 m/s.
• Electrical connection: pluggable spring-clamp terminal block, max. 2.5 mm².
• Enclosure protection rating: IP65 / NEMA 4X.
• Ambient temperature: -35...50°C; medium temperature: -35...70°C.

Note: the largest available measuring range does not indicate the permissible medium temperature for the sensor.