Description

Duct sensors QFM2160 for relative humidity and temperature • Operating voltage AC 24 V / DC 13.5…35 V • Signal output DC 0…10 V / 4…20 mA for relative humidity • Signal output DC 0…10 V / 4…20 mA / LG-Ni 1000 for temperature • Measuring accuracy –3 % r. h. within the comfort range • Range of use -15…+60 °C / 0…95 % r. h. (non-condensing) Description: The QFM21.. duct sensors are for use in air ducts of ventilation and air conditioning plant for acquiring: • The relative humidity and • The temperature. The sensors are used as: • Control sensors in the supply or extract air • Reference sensors, e.g. for shifting the dew point • Limit sensors, e.g. in connection with steam humidifiers • Limit sensors, e.g. for measured value indication or for connection to a building automation and control system • Sensors for enthalpy and absolute humidity, together with SEZ220 (see Data Sheet N5146)