Vega VEGABAR 12 Bedienungsanleitung PDF herunterladen (Seite 14)

7 Maint

enance and fault rectiﬁcation

7.1 Maintenance

If the instrument is used properly, no special maintenance is required

in normal operation.

7.2 Fault rectiﬁcation

The operator of the system is responsible for taking suitable measures

to rectify faults.

VEGABAR 12 oﬀers maximum reliability. Nevertheless, faults can

occur during operation. These may be caused by the following, e.g.:

l Sensor

l Process

l Voltage supply

l 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.

? 4 … 20 mA signal not stable

l no atmospheric pressure compensation

à Check pressure compensation

? No 4 … 20 mA signal

l Connection to voltage supply wrong

à Check connection according to chapter "Connection steps"

and if necessary, correct according to chapter "Wiring plan"

l No operating voltage

à Check cables for breaks; repair if necessary

l Operating voltage too low or load resistance too high

à Check, adapt if necessary

Rea

ction when malfunc-

tions

occur

Causes of faults

Fault rectiﬁcat

ion

24 hour service hotline

Checking the 4 … 20 mA

sign

14 VEG

ABAR 12

7 M

aintenance and fault rectiﬁcation

35544-EN-110616

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