Sensor combination air temperature, relative humidity, pyranometer CMP3 with standard output 4..20mA

  • registration of the air temperature
  • laser-trimmed measuring sensor
  • registration of the relative humidity
  • laser-trimmed humidity sensor
  • hardware-based compensation of the temperature course
  • registration of the global radiation of the sun
  • continuous spectral sensitivity - wide spectral range
  • thermo element
  • temperature compensation
  • in compliance with ISO 9060
  • durable casing
  • 3x two wire cables
     Order number
  • sensor combination with 4..20mA: 20501

This sensor combination is used for the measurement of the air temperature, the relative humidity and the global radiation of the sun.

The air temperature sensor consists of a temperature-dependent silicon regulated current source, whereby there is no influence on the measuring signal / accuracy by the sensor line resistance / conduit length. Of course, on customer's request, we also supply the conventional PT100 .

The humidity sensor is structured as a planar multi-layer sensor and is equipped with a complex software temperature compensation.

The primary pressure absorber of the air pressure sensor is based on a silicon absolute pressure sensor item, whose function is based on the piezo-resistive effect. It is measured against a vacuum as the reference. It has an internal active temperature compensation for a wide temperature range. This is achieved by an integrated signal processor that realizes an extensive correction of the course of temperature.

The sensor is supplied in a sturdy and impact-resistant plastic casing.

Fields of application
climatic data registration, storehouse and room air-conditioning, laboratory and environmental technology, general automatic control engineering, building automation


     Technical data
Air temperature

Measuring range: -40... +60C
Resolution: 0.1 K
Absolute measuring error: 0.2 K (-20... +50C) or 0.3 K (-40... +60C)

Relative humidity

Measuring range: 0... 100 %
Resolution: 0.1 %
Measuring error : 3 % (0... 100%)
Linearity: 0.5 % typically
Response time: 30 s (in slowly moved air with 25C)
Application temperature: -40... +60C

Electric output 2x: 4... 20mA
Operating voltage: +15...+30V DC
Dimensions: diameter 20x1300 - diameter 10mm
shielded two-wires cables: 2m

Pyranometer CMP3

Spectral range: 310 - 2800 nm
Sensitivity: 5-15 V/Wm2
Response time (95%): < 18s
Non-linearity (0-1000 W/m2): < 2.5%
Non-stability (change/year): < 1%
Field of view (degrees): 180

Electric output: 4... 20mA
Operating voltage: +15 ... +30V DC
shielded two-wires cable: 2m

     Measuring, controlling, adjusting with this sensor...   =>    UNIKLIMA vario

Please also check to what extent our automatic, network-able, measured value registration and control device UNIKLIMA vario fully meets your requirements already.

  • registration of climatic data
  • process controlling and monitoring, generating and switching of alarm notifications

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Last update: 18.07.2024