VEGA VEGABAR 82 Save sensor - Operating Instructions - Manual (Page 15)

15
4 Mounting
VEGABAR 82 • Slave sensor for electronic differential pressure
45050-EN-131011
1 2 3
4 4 4
Fig. 8: 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 fix connected cable
•
Instruments with absolut pressure
The filter element is integrated in the process assembly. It is located in
a rotatable metal ring and has the following functions:
•
Atmospheric pressure compensation (with relative pressure meas-
uring ranges)
Turn the metal ring in such a way that the filter element points down-
ward after installtion of the instrument. This provides better protection
against buildup.
1
2
Fig. 9: Position of the filter element - Ex-d version
1 Single chamber housing, aluminium, stainless steel precision casting
2 Rotatable metal ring
3 Filter element
With absolute pressure measuring ranges, a blind plug is used
instead of the filter element.
The filter element is mounted into the electronics housing. It has the
following functions:
•
Ventilation electronics housing
•
Atmospheric pressure compensation (with relative pressure meas-
uring ranges)
Instruments in Ex-d ver-
sion
Instruments with Second
Line of Defense