outputted by one of the integrated relays triggering the weir cleaning
.
E
xemplary we assume a max
.
level of
2
m
,
the weir cleaning should be
started at a di
ff
erence of
20
cm
.
3
4
5
h1
h3
1
2
F
ig
.
12
:
D
i
ff
erential measurement
-
weir control
1
H
eadwater
2
T
ail water
3
D
i
ff
erence h
3
4
R
eference plane
5
max
.
level h
1
T
he following steps are necessary
:
l
S
election of the application
-
S
elect under
"
D
evice settings
-
A
pplication
"
the entry
"
S
tand
-
ard
"
and con
fi
rm with
[
OK
]
.
V
ia the
[-
>
]
key you reach the next
step
.
l
A
ddressing of the sensors
-
S
ince both sensors are addressed via
HART
multidrop
,
fi
rst of
all the sensor addressing must be carried out
(
see chapter
"
S
etup procedure
"
)
-
C
onnect sensor
1
for upstream water
-
E
nter now under
"
S
ervice
-
C
hange sensor address
"
in the
menu item
"
N
ew address
"
HART
address
"
01
"
-
D
isconnect sensor
1
and connect sensor
2
for downstream
water
-
A
ssign
HART
address
"
02
"
-
R
econnect sensor
1
44
VEGAMET
625
•
D
ouble channel
HART
signal conditioning instrument
8
A
pplication examples
28970
-
EN
-
110801