VEGA VEGATOR 532 Ex - Manual (Page 25)

7 Maintenance and fault rectification
7 .1 Maintenance
When used in the correct way, no special maintenance is required in
normal operation.
7 .2 Remove interferences
A maximum of reliability is ensured. Nevertheless, faults can occur
during operation. These may be caused by the following, e.g.:
l Measured value from sensor not correct
l Power supply
l Interference on the cables
The first measure to be taken is to check the input/output signal. In
many cases, the causes can be determined this way and the faults
rectified.
However, should these measures not be successful, call the VEGA
service hotline in urgent cases 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.
? The red failure control lamp (LED) of the signal conditioning
instrument lights
l Sensor not connected correctly
à Check the electrical connection by means of the wiring plans
l Line break
à Check the electrical connection cables from the probe to the
signal conditioning instrument
l Resistance for line monitoring missing
à Check if a resistor of 220 kΩ is mounted in the sensor housing
between terminals 1 and 2 or if the respective soldering bridge
to the fault message adjustment on the signal conditioning
instrument is closed.
à You can find further information in chapter "Set up - Failure
adjustment, bridge".
In Ex systems, make sure that the Ex protection is not influenced by the
measuring instruments used.
Causes of malfunction
Fault rectification
24 hour service hotline
Failure
VEGATOR 532 Ex • Signal conditioning instrument 25
7 Maintenance and fault rectification
23435
-EN
-090130