CLIMATE TRANSMITTER PFT30
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CLIMATE TRANSMITTER PFT30 - 1

CLIMATE TRANSMITTER PFT30 Measurement - Display - Transmission - Controlling of: Temperature - Relative Humidity - Dew Point - Wet Ball Temperature - Enthalpy - Absolute Moisture 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 Temperature measuring range -40 ... +120 °C, span freely selectable Measuring range rel. Humidity 0 ... 100% (short-term condensation possible) Calculation of the climatic parameters dew point, absolute humidity, ental-pha, wet bulb temperature Supply voltage 18 ... 30 Vdc or 24 Vac (± 15%) Compact plastic housing Protection class IP54; UL 94 HB 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. Furthermore, the calibration data of the two knife holders are stored in an OTP memory, which is also located on the sensor chip. The signal transmission from the sensor to the evaluation electronics in the housing takes place digitally. The sensor itself can be exchanged without any problems, since readjustment of the electronics is not necessary after the replacement. Connection diagram Dimensions PFT30

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CLIMATE TRANSMITTER PFT30 - 2

CLIMATE TRANSMITTER PFT30 Measurement - Display - Transmission - Controlling of: Temperature - Relative Humidity - Dew Point - Wet Ball Temperature - Enthalpy - Absolute Moisture PERFORMANCE/ACCURACY/ERROR LIMIT: Relative Humidity: Resolution: Characteristic: Response time: Long term stability: Reproducibility: Tolerance: Temperature: Resolution: Characteristic: Response time: Reproducibility: Tolerance: Operating Mode: Measured material: Measuring transducer: Measuring ranges: Measuring span: Operation: Application: Sensor: Application Electronics: Storage temperature: 12 Bit linear...

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