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Advantages

  • Voltage output signal
  • Possibility of embedding a temperature sensor
  • It works together with the H5800 device or alone
  • Small size and ease of use
  • Quick connection with coupling

Description

By means of a thin-film capacitive sensor, the capacity of which changes in proportion to the change in the relative humidity of the environment, RHA measures the relative humidity of air and non-aggressive gases at atmospheric pressure and converts it into a standardized voltage output signal. Based on the RHT transducer, but with the entire electronic unit contained in one cylindrical body, this probe is specially adapted for rapid measurement by portable moisture meters with a programmable or adjustable input. What’s more, a platinum temperature sensor can be embedded in the RHA to measure the temperature of the environment simultaneously with the humidity. Through its flexible cable and miniature coupling, the RHA transducer is easily connected to the H5800 portable unit to form a lightweight, convenient and versatile means of portable relative humidity control with a wide range of applications.

Additional information

Захранване

DC from the handheld meter

Аналогов вход

Capacitive sensor

Вграден температурен сензор/термостат

None, Pt100, Pt1000

Аналогов изход

0…100 mV DC

Измервателен обхват

0…100 %RH

RHA humidity sensor

Humidity

Technical Specifications
Input
Humiditycapacitive sensor, 0…100 %RH
Temperature (option)Pt100 or Pt1000 (w=1.385) (1), -10…50 °C
– accuracyclass ‘B’
Output
Output voltagemin. 0…max. 1000 mV DC
Linearity proportional tomeasured value
Accuracy
Measurement error2.5% from span
Non-linearitywithin measurement error
Temperature drift0.1% from span for 1 °C
Power supply
Supply voltageDC from the handheld meter
Admissible variations20 mVp-p at 50 Hz
Operating conditions
Ambient temperature-10…50 °C
Ambient humidity0…85 %RH, non-condensing

 

Design and materials
Case materialstainless steel
Sintered filter (option)stainless steel, 75 μm
Wiring1…5 m PVC or silicone cable w/ 4-pin M8 connector type ‘C3’
Dimensionsø16x min. 120 mm (w/o cable and filter)
Weight30 g (w/o cable and filter)
Protection classIP54 (except sensor)

(1) H5800 requires Pt1000!