VEGA VEGADIS 11 - Manual (Page 17)

? 4 … 20 mA signal missing
l
Wrong connection to power supply
à Check connection according to chapter "Connection
steps" and if necessary, correct according to chapter
"W
iring plan"
l
No voltage supply
à Check cables for breaks; repair if necessary
l
supply voltage too low or load resistance too high
à Check, adapt if necessary
? Current signal 3.6 mA; 22 mA
l
Oscillator in the sensor defective
à Exchange instrument or return instrument for repair
In Ex applications, the regulations for the wiring of intrinsically
safe circuits must be observed.
Depending on the failure reason and measures taken, the
steps described in chapter "Set up" must be carried out again,
if necessary.
7 .3 Instrument repair
If a repair is necessary, please proceed as follows:
You can download a return form (23 KB) from our Internet
homepage www.vega.com under: "D
ownloads - Forms and
certificates - Repair form".
By doing this you help us carry out the repair quickly and
without having to call back for needed information.
l
Print and fill out one form per instrument
l
Clean the instrument and pack it damage-proof
l
Attach the completed form and, if need be, also a safety
data sheet outside on the packaging
l
Please ask the agency serving you for the address of your
return shipment. You can find the respective agency on our
website www.vega.com under: "C
ompany - VEGA world-
wide"
Reaction after fault rec-
tification
VEGADIS 11 17
Maintenance and fault rectification
19888
-
EN
-080227