4
M
ounting
4
.
1
G
eneral instructions
W
ith instruments with threaded process
fi
tting
,
suitable tools must be
applied for tightening the hexagon
.
W
arning
:
T
he housing must not be used to screw the instrument in
!
A
pplying
tightening force can damage internal parts of the housing
.
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
.
M
ake sure that all parts of the instrument exposed to the process
,
in
particular the antenna
,
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
.
4
.
2
M
ounting preparations
-
H
orn antenna
T
he instrument is also available in versions where the antenna has a
bigger diameter than the process
fi
tting
(
thread
,
fl
ange
).
T
he antenna
must therefore be disconnected from the process
fi
tting before
mounting
.
P
roceed as follows
:
1
L
oosen the hexagon screws
(
3
)
on the antenna socket with an
A
llen wrench
(
size
3
)
2
R
emove the antenna
(
4
)
N
ote
:
T
he plastic conemust not be pulled out of the antenna socket
.
3
I
nsert the antenna from below into the vessel socket and secure it
against falling o
ff
4
R
etighten the antenna with hexagon screws to the antenna socket
;
torque max
.
10
N
m
(
7
.
5
lbf ft
)
S
crewing in
M
oisture
S
uitability for the pro
-
cess conditions
VEGAPULS
62
•
4
…
20
m
A
/
HART
two
-
wire
11
4
M
ounting
36503
-
EN
-
100607
