CRP1 - Clean Room Panel

The CRP1 Clean-room Panel is characterized by its compact construction and simple handling. Its HygroClip2-compatibility allows humidity to be registered to the highest degree of accuracy. The data can be transferred via analog outputs or MODBUS. Measured values, alarms and measurement curves are shown on the display.

The Clean Room Panel CRP1 is the obvious choice wherever precise measurement of humidity and temperature is of vital importance, and a high degree of cleanliness must be maintained. Clean rooms in hospitals, in the pharmaceutical, electronics or foodstuffs industries, and in applications in which humidity and temperature are monitored. The very comprehensive functional capabilities of the CRP1 can be used for many measurement and control tasks. 


  • Measures humidity and temperature
  • Designed specifically for clean rooms
  • Works in combination with the HygroClip2 series
  • FDA- and GAMP-compatible
  • Digital communication via MODBUS RTU / HW4
  • Analog output signals freely configurable
  • Stainless steel front panel highly resistant to chemicals
  • Alarm output acoustic, or via relay or LCD display
Parameters Relative humidity and temperature
Dimensions 182 x 136 x 40 mm
Weight 750 g (without humidity probe)
Operating range -10…60 °C / 0…100 %rh
Measurement ranges -100...200 °C (probe-dependent) / 0...100 %RH
Accuracy analog output ±5 mV (voltage output)
±20 μA (current output)
Switch output 2 Relays
Switching capacity < 30 VDC at 2 A
< 50 VAC at 0.5 A
Power supply / Power consumption 10...36 VDC
<1 A
Electrical connections Screw terminals on back
Display type Illuminated graphic LCD
Menu Navigation 6 buttons
Analog outputs 2, freely configurable
Analog output signal (standard) 4…20 mA or 0…10 V
Permissible load >10 kΩ (voltage output)
<500 Ω (current output)
Communication interfaces RS-485 (Modbus RTU, HW4)
Service Interface UART
Housing Stainless steel 1.4401, plastic (cleaning resistant)
IP protection rating IP65 (built in)
Fire protection class Complies UL94-HB
Mounting position Wall Mounting
FDA / GAMP FDA 21 CFR part 11 / GAMP5
CE / EMC conform 2004/108/EC

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