Moisture measurement

  • state of the art microwave technology
  • compact design with evaluation unit and sensors in one housing
  • no moving parts
  • no wear
  • maintenance-free
  • optional remote control from a PC or separate operating device
  • any size flange on request



The microwave measuring instrument HK1-C-3A is a compact version of our HK 1-M. The instrument is direct installed to a flange (DN80) with build in sensors. It is applicable for measurement of concentration, moisture and consistency in the construction-, chemical- and paper industry. 

Technical data:

Measuring procedure Microwave engineering ISM-Band
   Size LxWxH
pressure cast aluminium housing
230 x 200 x 100mm
IP65 / NEMA 4
RAL 5024
   Power supply
   2 Analog outputs
   1 Analog input
   Temperature sensor
    PC interfaces
   1 Relays contact
   Digital inputs

100-240V AC, optional 24V DC
0/4 - 20 mA
0/4 - 20 mA
PT 100 
RS 232 or RS 485
max. 5A/250V
ext. select of 16 products / start / stop
User interface

6 integrated soft keys in keypad
2 x 24 characters illuminated
Antennas integrated pin antennas 195mm / DN80
Ambient conditions
   Environment temperature
   Product temperature

-20°C to +85°C
 >0°C to +130°C (on request +140°C)
Flyer HK1

Harrer & Kassen GmbH
Am Heschen 4-6
D-75328 Langenbrand
Tel:     +49 (0)7084/9248-0
Fax:   +49 (0)7084/9248-29
eMail: info(at)

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