l
3
:
R
elay
2
switching point
ON
l
4
:
R
elay
2
switching point
OFF
l
5
:
D
ecimal point position of the scaling
l
6
:
S
caling for
100
%
l
7
:
S
caling for
0
%
l
8
:
S
witch over current output
0
/
4
…
20
m
A
l
9
:
D
amping of the measured value
(
integration time
)
l
A
:
O
ff
set correction
l
B
:
M
in
.
adjustment in percent by changing the level
l
C
:
M
ax
.
adjustment in percent by changing the level
l
D
:
M
in
.
adjustment in m
A
without modifying the level
l
E
:
M
ax
.
adjustment in m
A
without modifying the level
l
F
:
N
o function
W
hen a pressure transmitter is used
,
an o
ff
set correction
should be carried out
fi
rst
.
T
hese instruments are factory
-
set in
a certain position
.
I
f the pressure transmitter is now mounted in
a di
ff
erent position
,
its measuring range is shifted slightly
.
T
he
zero point is readjusted by carrying out the o
ff
set correction in
uncovered
(
unpressurised
)
condition
.
T
he complete measur
-
ing range will be shifted by the deviating amount
.
à
M
ake sure that the pressure transmitter is completely
unpressurised
,
uncovered
(
unimmersed
)
and mounted in
its
fi
nal position
.
à
S
et the function switch to position
[
A
].
T
he display
indicates now the actual sensor current in m
A
.
S
ave the
current status by pushing the
[
+
/-
]
keys simultaneously
.
F
or this adjustment procedure
,
two sensor current values
(
4
…
20
m
A
)
must be entered corresponding to the levels
0
%
and
100
%
.
W
hen using a pressure transmitter
,
an o
ff
set correction should
be carried out to reach maximum accuracy
.
C
arry out this
o
ff
set correction before adjustment and with the sensor
uncovered
(
unimmersed
).
à
S
elect now position
[
D
]
or
[
E
]
on the function switch
,
enter
the current values in m
A
for min
.
or max
.
adjustment and
save your settings
.
D
uring this adjustment procedure
,
the current level is assigned
to a certain percentage value
.
F
or this reason
,
percentage
values that correspond to the actual
fi
lling levels must be
entered for the min
.
and max
.
adjustment
.
T
he ideal calibration
is at
0
%
and
100
%
.
B
ecause it is not always possible to
empty or
fi
ll a vessel completely
,
any value can of course be
O
ff
set correction
A
djustment in m
A
without
changing the level
A
djustment in
%
by changing
the level
VEGAMET
381
E
x
-
4
…
20
m
A
signal conditioning instrument
17
S
etup with the integrated indicating and adjustment unit
30418
-
EN
-
060925
