4
.
2
M
ounting instructions
S
crew
VEGASON
61
into the mounting socket with an appropriate
spanner applied to the hexagon of the process
fi
tting
.
M
ax
.
torque see
chapter
"
T
echnical data
"
.
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
.
W
hen mounting the sensor
,
keep a distance of at least
200
mm
(
7
.
874
in
)
to the vessel wall
.
I
f the sensor is installed in the center of
dished or round vessel tops
,
multiple echoes can arise
.
T
hese can
,
however
,
be suppressed by an appropriate adjustment
(
see chapter
"
S
etup
"
).
1
2
> 200 mm
F
ig
.
5
:
M
ounting on round vessel tops
1
R
eference plane
2
V
essel center or symmetry axis
I
f you cannot keep this distance you should carry out a false echo
storage before setup
.
T
his applies mainly if buildup on the vessel wall
is expected
.
I
n this case
,
we recommend repeating a false echo
storage later with existing buildup
.
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 vessel bottom
.
S
crewing in
M
ounting position
VEGASON
61
•
4
…
20
m
A
/
HART
four
-
wire
13
4
M
ounting
28778
-
EN
-
081127
