Data Sheet | Teknik Doküman A/RH3-TT1K-O-3.25'-4X-4 - ACI Otomasyon Saha Ekipmanları pdf indir

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The ACI Relative Humidity with Temperature Transmitter Outside Air Series utilizes a thermoset polymer capacitive sensing element with a factory applied hygroscopic fi­lter to deliver a proportional analog current or voltage output signal. The hygroscopic ­filter provides added resistance to moisture, dust, and other chemicals for greater long-term reliability. The RH Outside Air transmitter features integral DIP switches for fi­eld selection of the proper output signal and supply voltage to meet your applications requirements. 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. The temperature transmitter can be used as either a two-wire 4 to 20 mA proportional output or as a 3-Wire voltage output transmitter that includes a 100 Ohm or 1K Ohm Class A, Platinum RTD. All RH-TT Series Outside Air transmitters are mounted in a IP66/NEMA 4X enclosure with a 4.5” polycarbonate tube to protect the sensing elements from dust, rain, and snow. These units should be installed under an eave or protective shield on the north side of the building out of direct sunlight. The RH transmitter is conformally coated for added protection from moisture and other contaminants. NIST Calibration Certifi­cates are available for all RH TTM part series.