Relative humidity transmitter HYGRASGARD® AFF series

duct-mountdigitalair

Quality product for HVAC sector, accuracy ± 2 % or ± 3 %Calibratable outdoor humidity ⁄ temperature sensor HYGRASGARD® AFF ⁄ AFTF (± 3 %) and AFF - 20 ⁄ AFTF - 20 (± 2 %) with plastic sinter filter (optional metal sinter filter) or AFF - 25 ⁄ AFTF - 25 (± 2 %) with pluggable metal sinter filter; terminal box enclosure made of impact-resistant plastic, with ⁄ without optional display.It measures the relative humidity and ⁄ or the temperature of the air and converts the measurand into a standard signal of 0 - 10 V or 4...20 mA um. It has four switchable temperature ranges and is applied in non-aggressive dust-free atmospheres in refrigeration, air conditioning, ventilation and clean room technology. Relative humidity (in % r. H.) 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. Fine adjustment by the user is possible.