The Telaire RH / RHT Series Humidity Transmitters are designed for continuous monitoring of relative humidity (RH) or relative humidity and temperature (RHT). They provide accurate and reliable measurement for building automation and environmental control systems. The units feature very low profile sensor enclosures that are virtually unnoticeable in most installations.
The RH and RHT transmitters are available with ±2%, ±3%, and ±5% RH accuracy (20% to 95% RH). For monitoring and controlling in critical environments, the units can be precision calibrated to 1% accuracy within a specified RH range.
The Telaire RH and RHT transmitters provide a linear output of 4-20 mA corresponding to 0 to 100%RH. The RHT transmitter also provides a 4-20 mA signal corresponding to any of the selected standard temperature ranges specified.
The RH sensor incorporates a bulk polymer resistive element. The polymer is impervious to most contaminants and, since it is a bulk resistance device, surface contamination such as dust will not alter the accuracy of the readings. Imbedded in the polymer is an interlocked grid which senses resistance change as the polymer absorbs or emits molecules of water.
The electronics are contained in a rugged pressure-cast aluminum weatherproof housing designed for maximum protection. Continuous temperature compensation adjusts for temperature-induced change in the RH sensor output. The compensation provides high measurement accuracy over the entire operating range of the instrument.
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