Mounting Restrictions; General Notes - KROHNE OPTIWAVE 3500 C Handbook

OPTIWAVE 3500 C

3.7 Mounting restrictions

CAUTION!
Follow these recommendations to make sure that the device measures correctly. They have an
effect on the performance of the device.
We recommend that you prepare the installation when the tank is empty.

3.7.1 General notes

LPR and TLPR devices
WARNING!
LPR (Level Probing Radar) devices measure level in the open air or in a closed space (a metallic
tank etc.). TLPR (Tank Level Probing Radar) devices measure level in a closed space only. You
can use LPR devices for TLPR applications. For more data, refer to Radio approvals on page 9 .
Causes of interference signals
• Objects in the tank or pit.
• Sharp corners that are perpendicular to the path of the radar beam.
• Sudden changes in tank diameter in the path of the radar beam.
CAUTION!
Do not install the device above objects in the tank (agitator etc.) or pit. Objects in the tank or pit
can cause interference signals. If there are interference signals, the device will not measure
correctly.
If it is not possible to install the device on another part of the tank or pit, do an empty spectrum
scan. For more data, refer to Empty spectrum recording on page 93 .
Equipment and obstacles: how to prevent measurement of interference signals
Do not put the device immediately above equipment and obstacles in a tank or pit. This can have
an effect on the performance of the device.
INFORMATION!
If possible, do not install a nozzle on the tank centerline.
02/2023 - 4005813604 - MA OPTIWAVE 3500 R04 en www.krohne.com
INSTALLATION
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