VEGA VEGATOR 632 - Manual (Page 50)

12 Maintenance and fault rectification
12 .1 Maintaining
If the instrument is used properly, no special maintenance is required
in normal operation.
12 .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 Voltage supply
l Interference on the cables
The first measure to be taken is to check the input and output signals.
The procedure is described as follows. In many cases the causes can
be determined this way and faults can be easily 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.
? 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 Probe without line break monitoring
à Check if in the sensor housing between terminals 1 and 2 the
electronics for line break monitoring is mounted. If the probe
has no line break monitoring, set the switch for line break
monitoring (alarm) on the signal conditioning instrument to off.
In Ex systems, make sure that the Ex protection is not compromised by
the possible use of measuring instruments.
? The signal conditioning instrument does not switch when the
respective probe is covered or uncovered
l Operating voltage missing (green control lamp is off)
à Check the electrical connection cables
Failure reasons
Fault rectification
24 hour service hotline
Malfunction
50 VEGATOR 632 • Signal conditioning instrument
12 Maintenance and fault rectification
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-EN
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