Maintenance And Fault Rectification; Maintenance; Rectify Faults; How To Proceed If A Repair Is Needed - Vega VEGABAR 17 Operating Instructions Manual

7 Maintenance and fault rectification
Reaction when malfunc-
tions occur
Causes of malfunction
Fault rectification
24 hour service hotline
Check the 4 ... 20 mA
signal
Reaction after fault recti-
fication
20
7 Maintenance and fault rectification
7.1

Maintenance

If the instrument is used properly, no special 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.
VEGABAR 17 offers maximum reliability. Nevertheless, faults can oc-
cur during operation. These may be caused by the following, e.g.:
•
Sensor
•
Process
•
Voltage supply
•
Signal processing
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.
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 manned 7 days a week round-the-clock. Since we offer
this service worldwide, the support is only available in the English
language. The service is free, only standard call charges are incurred.
Error code Cause
No 4 ... 20 mA Connection to voltage
signal supply wrong
No operating voltage
Operating voltage too
low or load resistance
too high
Steady output Electronics module or
signal with pres- measuring cell defective
sure change
In Ex applications, the regulations for the wiring of intrinsically safe
circuits must be observed.
Depending on the reason for the fault and the measures taken, the
steps described in chapter "Set up" may have to be carried out again.
7.3

How to proceed if a repair is needed

You can find a repair form as well as detailed information on how to
proceed at www.vega.com/downloads and "Forms and certificates".
Rectification
Check connection according to
chapter "Connection steps" and
if necessary, correct according to
chapter "Wiring plan"
Check cables for breaks; repair if
necessary
Check, adapt if necessary
Exchange the instrument or send
it in for repair
VEGABAR 17 •