Maintenance And Fault Rectification; Maintenance; Rectify Faults - Vega VEGAMIP R61 Operating Instructions Manual

7 Maintenance and fault rectification
Reaction when malfunc-
tions occur
Fault rectification
Checking the switching
signal
Error
VEGAMIP 61 signals
"covered" without being
submerged (overfill pro-
tection)
or
VEGAMIP 61 signals "un-
covered" when being
submerged (dry run pro-
tection)
Signal lamp lights red
Instrument switches de-
layed
Instrument switches fre-
quently with certain levels
Reaction after fault recti-
fication
30
7 Maintenance and fault rectification
7.1

Maintenance

If the device is used correctly, no maintenance is required in normal
operation.
7.2

Rectify faults

The operator of the system is responsible for taking suitable meas-
ures to rectify faults.
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.
Cause
Operating voltage too low
Buildup on the sensor
Wrong mode selected
Unfavourable installation
location
Electronics defective
Sensor defective
Operating voltage too low
Electronics module has
detected an internal mal-
function
Check switching delay
Wave movements in the
vessel
Effects through interfering
reflections
Depending on the reason for the fault and the measures taken, the
steps described in chapter "Setup" must be carried out again or must
be checked for plausibility and completeness.
Rectification
Check operating voltage
Check if there is buildup on the two sensors, and if so,
remove it.
Set the correct mode on the mode switch (max.: over-
flow protection, min.: dry run protection). Wiring should
be carried out according to the idle current principle.
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.
Press the mode switch. If the instrument then does not
change the mode, the electronics module may be de-
fective. Exchange the electronics module.
Operate the mode switch (min./max.). If the instrument
then switches mode, the sensor may be covered with
buildup or mechanically damaged.
If the switching function in the correct mode is faulty, re-
turn the instrument for repair.
Check operating voltage
Exchange the instrument or send it in for repair
Adjust switching delay correctly
Adjust or increase switching delay
Adjust the instrument to less sensitive
VEGAMIP R61 • Receiving unit