l
T
he level sensor in the vessel is a pressure transmitter
(
passive
),
outputting a standardised
4
…
20
m
A
signal
l
F
or further processing
,
an additional
4
…
20
m
A
output
signal is required
l
T
he full and empty adjustment was carried out directly in
the sensor
.
T
he following values are outputted
:
-
M
ax
.
volume
(
display max
.)
20
m
A
=
2650
l
-
M
in
.
volume
(
display min
.)
4
m
A
=
50
l
l
R
elay
1
should switch on an emptying pump at a level of
90
%
and switch o
ff
the pump at a level of
10
%
1
S
elect the following functions with the rotary switch
.
2
P
ush one of the two
[
+
/-
]
adjustment keys
,
the digital
indication
fl
ashes
(
if the rotary switch is set to
"
OPERATE
"
,
the
[
+
/-
]
keys are inoperable
)
3
A
djust the requested value with the
[
+
/-
]
keys
.
I
f you hold
the key pushed
,
the digital indication changes the value
more quickly
.
4
S
ave your settings by pushing the
[
+
/-
]
keys simultaneously
à
S
et the function switch to position
[
8
].
S
elect with the
[
+
/-
]
keys the measured value output
4
…
20
m
A
or
0
…
20
m
A
.
F
or this example
,
choose
4
-
20
.
T
he displayed numbers have the following meanings
:
l
0
-
20
=
0
…
20
m
A
l
4
-
20
=
4
…
20
m
A
à
S
ave the value by pushing the
[
+
/-
]
keys simultaneously
T
o scale the indication of
VEGAMET
381
E
x
,
the
fi
lling
volumes for
0
%
and
100
%
.
T
he vessel does not have to be
fi
lled or emptied
.
1
S
et the function switch to position
[
7
] (
display min
.)
2
S
et the value to
50
via the
[
+
/-
]
keys
3
S
ave the value by pushing both keys simultaneously
1
S
et the function switch to position
[
6
] (
display max
.)
2
S
et the value to
2650
via the
[
+
/-
]
keys
3
S
ave the value by pushing both keys simultaneously
S
ince the range of the example tank is between
50
l and
2650
l
,
you need a digital indication for every four positions
.
1
S
et the function switch to position
[
5
] (
D
ecimal
P
oint
)
2
B
y pushing the
[
+
/-
]
keys
,
you move the decimal point
3
S
ave the value by pushing both keys simultaneously
G
eneral procedure
C
urrent output
S
caled indication at
0
%
S
caled indication at
100
%
D
ecimal point
VEGAMET
381
E
x
-
4
…
20
m
A
signal conditioning instrument
21
S
etup with the integrated indicating and adjustment unit
30418
-
EN
-
060925
Содержание VEGAMET 381 Ex
Страница 1: ...Operating Instructions VEGAMET 381 Ex 4 20 mA signal conditioning instru ment in out...
Страница 30: ...Supplement 30 VEGAMET 381 Ex 4 20 mA signal conditioning instrument 30418 EN 060925...
Страница 31: ...Supplement VEGAMET 381 Ex 4 20 mA signal conditioning instrument 31 30418 EN 060925...
