B
ecause
VEGAMET
625
has two inputs
,
the measurement loops must
be assigned to the inputs
.
A
fter the addresses of the
HART
sensors
are assigned
,
a list of the existing sensors can be prepared and
displayed via the sensor search
.
N
ow you can assign the requested
sensor to each measurement loop
.
F
or transmission
,
VEGAMET
625
must be informed which
"
S
ensor
value
"
should be used for further processing
.
D
epending on the sensor
type this can be distance
,
pressure
,
interface or temperature
.
W
hen
HART
sensors of other manufacturers are connected
,
the options
PV
(
P
rimary
V
alue
)
and
SV
(
S
econdary
V
alue
)
will be available
.
P
rerequisite is that the
HART
commands
0
,
1
,
3
and
15
are supported
.
T
his information and which measured values should be transmitted is
stated in the operating instructions manual of the respective sensor
manufacturer
.
T
he measured variable de
fi
nes the applicaton of the measurement
loop
,
the following settings are available depending on the connected
sensor
:
l
L
evel
l
P
rocess pressure
l
T
emperature
l
D
i
ff
erence
(
only with measurement loop
3
)
l
I
nterface
l
U
niversal
(
for sensors of other manufacturers
)
T
he third measurement loop is always a di
ff
erential measurement loop
calculating the di
ff
erence of the values of measurement loops
1
and
2
(
optionally measurement loop
1
-
2
or
2
-
1
).
I
nformation
:
K
eep in mind that some settings must be carried out individually
several times
,
because they are speci
fi
cally required for each
measurement loop
.
T
hrough the adjustment the input value of the connected sensor is
converted into a percentage value
.
T
his conversion step allows any
input value range to be depicted in a relative range
(
0
%
up to
100
%
).
M
easurement loop
-
I
n
-
put
M
eas
.
loop
-
P
arameter
M
eas
.
loop
-
A
djustment
VEGAMET
625
•
D
ouble channel
HART
signal conditioning instrument
21
6
S
etup with the integrated indicating and adjustment unit
28970
-
EN
-
110801
