VEGA VEGABAR 87 Save sensor - Operating Instructions - Manual (Page 15)

15
4 Mounting
VEGABAR 87 • Slave sensor for electronic differential pressure
45053-EN-131011
1 2 3
4 4 4
Fig. 6: 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 mounted into the electronics housing. It has the
following functions:
•
Ventilation electronics housing
•
Atmospheric pressure compensation (with relative pressure meas-
uring ranges)
1
Fig. 7: Position of the filter element - IP 69K version
1 Filter element
Instruments with absolute pressure have a blind plug mounted
instead of the filter element.
4.3 Combination Master - Slave
In principle, any sensor combination within the VEGABAR 80 series is
allowed. The following requirements must be fulfilled:
•
Configuration, Master sensor suitable for electronic differential
pressure
•
Pressure type is identical for both sensors, i.e. relative pressure/
relative pressure or absolute pressure/absolute pressure
•
The master sensor must always measure the higher pressure
•
Measurement setup as shown in the following chapters
Instruments in IP 69K
version