Endress+Hauser cerabar S - Height Linearized Level Type

Level measurement (FF configuration program) Cerabar S/Deltabar S
14 Endress+Hauser
4. 4 "Height linearized" level type
4.4.1
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 33, Pressure Transducer Block.
– Page 65, Analog Input Block.
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
BA301P, Section 6.6.1
P01-PMP75xxx-19-xx-xx-xx-006
Fig. 4: Calibrating the 1st measured variable
1 See Table, Step 10.
2 See Table, Step 11.
2 Open the Pressure Transducer Block and set the block
mode to OOS.
3 You have the following ways of carrying out position
adjustment:
• By means of the "Pos. zero adjust" method, see
Operating Instructions BA301P or BA302P,
Section 6.4.
• By means of the parameters
– PRESSURE_1_ACCEPT_ZERO_INSTALL_
OFFSET/POS. ZERO ADJUST (→ Page 38) or
– PRESSURE_1_ACCEPT_INSTALL_OFFSET/
POS. INPUT VALUE (→ Page 38) or
– PRESSURE_1_INSTALL_OFFSET/CALIB. OFFSET
(→ Page 38).
Perform calibration for the 1st measured variable:
4 Select the measuring mode if necessary:
• Select the "Level combined" option by means of the
LINEARIZATION parameter.
• Select the "Volume" option by means of the
PRIMARY_VALUE_TYPE parameter.
5 Select a pressure unit via the CAL_UNIT parameter, here
mbar for example.
6 Select the "Height linearised" option by means of the
LEVEL_TYPE/LEVEL MODE parameter.
7 Select the "Height + volume" option by means of the
MEASURAND_COMBINED/COM. MEASURAND
parameter.
8 Select the unit for the 1st measured value via the
HEIGHT UNIT parameter, here m for example.
9 Select the unit for the 2nd measured variable via the
VOLUME_UNIT/UNIT VOLUME parameter, here m
3
for example.
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