Level measurement
Cerabar S/Deltabar S/Deltapilot S 4...20mA HART
24
Hauser
5.4
"Level Standard" level selection,
"Linear" level type
5.4.1
Calibration with reference pressure – wet calibration
Example:
In this example, the level in a tank should be measured in m. The maximum level is 3 m (9.8 ft).
The pressure range is set to 0 to 300 mbar (4.5 psi).
Prerequisite:
• The measured variable is in direct proportion to the pressure.
• The tank can be filled or emptied.
!
Note!
• See also Operating Instructions for Deltabar S (BA00270P) or Cerabar S (BA00271P), Section 6.5
"Level measurement" or Deltapilot S (BA00332P), Section 6.4 "Level measurement".
• For a description of the parameters mentioned, see
– Page 45, Table 2: MEASURING MODE
– Page 53, Table 6: POSITION ADJUSTMENT
– Page 67, Table 10: BASIC SETUP
– Page 70, Table 11: BASIC SETUP – "Linear" level type.
• For a description of further relevant parameters, see
– Page 96, Table 16: EXTENDED SETUP
– Page 122, Table 28: PROCESS VALUES.
#
Warning!
If the measuring mode is changed, the span setting (URV) must be verified in the "Calibration"
"Basic Setup" operating menu and, if necessary, reconfigured.
Description
1
Deltabar S: before configuring the device for your
application, the pressure piping must be cleaned and the
device filled with fluid. See Operating Instructions
BA00270P, Section 6.5.1
P01-PMC71xxx-19-xx-xx-xx-006
Fig. 11:
Calibration with reference pressure –
wet calibration
1
See table, step 11.
2
See table, step 12.
2
Carry out position adjustment if necessary. See Page 53,
Table 6: POSITION ADJUSTMENT.
3
If necessary, select the "Level" measuring mode via the
MEASURING MODE parameter.
On-site display:
Menu path: GROUP SELECTION
MEASURING
MODE
Digital communication:
Menu path: OPERATING MENU
SETTINGS
BASIC SETUP
MEASURING MODE
4
If necessary, select "Level Standard" level mode using the
LEVEL SELECTION parameter.
On-site display:
Menu path: GROUP SELECTION
MEASURING
MODE "Level"
LEVEL SELECTION
Digital communication:
Menu path: OPERATING MENU
SETTINGS
BASIC SETUP
MEASURING MODE "Level"
LEVEL SELECTION
450 mbar
0.5 m
3 m
50 mbar
ρ
= 1
kg
dm
3
1
2