HK1 - M

Concentration- and moisture measurement

sate of the art microwave engineering
modular setup of evaluation unit and sensors
no moving parts
no wear
vibrations do not have an influence on the result of measurement
maintenance-free
optional remote control from a PC or separate operating device
up to 16 different calibrations
temperature sensor PT100 is standard, optional NTC possible

Due to the robust and modular design the microwave measuring instrument HK 1-M is particularly suitable for the measurements of concentration and water content in the food- and chemical industry.

Description:
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

Depending on the operational area following antennas are available:

Pin antennas for the inline measurement in pipes or a tank
Horn antennas for measurement on a conveyor belt
Spiral antennas for measurement on a conveyer belt
3A-spiral antennas (with 3A-flow cell) for the measurement in pipes (food industry)
Short 3A pin antennas (with flow cell) for the measurement in pipes
Mini-spiral antennas (with flow cell) for the measurement in pipes

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

Technical data:

Measuring procedure

Microwave engineering ISM-Band

Housing:
   Size LxWxH
   Enclosure
   Color

pressure cast aluminium housing
230 x 200 x 110mm
IP65 / NEMA 4
RAL 5024

Connections
   Power supply
   2 Analog outputs
   1 Analog input
   Temperature sensor
   PC interfaces
   1 Relays contact
   4 Digital inputs

   PROFI-BUS-DP

100-240V AC, optional 24V DC
0/4 - 20 mA
0/4 - 20 mA
PT 100, optional NTC possible
RS 232 or optional RS 485
max. 5A/250V
ext. select of 16 products / start / stop
such as for pressure compensation
optional

User interface
Operating
Display

6 integrated soft keys in keypad
2 x 24 characters illuminated

Sonsors / Antennas

Pin antennas
Horn antennas
Spiral antennas
3A-spiral antennas
Short 3A pin antennas
Mini-spiral antennas

Ambient conditions
Environment temperature
Product temperature

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

Flyer HK1