VEGA VEGACAL 64 For connection to a signal conditioning instrument - Manual (Page 22)

22
7 Maintenance and fault rectification
VEGACAL 64 • For connection to a signal conditioning instrument
30319-EN-130917
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.
VEGACAL 64 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 be taken is to check the output signal. In many
cases, the causes can be determined this way and the faults 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 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.
Disconnect the signal cable and connect a multimeter with a suitable
measuring range.
Error Cause Rectification
Current signal not
stable
Level fluctuations Adjust damping in the signal condi-
tioning instrument or process control
system
Current signal
missing
Wrong connection
to voltage supply
Check connection according to
chapter "Connection steps" and if
necessary, correct according to chap-
ter "Wiring plan"
No power supply Check cables for breaks; repair if nec-
essary
Operating voltage
too low or load re-
sistance too high
Check, adapt if necessary
Reaction when malfunc-
tions occur
Failure reasons
Fault rectification
24 hour service hotline
Checking the current
signal