The maintenance-free microprocessor-controlled PREMASGARD® 814x - Modbus (series) with Modbus connection, enclosure made of impact-resistant plastic, enclosure cover with quick-locking screws, with plastic sinter filter (optional metal sinter filter), with ⁄ without optional display, is used for precise detection of relative air humidity and temperature in ducts as well as for measuring differential pressure of air. Relative humidity (% r.H.) is the quotient of water vapour partial pressure divided by the saturation vapour pressure at the respective gas temperature. A digital, long-term stable sensor as a measuring element for relative humidity and temperature guarantees exact measurement results.
The pressure sensor is used for above-atmospheric, below-atmospheric, or differential pressure measurement in clean air. The piezo-resistive measuring element guarantees a high degree of reliability and accuracy. Applications of these pressure sensors are in clean room, medical and filter technology, in ventilation and air conditioning ducts, in spray booths, in large-scale catering facilities, for monitoring filters, for level measurement or for triggering frequency converters. Media measured with these pressure transducers are air (non-precipitating), or other gaseous non-aggressive, non-combustible media. The pressure sensor has a manual zero point pushbutton (optional automatic zero point calibration) and an offset potentiometer for final value correction. Fine adjustment by the user is possible at any time. The delivery includes the connection set ASD-06 (2 m connection hose, two pressure connection nipples, screws).