VEGA VEGAPULS 51K…54K Profibus PA - Manual (Page 40)

40 VEGAPULS 51P … 54P
24890-EN-041227
Set-up
Adjustment with medium
Fill the vessel e.g. to 10 % and enter 10 % in
the menu "
Min. adjust“ with the "+“ and "–“
keys. Then fill the vessel, e.g. to 80 % or
100 % and enter 80 % or 100 % in the menu
"
Max. adjust“ with the "+“ and "–“ keys.
percentage value and then the product dis-
tance corresponding to the percentage value.
Note:
The difference between the adjustment val-
ues of the lower product distance and the
upper product distance should be as large
as possible, preferably at 0 % and 100 %. If
the values are very close together, e.g. lower
product distance at 40 % (3.102 m) and
upper product distance at 45 % (3.331 m),
the measurement will be less accurate. A
characteristic curve is generated from the
two points. Even the smallest deviations
between actual product distance and en-
tered product distance will considerably
influence the slope of the characteristic
curve. If the adjustment points are too close
together, small errors inflate to considerably
larger ones when the 0 % or the 100 % value
is outputted.
OK
+ –
or
100.0%
at
m (d)
XX.XXX
The distance indication flashes
and you can choose "feet“ and
"m“.
Confirm the adjustment with
"
OK“.
With " +“ and "–“ you adjust the
percentage value for the min.
value (example 0.0 %).
The entered percentage value
is written in the sensor and the
min. distance value corres-
ponding to that percentage
value flashes.
With the " +“ or "–“ key you can
assign a level distance (ex-
ample 5.85 m) to the previ-
ously adjusted percentage
value. If you do not know the
distance, you have to do a
sounding.
The adjusted product dis-
tance is written in the sensor
and the display stops flash-
ing.
You thereby adjusted the lower product dis-
tance as well as the percentage filling value
corresponding to the lower product distance.
Note:
For level detection outside the operating range,
the operating range must be corrected accord-
ingly in the menu "
Sensor optimisation/Operat-
ing range“.
+
OK
Ad-
just-
ment
in
m(d)
0.0%
at
m (d)
XX.XXX
OK
+ –
or
(max. adjustment)
Now you enter the max. adjustment (upper
product distance) (example 100 % and 1.270
m product distance). First you have to enter the
Signal
condit
ioning
Scal
ing
0 %
corres
ponds
XXXX
100 %
corres
ponds
XXXX
Deci-
mal
point
888.8
prop.
to
Mass
Unit
Kg
with
medium
Min.
adjust
at %
XXX.X
Max.
adjust
at %
XXX.X