19
7Maintenanceandfaultrectication
VEGATOR 121 •
46107-EN-160912
Reason Removal
Sensor current < 3.6 mA •
Check signal conditioning instrument
•
Check the terminal voltage on the signal condi-
tioning instrument; if it is < 17 V, the signal condi-
tioning instrument is defective -> exchange signal
conditioning instrument or return it for repair
•
If the terminal voltage is > 17 V, disconnect the
sensor cable at the signal conditioning instrument
andreplaceitwitha1kΩresistor.Ifthefault
signal does not disappear, the signal conditioning
instrument is defective -> exchange signal condi-
tioning 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
replaceitwitha1kΩresistor.Ifthefaultsignal
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
1kΩresistor.Ifthefaultsignaldoesnotdisap-
pear, the signal conditioning instrument is defec-
tive -> 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
replaceitwitha1kΩresistor.Ifthefaultsignal
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 necessary
Youcanndaninstrumentreturnformaswellasdetailedinforma-
tion about the procedure in the download area of our homepage:
www.vega.com.
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:
• Printandlloutoneformperinstrument
• 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
• Please contact the agency serving you to get the address for
thereturnshipment.Youcanndtheagencyonourhomepage
www.vega.com.