Cerabar S/Deltabar S/Deltapilot S 4...20mA HART
Level measurement
Hauser
25
!
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.
You can also specify customer-specific units. See parameter description for PRESS. ENG. UNIT
(
Page 70), UNIT VOLUME (
Page 71) and MASS UNIT
(
Page 72).
3.
For this level type, the measured variables %, level, volume and mass are available.
See Page 70 ff.
4.
The EMPTY PRESSURE (
Page 74) and FULL PRESSURE (
Page 74) parameters display
the pressure values belonging to the EMPTY CALIB. and FULL CALIB. parameters.
5
On-site display:
Select BASIC SETUP function group. Menu path:
GROUP SELECTION
OPERATING MENU
SETTINGS
BASIC SETUP
P01-xxxxxxxx-05-xx-xx-xx-034
P01-xxxxxxxx-05-xx-xx-xx-014
Fig. 12:
Calibration with reference pressure –
wet calibration
1
See table, step 11.
2
See table, step 12.
3
See table, step 13.
4
See table, step 14.
6
Select a pressure unit via the PRESS. ENG. UNIT
parameter, here mbar for example.
7
Select the "Linear" option by means of the LEVEL MODE
parameter.
8
Select the "Level" option by means of the LIN.
MEASURAND parameter.
9
Select a level unit via the HEIGHT UNIT parameter, here
m for example.
10
Select the "Wet" option by means of the CALIBRATION
MODE parameter.
11
The 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.
12
The pressure for the upper calibration point is present at
the device, here 450 mbar (6.75 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.
13
Set the value for the lower current value (4 mA) by
means of the SET LRV parameter.
14
Set the value for the upper current value (20 mA) by
means of the SET URV parameter.
15
Result:
The measuring range is set for 0...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