VEGA VEGABAR 54 Profibus PA - Manual (Page 12)

12
4 Mounting
VEGABAR 54 • Profibus PA
36729-EN-130321
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.
Select an installation position you can easily reach for mounting and
connecting as well as later retrofitting of a display and adjustment
module. The housing can be rotated by 330° without the use of any
tools. You can also install the display and adjustment module in four
different positions (each displaced by 90°).
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. 3: Measures against moisture penetration
4.2 Mounting steps
For mounting VEGABAR 54, a welded socket is required. You can find
these components in the supplementary instructions manual "Welded
socket and seals".
Use the seal fitting belonging to the instrument, or in case of NPT
connections, a high-resistance sealing material.
→
Screw VEGABAR 54 into the welded socket. Tighten the hexagon
on the process fitting with a suitable wrench. Wrench size, see
chapter "Dimensions".
Suitability for the process
conditions
Installation position
Moisture
Welding the socket
Sealing/Screwing in
threaded versions