Outdoor Humidity & Temperature Transmitters HOTT-series

The outdoor humidity and temperature transmitter HOTT measures the relative humidity and temperature of air.

The outdoor humidity and temperature transmitter HOTT converts the measurands into standard signals of
0-10 Vdc or 4-20 mA and is optional available with or without display.

Display-versions show actual humidity and actual temperature.

Terminal box enclosure made of impact-resistant plastic with enclosure cover with quick-locking screws.

The outdoor humidity and temperature transmitter HOTT has four switchable temperature ranges and is applied in non-aggressive dust-free ambiences in refrigeration, air conditioning, ventilation and clean room technology.

Relative humidity (in % r. H.) is the quotient of water vapour partial pressure divided by the saturation vapour pressure at the respective gas temperature.

These measuring transducers are designed for exact detection of humidity.

A digital long-term stable sensor is used as measuring element for humidity measurement.

Fine adjustment by the user is possible.

  • Outputs
  • Humidity and temperature
    HOTT 010 with 2 x 0-10 Vdc outputs
    HDTT 420 with 2 x 4-20 mA outputs

    As option passive (direct) temperature output such PT100, PT1000, Nickel, NTC 10K, NTC 1.8K,NTC 20K and PTC etc.

  • Humidity measuring range range
  • 0 to 100% r.H. (output corresponding to 0-10 Vdc or 4-20 mA)

  • Temperature measuring ranges
  • 4 different measuring temperature ranges selectable by jumpers on pcb -35°C to +35°C, -35°C to +75°C, 0 to 50°C or 0 to +80°C.

  • Accuracy
  • - Humidity +/- 3% (20 to 80% r.H.), at +20°C, otherwise+/- 5%
    - Temperature +/- 0.8 Kelvin at +20°C.

  • Long-term stability
  • Small hysteresis
  • With or without LCD display

Download datasheet

Outdoor Humidity & Temperature Transmitters HOTT-series.pdf

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