3 how to proceed if a repair is needed – VEGA VEGATOR 121 User Manual
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7 Maintenance and fault rectification
VEGATOR 121 •
46107-EN-131217
Cause
Rectification
Sensor current < 3.6 mA
– Check signal conditioning instrument
– Check the terminal voltage on the signal
conditioning instrument; if it is < 17 V, the
signal conditioning instrument is defective -> ex-
change signal conditioning instrument or return
it for repair
– In case the terminal voltage > 17 V, disconnect
the sensor cable on the signal conditioning
instrument and replace it with a 1 kΩ resistor.
If the fault signal does not disappear, the
signal conditioning instrument is defective -> ex-
change signal conditioning instrument or return
it for repair
– Check sensor or sensor cable
– Reconnect the sensor cable to the signal con-
ditiong instrument, disconnect the sensor and
replace it with a 1 kΩ resistor. If the fault signal
does not disappear, then the sensor cable is
broken -> replace the sensor cable
– If there is no longer a fault signal on the line,
the sensor is defective -> exchange sensor or
return it for repair
Sensor current > 21 mA
– Check signal conditioning instrument
– Disconnect sensor cable and replace it with
a 1 kΩ resistor. If the fault signal does not
disappear, the signal conditioning instrument
is defective -> exchange signal conditioning
instrument or return it for repair
– Check sensor or sensor cable
– Reconnect the sensor cable to the signal con-
ditiong instrument, disconnect the sensor and
replace it with a 1 kΩ resistor. If the fault signal
does not disappear, then the sensor cable is
short-circuited -> eliminate the short-circuit or
replace the sensor cable
– If there is no longer a fault signal on the line,
the sensor is defective -> exchange sensor or
return it for repair
7.3 How to proceed if a repair is needed
You can find a repair form as well as detailed information on how to
pr and "Forms and certifi-
cates".
By doing this you help us carry out the repair quickly and without hav-
ing to call back for needed information.
If a repair is necessary, please proceed as follows:
•
Print and fill out one form per instrument
•
Clean the instrument and pack it damage-proof
•
Attach the completed form and, if need be, also a safety data
sheet outside on the packaging