HK2- M


concentration- and moisture measurement

  • state of the art microwave engineering
  • optional guard for rough conditions
  • wear-free
  • maintenance-free
  • vibrations do not have an influence on the result of measurement
  • optional remote control from a PC or separate operating device
  • optional automated sensor cleaning
The microwave measuring instrument HK2-M is particularly designed for the sugar,- sewage plant- and building material industry.

The microwave measurement devices generate an electromagnetic wave of low energy. This signal is coupled via an antenna into the product.

Depending on the dielectric properties of the product the signal propagates in the product. After the signal has passed the product a second antenna receives the signal (Transmission).

Amplitude and phase shift of the received signal are an expression for the water content or dry matter of the product.

The microwave measurement is very stable and it has a quick response to product changes.
Transmissions signal passes through
an in-homogenous product


Conditions for a successful measurement:
The product contains NO SALT and there is NO METAL between the antennas!

The HK2-M is using our Spiral antennas or Pin antennas, where an optional cleaning could be included.

We advise you gladly which antennas for which application or measuring kind the best results supply.

Technical data:
Measuring procedure Microwave engineering ISM-Band
   Size LxWxH
pressure cast aluminium housing
180 x 180 x 100mm
IP65 / NEMA 4
RAL 5024
   Power supply
   1 Analog output
   Temperature sensor
   PC interface
   1 Relays contact

100-240V AC, optional 24V DC
0/4 - 20 mA / optional 2nd output
NTC / optional PT 100
RS 232 or RS 485
max. 5A/250V
User interface

6 integrated soft keys inkeypad
2 x 24 characters illuminated
Antennas Pin antennas 195 mm / DN65
Option: Sensor cleaning
Ambient conditions
   Environment temperature
   Product temperature

-20°C to +85°C
 >0°C to +130°C (on request +140°C)
Flyer HK2

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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