Maintenance And Fault; Maintenance; Fault Rectification; Instrument Repair - Vega VEGABAR S 16 Manual De Instrucciones

Maintenance and fault rectification

6 Maintenance and fault

rectification

6.1 Maintenance

If the instrument is used properly, no special
maintenance is required in normal operation.
6.2 Fault rectification
Failure reasons
VEGABAR S 16 offers maximum reliability.
Nevertheless, faults can occur during operation.
These may be caused by the following, e.g.:
Sensor
l
Process
l
Voltage supply
l
Signal processing
l
Fault rectification
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.
24 hour service hotline
Should these measures not be successful, please
call in urgent cases the VEGA service hotline under
the phone no. +49 1805 858550.
The hotline is available to you 7 days a week
round-the-clock. Since we offer this service world-
wide, the support is only available in the English
language. The service is free of charge, only the
standard telephone costs will be charged.
Checking the 4 ... 20 mA signal
?
4 ... 20 mA signal not stable
no atmospheric pressure compensation
l
à
Check the pressure compensation in the
plug or via the capillaries
?
No 4 ... 20 mA signal
Connection to voltage supply wrong
l
à
Check connection according to chapter
"Connection steps" and if necessary,
correct according to chapter "Wiring plan"
20
No voltage supply
l
à
Check cables for breaks; repair if neces-
sary
Supply voltage too low or load resistance
l
too high
à
Check, adapt if necessary
?
Current signal 22 mA
electronics module or measuring cell de-
l
fective
à
Exchange the instrument or send it in for
repair
In Ex applications, the regulations for the
wiring of intrinsically safe circuits must be
observed.

6.3 Instrument repair

If a repair is necessary, please proceed as follows:
You can download a return form (23 KB) from our
Internet homepage www.vega.com under: "Down-
loads - Forms and certificates - Repair form".
By doing this you help us carry out the repair
quickly and without having to call back for needed
information.
Print and fill out one form per instrument
l
Clean the instrument and pack it damage-proof
l
Attach the completed form and, if need be, also
l
a safety data sheet outside on the packaging
Please ask the agency serving you for the
l
address of your return shipment. You can find
the respective agency on our website www.
vega.com under: "Company - VEGA world-
wide"
VEGABAR S 16