F
ig
.
2
:
M
easures against moisture penetration
T
he reference plane for the measuring range of the sensors is the
sealing surface of the thread or
fl
ange
.
K
eep in mind that a min
.
distance must be maintained below the
reference plane and possibly also at the end of the probe
-
measurement in these areas is not possible
(
dead band
).
K
eep in mind
that the cable length cannot be used all the way to the end because
measurement in the area of the gravity weight is not possible
.
T
hese
dead bands are listed in chapter
"
T
echnical data
"
.
K
eep in mind for the
adjustment that the default setting for the measuring range refers to
water
.
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
M
ount
VEGAFLEX
61
in such a way that the distance to vessel
installations or to the vessel wall is at least
300
mm
(
12
in
).
D
uring operation
,
the probe must not touch any installations or the
vessel wall
.
I
f necessary
,
fasten the probe end
.
I
n vessels with conical bottom it can be advantageous to mount the
sensor in the center of the vessel
,
as measurement is then possible
down to the lowest point of the bottom
.
W
hen using the cable version
,
M
easuring range
P
ressure
M
ounting position
VEGAFLEX
61
•
P
ro
fi
bus
PA
11
4
M
ounting
31835
-
EN
-
100426
