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.
- Humidity measuring range range
- Temperature measuring ranges
- Long-term stability
- Small hysteresis
- With or without LCD display
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.
0 to 100% r.H. (output corresponding to 0-10 Vdc or 4-20 mA)
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.
- Humidity +/- 3% (20 to 80% r.H.), at +20°C, otherwise+/- 5%
- Temperature +/- 0.8 Kelvin at +20°C.
Outdoor Humidity & Temperature Transmitters HOTT-series.pdf
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