Commissioning Cerabar M, Deltabar M, Deltapilot M / 4...20 mA HART
58 Endress+Hauser
6.5.3 "In pressure" level selection
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 and emptied.
!
Note!
The values entered for "Empty calib./Full calib." and" Set LRV/Set URV" and the pressures present
at the device must be at least 1% apart. The value will be rejected, and a warning message displayed,
if the values are too close together. Further limit values are not checked, i.e. the values entered must
be appropriate for the sensor and the measuring task for the measuring device to be able to measure
correctly.
Description
1 Perform "position adjustment". ä 56
P01-Mxxxxxxx-19-xx-xx-xx-003
Fig. 27: Calibration with reference pressure –
wet calibration
1 See Table, Step 8.
2 See Table, Step 9.
2 Select the "Level" measuring mode via the "Measuring
mode (005)" parameter.
Menu path: Setup Measuring mode
3 Select the "In pressure" level mode via the "Level
selection" parameter.
Menu path: Setup Extended setup Level Level
selection.
4 Select a pressure unit via the "Press eng. unit" parameter,
here "mbar" for example.
Menu path: Setup Press. eng. unit
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