Endress+Hauser Deltapilot M FMB50 - Page 84

Commissioning Cerabar M, Deltabar M, Deltapilot M / 4...20 mA HART
84 Endress+Hauser
6.11.4 Level selection "in pressure"
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" must be at least 1% apart.
The value will be rejected, and a message output, if the values are too close together. Other limit
values are not checked, i.e. the values entered must be appropriate for the sensor and the measuring
task for the device to be able to measure correctly.
Description
1 Perform "position zero adjustment"  ä 56.
2 Select the "Level" measuring mode via the "Measuring
mode (005)" parameter ( ä 55).
Menu path: Setup Measuring mode
3 Select a pressure unit via the "Press eng. unit" parameter
( ä 79), here "mbar" for example.
Menu path: Setup  Press. eng. unit
4 Select the "In pressure" level mode via the "Level
selection" parameter ( ä 114).
Menu path: Setup Extended setup  Level 
Level selection
5 Select a level unit via the "Output unit" parameter
( ä 114), here "m" for example.
Menu path: Setup  Extended setup  Level 
Output unit
6 Select the "Wet" option via the "Calibration mode"
parameter ( ä 114).
Menu path: Setup  Extended setup  Level 
Calibration mode