Siemens SITRANS LVL200E - Page 26

26
MAN-100411
SITRANS LVL200E - Operating Instructions
55328-EN-170712
Check if the switching status changes (signal lamp - switching
status). By doing so, you can check the function of the measuring
system.
If this is not the case, then there is a fault in the measuring sys-
tem.
Make sure the connected downstream devices are activated dur-
ing the function test.
3. Fill the vessel up to the switching point.
Check if the switching status changes (signal lamp - switching
status). By doing so, you can check the function of the measuring
system.
If this is not the case, then there is a fault in the measuring sys-
tem.
Make sure the connected downstream devices are activated dur-
ing the function test.
You can dismount the sensor for test purposes and check its function
by immersing the vibrating element in the original medium.
Procedure
1. Carry out the function test according to the above description (1
Short interruption of the supply line to the sensor.
Separatetheinstrumentbriey(>2s)fromvoltagesupplyor
push the test key.
Check the results of the test.
Make sure the connected downstream devices are activated dur-
ing the function test.
2. Push the mode switch (min./max.) on the signal conditioning
instrument.
Check if the switching status changes (signal lamp - switching
status). By doing so, you can check the function of the measuring
system.
If this is not the case, then there is a fault in the measuring sys-
tem.
Make sure the connected downstream devices are activated dur-
ing the function test.
3. Dismount the instrument and immerse the vibrating element up to
the switching point in the original medium.
Check if the switching status changes (signal lamp - switching
status). By doing so, you can check the function of the measuring
system.
If this is not the case, then there is a fault in the measuring sys-
tem.
Make sure the connected downstream devices are activated dur-
ing the function test.
Thistestisvalidifyoucannotchangethevesselllingorcannot
dismount the sensor.
2 Dismounting of the sen-
sor and immersion in the
original medium
3 Short interruption of the
supply line to the sensor