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If faults occur that are not listed above or cannot be corrected, please contact our service centre or
authorized agency in your country.
Action against high frequency interference
Further Notes
n
Switch off supply voltage and
cut off power supply
to the equipment.
n
Remove the lower and upper terminal strips.
Fig. 11.
n
Release the white fixing slide at the bottom of the equipment and take the equipment off the
supporting rail.
Decommissioning / replacing the equipment
Disposal
For the disposal of the equipment observe the pertinent legal regulations concerning waste disposal.
High-frequency interference can be caused by out-of-phase switching operations. Should sporadic
failures or malfunctions occur take the following remedial actions in order to suppress interference:
n
Provide inductive loads with RC combinations according to manufacturer’s specification to ensure
interference suppression.
n
Increase the distance to sources of interference.
n
Check the connection of the screen to the central earthing point (CEP) in the control cabinet.
n
HF interference suppression by means of hinged-shell ferrite rings.
n
Make sure that connecting cables leading to the level electrodes are segregated and run separately
from power cables.
