Galltec-Mela logo Humidity measuring technology - high quality

Technical data

Relative Humidity
0...100 % RH
Temperature
-50 ... +150 °C
-80 ... +200 °C
Dew point temperature
Wet bulb temperature
Absolute humidity
Mixing ratio
Enthalpy
-20 ... +70 °C
-10 ... +50 °C
0 ... 20g/m³
0 ... 100g/kg dry air
0 ... 80kJ/kg
Signal output
0...1 V
0...10 V
4...20 mA
RS232, RS485 Modbus
Supply voltage
6 ... 30 V DC / 6...26 VAC
15 ... 30 V DC / 13...26 VAC
10 ... 30 V DC
5 ... 30 V DC

BK - Duct mounted

Heavy-duty transmitters for advanced requirements

Features

  • Operating temp. up to 200 °C
  • Accuracy: ±1,5 % RH
  • Accuracy T.: ± 0.15 K with analogue output
  • Accuracy T.: ± 0.2 K with modbus
  • On-site calibration
  • hx converter
  • Stainless steel sensor tube
  • IP65

Options

  • Modbus
  • Display
  • Pressure-resistant up to 10 bar

Depending on the individual design, these sensors can be used at temperatures between -80 °C and +200 °C and at pressures of up to 10 bar. In the B series, the probe and transmitter are firmly connected to one another.

The integrated hx processor can calculate further humidity values and apply them to the two outputs. With the RS485 standard all of the hx-values can be read simultaneously. Due to the digitisation of signal processing, the measurement accuracy for humidity achieves excellent values of ±1.5 % RH. In temperature measurement, the platinum resistance sensor achieves tolerances of ±0.15 K

Capacitive MELA® sensorchips
Equipped with the highly dynamic capacitive MELA® sensor element, the sensor provides reliable performance across the full humidity range. Using the MELA® sensor element ensures long-term stability, resistance to dew formation, minimal hysteresis, and strong dynamic capabilities.

Often used in

  • Chemical industry
  • Clean rooms
  • Climate chambers
  • Drying of tea, corn, meat
  • Drying plants
  • Paper & print
  • Pharmaceutical industry
  • Process and factory automation
  • Storage
  • Textile processing
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