VEGA VEGAFLEX 82 4 … 20 mA_HART four-wire - Manual (Page 18)

18
4 Mounting
VEGAFLEX 82 • 4 … 20 mA/HART - four-wire
41830-EN-130314
When welding the socket, make sure that the socket is flush to the
vessel top.
1 2
Fig. 9: Socket must be installed flush
1 Unfavourable installation
2 Socket flush - optimum installation
Before beginning the welding work, remove the electronics module
from the sensor. By doing this, you avoid damage to the electronics
through inductive coupling.
Do not mount the instruments in or above the filling stream. Make sure
that you detect the product surface, not the inflowing product.
Fig. 10: Mounting of the sensor with inflowing medium
The reference plane for the measuring range of the sensors is the
sealing surface of the thread or flange.
Keep in mind that a min. distance must be maintained below the refer-
ence plane and possibly also at the end of the probe - measurement
in these areas is not possible (dead band). The length of the cable
can be used all the way to the end only when measuring conductive
Welding work
Inflowing medium
Measuring range