Berthold MicroPolar LB 566, Руководство пользователя

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Chapter 2. General Information
14 MicroPolar (++) LB 566
2.3
Intended Use
The LB 566 can be used to determine the water or moisture
content and the concentration of virtually any material. The fol-
lowing sensors and evaluation versions are available:
1. The container probes have been designed for installation in-
to containers and pipelines with a nominal width of  200
mm. The probe is mounted so that both measuring rods
(transmitter and receiver) are immersed into the product
being measured.
2. The FlowCell is a tubular probe, with the microwave trans-
mitter and receiver being firmly welded onto the outside of
the tube. The tube is lined with Teflon to ensure smooth
walls. The FlowCell is either installed directly into the exist-
ing pipeline system or into a bypass.
The evaluation unit is available in two versions: The standard
model MicroPolar and the high dynamic version Micr+.
The Micro Polar ++ requires a microwave signal attenuation of
at least 40 dB. The MicroPolar must be used for lower micro-
wave attenuation.
During operation, the concentration meters MicroPolar and Mi-
cr+ emit electromagnetic radiation in the frequency
range between 2.4 GHz and 2.5 GHz (range limitations depend-
ing on local regulations in your country). Microwaves are not
dangerous to human beings and the environment (power radia-
tion < 10 mW). The microwaves are emitted directed from the
microwave window; the product is not altered by the micro-
waves.
To ensure proper function of the measuring system, please pay
attention to the following:
TIP

The material to be measured may be electrically conduc-
tive only to a limited degree.

The product must not contain any gas bubbles or gas
bubbles have to be compressed with adequate pressure
when carrying out measurements in pipelines.

The ion concentration, for example, salt content must be
nearly constant.