Relative humidity and temperature sensor PFT30

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• Transmitter with PID control function • Measurement of temperature and relative humidity • Digital signal transmission from the sensor to the evaluation electronics • Response time of few seconds • Easy interchangeability of the sensor • Alphanumeric LCD display • Two freely configurable measuring control channels with 0 … 10 V output • Measuring range rel. Humidity 0 … 100% (short-term condensation possible) • Calculation of the climatic parameters dew point, absolute humidity, entalpha, wet bulb temperature The climate converter PFT30 is a versatile sensor controller. The sensor controller calculates, from the directly measured values ​​of temperature and relative humidity, the measured values ​​of dew point temperature, wet bulb temperature, absolute humidity and enthalpy, which are frequently used in climatic engineering. The device has two independent channels each with analog output 0 … 10 V and a display line. The measured values ​​can be freely assigned to a channel and scaled. Each channel can be used with measurement or control functions. For the PID control the setpoints and parameters can be set in the device, as is the possibility to use the PFT30 as a binary controller. An exchangeable sensor chip is used for measuring the relative humidity and temperature. Two sensors (capacitive measuring principle for relative humidity and semiconductor principle for temperature), a signal amplification, a 14-bit A / D converter and a digital two-wire interface are located on the sensor chip.