Cerabar M, Deltabar M, Deltapilot M Commissioning with the FF configuration program
Endress+Hauser 147
9.7.3 "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.
The pressure range is set to 0 to 300 mbar.
Prerequisite:
• The measured variable is in direct proportion to the pressure.
• The tank can be filled and emptied.
Note Dependencies when setting parameters!
‣ The values entered for Empty calibration/LOW_LEVEL_EASY and Full calib./
HIGH_LEVEL_EASY must be at least 1% apart for the "Level easy pressure" level mode.
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.
‣ Due to the orientation of the device, there may be a shift in the measured value, i.e. when
the container is empty, the Primary Value/PRIMARY_VALUE does not display zero.
For information on how to perform position adjustment, see also ä 144,
"Pos. zero adjust/PRESSURE_1_ACCEPT_ZERO_INSTALL".
Description
1 Deltabar M: Before configuring the device for your
application, the pressure piping must be cleaned and
filled with medium.
A0030028
Fig. 40: Calibration with reference pressure –
wet calibration
A See Table, Step 7.
B See Table, Step 9.
2 Open the Pressure Transducer Block and set the
block
mode to OOS.
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