4
M
ounting
4
.
1
G
eneral instructions
M
ake sure that all parts of the instrument exposed to the process
,
in
particular the sensor element
,
process seal and process
fi
tting
,
are
suitable for the existing process conditions
.
T
hese include above all
the process pressure
,
process temperature as well as the chemical
properties of the medium
.
Y
ou can
fi
nd the speci
fi
cations in chapter
"
T
echnical data
"
or on the
type label
.
S
elect an installation position you can easily reach for mounting and
connecting as well as later retro
fi
tting of an indicating and adjustment
module
.
T
he housing can be rotated by
330
°
without the use of any
tools
.
Y
ou can also install the indicating and adjustment module in four
di
ff
erent positions
(
each displaced by
90
°
).
B
efore beginning the welding work
,
remove the electronics module
from the sensor
.
B
y doing this
,
you avoid damage to the electronics
through inductive coupling
.
W
ith threaded versions
,
the housing must not be used to screw in the
instrument
!
A
pplying tightening forces on the housing can damage its
internal parts
.
U
se the hexagon for screwing in
.
U
se the recommended cables
(
see chapter
"
C
onnecting to power
supply
"
)
and tighten the cable gland
.
Y
ou can give your instrument additional protection against moisture
penetration by leading the connection cable downward in front of the
cable entry
.
R
ain and condensation water can thus drain o
ff
.
T
his
applies 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
.
S
uitability for the pro
-
cess conditions
M
ounting position
W
elding work
H
andling
M
oisture
10
VEGAFLEX
61
•
P
ro
fi
bus
PA
4
M
ounting
31835
-
EN
-
100426