6
3 Mounting
VEGABAR 82 • Slave sensor for electronic differential pressure
46332-EN-160212
3 Mounting
3.1 General instructions for use of the instrument
Protect your instrument against moisture ingress through the following
measures:
•
Use the recommended cable (see chapter "
Connecting to power
supply
")
•
Tighten the cable gland
•
When mounting horizontally, turn the housing so that the cable
gland points downward
•
Loop the connection cable downward in front of the cable gland
This applies mainly to outdoor installations, in areas where humidity is
expected (e.g. through cleaning processes) and on cooled or heated
vessels.
3.2 Ventilation and pressure compensation
The filter element is mounted into the electronics housing. It has the
following functions:
•
Ventilation of the electronics housing
•
Atmospheric pressure compensation (with relative pressure meas
-
uring ranges)
→
Turn the housing so that the filter element points downward after
the instrument is installed. This provides better protection against
buildup.
1
2
3
4
4
4
Fig. 2: Position of the filter element - non-Ex, Ex-ia version
1 Housing plastic, stainless steel precision casting
2 Housing aluminium
3 Housing stainless steel, electropolished
4 Filter element
With the following instruments a blind plug is installed instead of the
filter element:
•
Instruments in protection IP 66/IP 68 (1 bar) - ventilation via capil
-
laries in non-detachable cable
•
Instruments with absolute pressure
3.3 Combination Master - Slave
In principle, any sensor combination within the VEGABAR 80 series is
allowed. The following requirements must be fulfilled:
Protection against mois-
ture
Instruments in non-Ex
and Ex-ia version
