Siemens SITRANS LVL100 사용 설명서 - 페이지 21

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Siemens SITRANS LVL100 사용 설명서

Maintenance

Cleaning
Verhalten bei Störungen
Causes of malfunction
Fault rectification
Checking the switching
signal
7 Maintenance and fault rectification
7.1
Maintenance
If the device is used properly, no special maintenance is required in
normal operation.
The cleaning helps that the type label and markings on the instrument
are visible.
Take note of the following:
•
Use only cleaning agents which do not corrode the housings, type
label and seals
•
Use only cleaning methods corresponding to the housing protec-
tion rating
7.2

Rectify faults

Es liegt in der Verantwortung des Anlagenbetreibers, geeignete
Maßnahmen zur Beseitigung aufgetretener Störungen zu ergreifen.
The device offers maximum reliability. Nevertheless, faults can occur
during operation. These may be caused by the following, e.g.:
•
Sensor
•
Process
•
Voltage supply
•
Signal processing
The first measure to take is to check the output signal. In many cases,
the causes can be determined this way and the faults quickly rectified.
Error
Cause
Green signal
Voltage supply in-
lamp off
terrupted.
Electronics de-
fective
Red signal lamp
Error with the
lights (switching
electrical con-
output high-im-
nection
pedance)
Shortcircuit or
overload
Red signal lamp
Vibrating fre-
flashes (switching
quency out of
output high-im-
specification
pedance)
Buildup on the vi-
brating element
Vibrating element
damaged
SITRANS LVL100 - Operating Instructions
Rectification
Check the voltage supply and the ca-
ble 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 re-
move it
Check if the vibrating element is dam-
age or extremely corroded
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