VEGA VEGAPULS 66 (≥ 2.0.0 - ≥ 4.0.0) standpipe ver. 4 … 20 mA_HART - two-wire - Manual (Page 14)

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4 Mounting
VEGAPULS 66 standpipe version • 4 … 20 mA/HART - two-wire
36523-EN-121011
4 Mounting
4.1 General instructions
With instruments with threaded process fitting, suitable tools must be
applied for tightening the hexagon.
Warning:
The housing must not be used to screw the instrument in! Applying
tightening force can damage internal parts of the housing.
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.
Make sure that all parts of the instrument exposed to the process, in
particular the active measuring component, process seal and process
fitting, are suitable for the existing process conditions. These include
above all the 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
type label.
4.2 Instructions for installation
By using the standpipe version, the influence of turbulence and ves-
sel installations, such as e.g. heating spirals or agitators, is excluded.
If turbulence or vigorous product movement occurs in the vessel, long
standpipe antennas should be fastened to the vessel wall.
The standpipe antenna must extend all the way down to the request-
ed min. level, as measurement is only possible within the tube. If a
good mixing of the product is important, you should use a version with
perforated surge pipe.
Screwing in
Moisture
Suitability for the process
conditions
Installation