Climate transducer PFT28R (room sensor)Measuring range temperature -30...+50 °C, 0...50 °C, 0...100 °C Measuring range relative humidity 0...100 % (short-term condensation possible)
The devices in the PFT28 series of transmitters convert the measured values of temperature and relative humidity into the following values: Dew point temperature, absolute humidity, wet bulb temperature and enthalpy.
Climate transducer PFT28 series
Measurement of temperature and relative humidity
Digital signal transmission from sensor to evaluation electronics
Response time of a few seconds
Easy exchange of the sensor
Alphanumeric LCD display
Analog outputs 0/2...10 V or 0/4...20 mA
Supply voltage 15...30 Vdc or 24 Vac (±15%)
Compact plastic housing protection class IP54; UL 94 HB
Measuring range relative humidity 0...100 % (short-term condensation possible)
Measuring range temperature -30...+50 °C, 0...50 °C, 0...100 °C
Calculation and display of dew point temperature, enthalpy wet bulb temperature and absolute humidity
The devices in the PFT28 series transmitters convert the measured variables temperature and relative humidity into the following variables: Dew point temperature, absolute humidity, wet bulb temperature and enthalpy.
The device has two analog outputs: output 1 supplies the temperature signal and one of four other measured variables can be assigned to output 2 via a two-pole DIP switch. The device has a two-line alphanumeric display for the direct display of measured variable, measured value and unit.
Various device versions are available:
A room sensor for wall mounting, a duct sensor for installation in a ventilation duct and a cable guide version with 2 m cable. In both versions, the sensor tube is attached directly to the housing. The output signals can be switched from 0/2...10 V to 0/4...20 mA using a jumper. The device is supplied with 15...30 Vdc or 24 Vac.
Operating mode:
| Measuring mode |
| Measuring material: |
| Temperature and humidity |
| Sensor: |
| Single-chip sensor for humidity and temperature with digital signal transmission and calibration memory on the chip |
| Measuring unit: |
| Temperature in °C; relative humidity in % |
| Output signal 1: |
| Temperature |
| Output signal 2: |
| Relative humidity, dew point, wet bulb temperature, enthalpy; (especially - absolute humidity) |
Technical data
- Measurement of temperature and relative humidity
- Digital signal transmission from the sensor to the evaluation electronics
- Response time of a few seconds
- Easy exchangeability of the sensor
- Alphanumeric LCD display
- Analog outputs 0/2...10 V or 0/4...20 mA
- Supply voltage 15...30 Vdc or 24 Vac (±15%)
- Compact plastic housing Protection class IP54; UL 94 HB
- Measuring range relative humidity 0...100 % (short-term condensation possible)
- Measuring range temperature -30...+50 °C, 0...50 °C, 0...100 °C
- Calculation and display of dew point temperature, enthalpy wet bulb temperature and absolute humidity
