4
M
ounting
4
.
1
G
eneral instructions
I
n general the level switch can be mounted in any position
.
T
he
instrument must be mounted in such a way that the probe is at the
height of the requested switching point
.
T
he probe is provided with a special hexagon for tightening
.
D
ue to the
hexagon shape
,
the housing itself can be used to screw the instrument
in
.
T
he wrench size is stated in chapter
"
S
upplement
"
under
"
D
imen
-
sions
"
.
U
se the recommended cables
(
see chapter
"
C
onnecting to power
supply
"
)
and tighten the cable gland
.
Y
ou can give your
EL
4
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
.
F
ig
.
2
:
M
easures against moisture penetration
D
o not hold
EL
4
on its electrode rods
.
P
articularly with long rod
versions
,
the sensor can be damaged by the weight of the instrument
.
T
he process
fi
tting must be sealed if there is gauge or low pressure in
the vessel
.
B
efore use
,
check if the seal material is resistant against
the measured product and the process temperature
.
T
he max
.
permissible pressure is speci
fi
ed in chapter
"
T
echnical data
"
or on the type label of the sensor
.
4
.
2
M
ounting instructions
D
ue to agitators
,
equipment vibration or similar
,
the level switch can be
subjected to strong lateral forces
.
S
witching point
H
andling
M
oisture
T
ransport
P
ressure
/
V
acuum
A
gitators and
fl
uidiza
-
tion
C
onductive probe
EL
4
9
4
M
ounting
32653
-
EN
-
090415
