Data Sheet A/RH3-100KS-D - ACI Automation Field Components download pdf

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The ACI Relative Humidity Duct utilizes a thermoset polymer capacitive sensing element with a factory ­fitted hydrophobic fi­lter to improve its moisture resistance. The sensing elements multilayer construction also provides excellent resistance in applications where dust, dirt, oils and common environmental chemicals are found. (For RH/Temp combination units, please see data sheet for temperature output specifications). The RH duct sensors include on board DIP switches which allow the user to select the desired output signal (0-5 VDC, 0-10 VDC, & 4-20 mA) and can be powered by AC or DC power sources. Each unit also contains 0%, 50%, and 100% test options to verify that the transmitter is both working and wired properly. Field calibration can be performed by using the increment and decrement calibration DIP switches without the need to replace the sensing element. These enhancements provide increased flexibility and outstanding long-term reliability without the need to replace the sensors in the ­field. Duct confi­gurations feature a weatherproof Euro style enclosure with a gasketed cover and conformally coated circuit boards for increased moisture resistance in high humidity environments. The sensor is protected by a stainless-steel sintered fi­lter. Three and Five-point NIST Calibration Certifi­cates (for RH) are available and must be ordered separately when placing your order. Applications: Humidi­fication, Dehumidifi­cation, Supply / Discharge / Return Air, Economizers, Clean Rooms, Data Centers, Process Control, Schools, Hospitals, Office Buildings