Burkert 8110 Mode D'emploi page 20

7 Maintenance and fault rectification
Reaction when malfunc-
tions occur
Failure reasons
Fault rectification
Checking the switching
signal
Reaction after fault rec-
tification
20
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7 Maintenance and fault rectification
7.1 Maintenance
If the instrument is used properly, no special maintenance is required
in normal operation.
7.2 Rectify faults
The operator of the system is responsible for taking suitable measures
to rectify faults.
LEVEL SWITCH 8110 offers maximum reliability. Nevertheless, faults
can occur during operation. These may be caused by the following, e.
g.:
Sensor
l
Process
l
Voltage supply
l
Signal processing
l
The first measure to be taken is to check the output signal. In many
cases, the causes can be determined this way and the faults rectified.
Error Cause
Green signal lamp Voltage supply
off interrupted.
Electronics de-
fective
Red signal lamp Error with the
lights (switching electrical connec-
output high-impe- tion
dance)
Shortcircuit or
overload
Red signal lamp Virbating fre-
flashes (switching quency out of
output high-impe- specification
dance)
Buildup on the vi-
brating element
Vibrating element
damaged
Depending on the reason for the fault and the measures taken, the
steps described in chapter "Set up" may have to be carried out again.
LEVEL SWITCH 8110 • With extended status indication
Rectification
Check the voltage supply and the
cable connection
Exchange the instrument or send it in
for repair
Connect the instrument according to
the wiring plan
Check the electrical connection
Check the vibrating element on build-
up and remove it
Check the vibrating element and the
sensor if there is buildup and remove it
Check if the vibrating element is
damage or extremely corroded