Level measurement
Cerabar S/Deltabar S/Deltapilot S 4...20mA HART
16
Hauser
!
Note!
1.
You can also perform calibration with reference pressure by means of the QUICK SETUP
menu.
See Page 49 ff, Table 4: QUICK SETUP menu.
2.
For this level mode, the measured variables %, level, volume and mass are available.
See
also parameter description for OUTPUT UNIT, Page 60.
3.
For operation using the on-site display, the parameters EMPTY CALIB. (
Page 61) and FULL
CALIB. (
Page 61) also show the respective pressure present at the device. For operation
using Digital communication, the pressure present at the device is displayed in the PROCESS
VALUES group (menu path: OPERATING MENU
PROCESSINFO
PROCESS VALUES).
5
On-site display:
Select BASIC SETUP function group. Menu path:
GROUP SELECTION
OPERATING MENU
SETTINGS
BASIC SETUP
P01-xxxxxxxx-05-xx-xx-xx-011
P01-xxxxxxxx-05-xx-xx-xx-014
Fig. 4:
Calibration with reference pressure –
wet calibration
1
See Table, Step 9.
2
See Table, Step 10.
3
See Table, Step 11.
4
See Table, Step 12.
6
Select a pressure unit via the PRESS. ENG. UNIT
parameter, here mbar for example.
7
Select a level unit via the OUTPUT UNIT parameter,
here m for example.
8
Select the "Wet" option by means of the CALIBRATION
MODE parameter.
9
Hydrostatic pressure for the lower calibration point is
present at the device, here 0 mbar for example.
Select EMPTY CALIB. parameter.
Enter the level value, here 0 m for example. Confirm the
value to assign the pressure value present to the lower
level value.
!
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.
10
Hydrostatic pressure for the upper calibration point is
present at the device, here 300 mbar (4.5 psi) for
example.
Select FULL CALIB. parameter.
Enter the level value, here 3 m (9.8 ft) for example.
Confirm the value to assign the pressure value present to
the upper level value.
!
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.
11
Set the value for the lower current value (4 mA) by
means of the SET LRV parameter.
12
Set the value for the upper current value (20 mA) by
means of the SET URV parameter.
13
Result:
The measuring range is set for 0 to 3 m (9.8 ft).
Description
3
0
h
[m]
0
300
p
[mbar]
➀
➁
20
4
I
[mA]
0
3
h
[m]
➂
➃