VEGA VEGASON 61 Foundation Fieldbus - Manual (Page 10)

10
4 Mounting
VEGASON 61 • Foundation Fieldbus
28790-EN-130417
4 Mounting
4.1 General instructions
Make sure that all parts of the instrument coming in direct contact
with the process, especially the sensor element, process seal and
process fitting, are suitable for the existing process conditions, such
as process pressure, process temperature as well as the chemical
properties of the medium.
You can find the specifications in chapter "Technical data" and on the
nameplate.
Use the recommended cables (see chapter "Connecting to power
supply") and tighten the cable gland.
You can give your instrument additional protection against moisture
penetration by leading the connection cable downward in front of the
cable entry. Rain and condensation water can thus drain off. This ap-
plies mainly to outdoor mounting as well as installation in areas where
high humidity is expected (e.g. through cleaning processes) or on
cooled or heated vessels.
Fig. 2: Measures against moisture penetration
The reference plane for the measuring range is the lower edge of the
transducer.
Make sure that a minimum distance from the reference plane - the
so-called dead band, in which measurement is not possible - is
maintained. The exact value of the dead band is stated in chapter
"Technical data".
Suitability for the process
conditions
Moisture
Measuring range