VEGA VEGAMIP R61 Receiving unit - Transistor - Manual (Page 33)

7 Maintenance and fault rectification
7 .1 Maintaining
If the device is used correctly, no maintenance is required in normal
operation.
7 .2 Remove interferences
The operator of the system is responsible for taking suitable measures
to rectify faults.
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 Rectification
VEGAMIP 61
signals
" covered" without being
submerged (overfill pro-
tection)
or
VEGAMIP 61
signals
" uncovered" when being
submerged (dry run pro-
tection)
Operating voltage too low Check operating voltage
Buildup on the sensor Check if there is buildup on the two sensors, and if so,
remove it.
Wrong mode selected Set the correct mode on the mode switch (max.:
overflow protection, min.: dry run protection). Wiring
should be carried out according to the quiescent current
principle.
Unfavourable installation
location Mount the sensor (emitter/receiver) in a position where
there is a lot of measured product between emitting and
receiving unit.
Mount the sensor (emitter/receiver) in a psoition where
there are no interfering installations or moving parts.
Electronics defective Push the mode switch. If the instrument then does not
change the mode, the electronics module may be
defective. Exchange the electronics module.
Sensor defective Push the mode switch (min./max.). If the instrument
switches over, the sensor can be covered or mechani-
cally damaged.
Should the switching function on the correct mode be
wrong again, the you should return the instrument for
repair.
Signal lamp lights red Operating voltage too low Check operating voltage
Electronics module has
detected an internal failure Exchange the instrument or send it in for repair
Instrument switches de-
layed Check switching delay Adjust switching delay correctly
Reaction when malfunc-
tions occur
Fault rectification
Checking the switching
signal
VEGAMIP R 61 • - Transistor 33
7 Maintenance and fault rectification
40694
-
EN
-120228