BERTHOLD TECHNOLOGIES LB 567, User Manual

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Chapter 3. System Description
24 MicroPolar 2 (++) LB 567
Figure 3-6:
From left:
Horn and
spiral antenna
3.7.1 Evaluation Units
The evaluation units comprise the evaluation computer and the
microwave unit. The microwaves are generated, received and an-
alyzed in the microwave unit. Signal processing and communica-
tion take place in the evaluation computer. For simple operation,
the measuring system includes a display, 4 softkeys and an al-
phanumeric keypad. Different functions are assigned to the soft-
keys on the display.
Differences between MicroPolar 2 ++ und MicroPolar 2
The MicroPolar 2 ++ evaluation unit has an additional HF ampli-
fier module in comparison to the standard model. Otherwise, the
evaluation units differ only in their application.
MicroPolar 2 ++ The high dynamics version MicroPolar 2 ++ permits higher prod-
uct attenuations. Larger measuring paths can be irradiated, i.e.
flow cells with larger nominal diameters can be used. Which type
of evaluation unit is used depends on the product attenuation.
MicroPolar 2 is used up to an attenuation of 70 dB;
MicroPolar 2 ++ is used for higher attenuations. The MicroPolar
2 ++ generally requires an attenuation of 50 dB. If this attenua-
tion is not reached, the software displays an error message.