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6 Maintenance and fault rectification
Reaction after fault rec-
tification
22
à Check the pressure compensation and clean the filter
element, if necessary
4 ... 20 mA signal missing
?
Wrong connection to voltage supply
l
à Check connection according to chapter "Connection steps"
and if necessary, correct according to chapter "Wiring plan"
No power supply
l
à Check cables for breaks; repair if necessary
Operating voltage too low or load resistance too high
l
à Check, adapt if necessary
In Ex applications, the regulations for the wiring of intrinsically safe
circuits must be observed.
Depending on the reason for the fault and the measures taken, the
steps described in chapter "Set up" may have to be carried out again.
6.3 Shorten suspension cable
Shorten the suspension cable individually. Proceed as follows:
Remove the filter adapter from the transparent capillary line
1
Cut the suspension cable with an edge cutter to the requested
2
length
Caution:
Do not squeeze the capillary cable, this will influence the pressure
compensation. If necessary, rework with a sharp knife.
Remove approx. 10 cm of the cable mantle, strip off approx. 1 cm
3
of the wire ends
Insert the filter adapter
The work steps are finished.
6.4 Shorten suspension cable
The suspension cable can be shortened individually. For the version
with plastic or stainless steel housing proceed as follows:
Unscrew the housing cover
1
Loosen the screw terminals and remove the wire ends of the
2
suspension cable out of the screw terminals
Hold the hexagon on the screwed socket with SW 46 and loosen
3
with seal screw SW 22
Caution:
Seal screw is secured with Loctide pink, mote breakaway torque!
VEGAWELL 52 • 4 ... 20 mA
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