Mounting Preparations - Vega VEGABAR 66 Operating Instructions Manual

4 Mounting
14
1
2
Fig. 4: Position of the filter element
1
Filter element
2
Blind stopper
Caution:
Due to the filter effect, the pressure compensation is time delayed.
When opening/closing the housing cover quickly, the measured value
can change for a period of approx. 5 s by up to 15 mbar.
Information:
Make sure that the filter element is always free of buildup during
operation. A high-pressure cleaner may not be used for cleaning.
With instrument versions in protection IP 66/IP 68, 1 bar, the ventilation
is realised via the capillaries in the permanently connected cable. The
filter element is replaced by a blind stopper.

4.2 Mounting preparations

For the suspension cable version note the following points when
selecting the mounting position:
Sideways movements of the transmitter can cause measurement
l
errors
à Therefore, mount VEGABAR 66 in a calm area or in a suitable
protective tube
The suspension cable has a capillary for atmospheric pressure
l
compensation
à Therefore lead the cable end into a dry space or directly to the
external electronics
The external electronics is provided with terminals and a filter element
for pressure compensation. Keep in mind for all versions:
1
2
1
VEGABAR 66 • Foundation Fieldbus
1
2
2