Cerabar S/Deltabar S/Deltapilot S 4...20mA HART
Level measurement
Hauser
21
!
Note!
1.
For this level mode, the measured variables %, level, volume and mass are available.
See
also parameter description for OUTPUT UNIT, Page 64.
6
Select a pressure unit via the PRESS. ENG. UNIT
parameter, here mbar for example.
P01-xxxxxxxx-05-xx-xx-xx-029
P01-xxxxxxxx-05-xx-xx-xx-030
P01-xxxxxxxx-05-xx-xx-xx-031
Fig. 8:
Calibration with reference pressure –
wet calibration
1
See Table, Steps 10 and 11.
2
See Table, Step 12.
3
See Table, Step 13.
4
See Table, Step 14.
5
See Table, Step 15.
7
Select a volume unit via the OUTPUT UNIT parameter,
here l (litres) for example..
8
Select a height unit via the HEIGHT UNIT parameter,
here m for example.
9
Select the "Wet" option via the CALIBRATION MODE
parameter.
10
Select a density unit via the DENSITY UNIT parameter,
here kg/dm
3
for example.
11
Enter the density of the fluid using the ADJUST
DENSITY parameter, here kg/dm
3
for example.
12
Enter the volume value for the lower calibration point
via the EMPTY CALIB. parameter, here 0 l for example.
(The currently measured hydrostatic pressure is
displayed as height, here 0.5 m (1.6 ft) for example.)
!
Note!
To accept the value displayed you must first switch to
the Edit mode (see the "Editing values" section) and then
press the "E" button to save the value.
13
Enter the volume value for the upper calibration point
via the FULL CALIB. parameter, here 1000 l (264 US
gal) for example. (The currently measured hydrostatic
pressure is displayed as height, here 4.5 m (15 ft) for
example.)
!
Note!
To accept the value displayed you must first switch to
the Edit mode (see the "Editing values" section) and then
press the "E" button to save the value.
14
Set the value for the lower current value (4 mA) by
means of the SET LRV parameter.
15
Set the value for the upper current value (20 mA) by
means of the SET URV parameter.
16
Result:
The measuring range is set for 0 to 1000 l (264 US gal).
Description
4.5
0.5
h
[m]
49
441
p
[mbar]
h =
p
r
· g
r
= 1
g
cm
3
➀
1000
0
V
[l]
0.5
4.5
➁
➂
h =
p
ρ
· g
h
[m]
20
4
I
[mA]
0
1000
V
[l]
➃
➄