VEGA VEGAPULS 66 Antenna extension - Manual (Page 9)

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Fig. 6: Connection after tightening the screws
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Correct, gap-free mounting
Mounting is finished.
3.5 I nstallation control
Particularly angled, multi-sectional or incorrectly mounted antenna
extensions can cause false echoes at close range. These false echoes
can influence the function of the measurement. When retrofitting an
antenna extension, we recommend making sure all components are
correctly mounted before setting up the measurement. The first step is
a visual check for gaps and non-aligned polarisation markings.
Supplied antenna extension
When the antenna extension is delivered with the radar sensor, a false
echo fade-out has already been carried out at the factory. False
echoes caused by the antenna extension are thus eliminated for the
signal processing.
Retrofitted antenna extension
After the visual check, the false echo curve is opened and checked via
a PC with PACTware. If everything is mounted correctly, the red echo
curve will be above the blue false echo curve. It is generally
recommended that the user carry out a false echo fade-out on site.
False echoes caused by
antenna extensions
Antenna extension • for VEGAPULS 66 9
3 Mounting
34195
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EN
-090130