Endress+Hauser cerabar S - Page 87

Cerabar S/Deltabar S Level measurement (ToF Tool)
Endress+Hauser 87
8.4.2 Dry calibration and manual entry of the linearisation table
Example:
In this example, the height and the volume should be measured at the same time.
Prerequisite:
• This is a theoretical calibration, i.e. the points for the linearisation table are known.
!
Note!
• See also Operating Instructions BA301P Deltabar S or Operating Instructions BA302P Cerabar S,
Section 6.6 "Level measurement".
• For a description of the parameters mentioned, see
– Page 98, ToF Tool, table 4: POSITION ADJUSTMENT
– Page 101, ToF Tool, table 6: BASIC SETUP
– Page 117, ToF Tool, table 9: BASIC SETUP – "Height linearized" level type
– Page 132, ToF Tool, table 14: LINEARISATION
• For a description of further parameters, see
– Page 129, ToF Tool, table 12: EXTENDED SETUP
– Page 143, ToF Tool, table 22: PROCESS VALUES.
Description
Perform calibration for the 1st measured variable:
P01-PMP75xxx-19-xx-xx-xx-005
1 Perform calibration as per Section 8.4.1, steps 1 to 10.
2 Select the "Dry" option via the CALIBRATION MODE
parameter (calibration mode for the 1st measured
variable).
3 Enter the density of the fluid via the ADJUST DENSITY
parameter, here 1 kg/dm
3
for example.
4 If necessary, enter a level offset via the ZERO POSITION
parameter, here 0 m for example.
5Result:
The calibration for the 1st measured variable is carried
out.
Perform linearisation (calibration for the 2nd
measured variable)
6 Change the function group.
Menu path: OPERATING MENU → SETTINGS →
LINEARISATION
7 Select TANK CONTENT MIN parameter.
Specify the minimum tank contents to be expected, here
0 m
3
for example.
8 Select TANK CONTENT MAX parameter.
Specify the maximum tank contents to be expected, here
5 m
3
for example.
9 Select the "Editor table" option by means of the TABLE
SELECTION parameter.
10 Select the "Manual" option by means of the LIN. EDIT
MODE parameter.
5
0
03
V
[m ]
3
h
[m]