On-wall humidity and temperature sensors (± 1.8 % ⁄ ± 2.0 %),
calibratable, with multi-range switching and active ⁄ passive output
Calibratable outdoor humidity ⁄ temperature sensor HYGRASGARD® AFF ⁄ AFTF (± 2,0 %) and AFF - 20 ⁄ AFTF - 20 (± 1,8 %) with plastic sinter filter (optional metal sinter filter) or AFF - 25 ⁄ AFTF - 25 (± 1,8 %) with pluggable measuring head with metal sinter filter; housing made of impact- resistant plastic with quick-locking screws, optionally with ⁄ without display, with cable gland ( optional M12 connector according to DIN EN 61076-2-101).
It measures the relative humidity and ⁄ or temperature of the air and converts the measurand into a standard signal of 0 - 10 V or 4...20 mA. They have four switchable temperature ranges and are applied in non-aggressive, dust-free atmospheres in refrigeration, air conditioning, ventilation and clean room technology. Relative humidity (in % RH) is the quotient of water vapour partial pressure divided by the saturation vapour pressure at the respective gas temperature. These measuring transducers are
designed for exact detection of humidity. A digital long-term stable sensor is used as measuring element for humidity measurement.
The sensor is factory-calibrated; an environmental precision adjustment by an expert is possible.
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