BERTHOLD TECHNOLOGIES LB 567, User Manual

Page: 33 / 186

Chapter 3. System Description
MicroPolar 2 (++) LB 567 33
3.8
Assembly on a Pipeline
The evaluation unit is installed close to the flow cell to keep the
HF cable between evaluation unit and probe as short as possible.
The shorter the cable connection, the better the stability of the
measurement. The standard length is 2 m and the maximum
length of the HF cable is 10 m.
The flow cell is integrated into the existing pipeline system or in
a bypass. The orientation of the flow cell can either be vertical or
horizontal. To avoid possible sedimentary deposits, vertical in-
stallation in a riser is preferred (see Figure 3-18).
The installation should preferably be close to a sample sampling
point to ensure representative sampling for calibration.
A representative temperature signal (current signal or PT100)
should be connected to the evaluation unit for product tempera-
ture compensation.
Figure 3-18:
Typical measurement
arrangement on
a pipeline
Pipeline inline
or in bypass
Product flow
Sampling
Reference line
with N-connector
HF-cable quad
Evaluation unit
Distance:
typical 2 m
Orientation:
HF-connections
facing down
Micro-Polar