Cerabar M, Deltabar M, Deltapilot M Commissioning with an operating menu (onsite display/FieldCare)
Endress+Hauser 75
8.4.3 "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 due to the filling height and the density.
Prerequisite:
• The measured variable is in direct proportion to the pressure.
• The tank can be filled and emptied.
The values entered for "Empty calib. (028)/Full calib. (031)" 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 so that the
measuring device can measure correctly.
Description
1 Perform "position adjustment" ä 73.
A0030028
Fig. 28: Calibration with reference pressure –
wet calibration
A See Table, Step 7.
B See Table, Step 8.
2 Select the "Level" measuring mode via the
"Measuring mode (005)" parameter.
Menu path: Setup Measuring mode (005)
3 Select a pressure unit by means of the "Press. eng.
unit (125)" parameter, here "mbar" for example.
Menu path: Setup Press. eng. unit (125)
4 Select the "In pressure" level mode by means of the
"Level selection (024)" parameter.
Menu path: Setup Extended Setup Level
Level selection (024)
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