Endress+Hauser Deltabar FMD72 - Page 55

Deltabar FMD71, FMD72 Commissioning
Endress+Hauser 55
liters corresponds to a level of 0.5 m (1.6 ft) since the device is mounted below the start of
the level measuring range.
Prerequisite:
• The measured variable is in direct proportion to the pressure.
• This is a theoretical calibration i.e. the height and volume values for the lower and upper
calibration point must be known.
• The values entered for "Empty calib./Full calib.", "Empty height/Full height" and "Set
LRV/Set URV" 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 module and the
measuring task for the device to be able to measure correctly.
• Due to the orientation of the device, there may be pressure shifts in the measured value,
i.e. when the vessel is empty or partly filled, the measured value is not zero. For
information on how to perform position adjustment, see →  81.
Description
1 Select the "Level" measuring mode via the
"Measuring mode (005)" parameter.
Menu path: Setup → Measuring mode
A
B
A0017661
A See table, steps 7 and 8.
B See table, steps 9 and 10.
2 Select a pressure engineering unit via the
"Press eng. unit (125)" parameter, here "mbar"
for example.
Menu path: Setup → Press. eng. unit
3 Select the "In height" level mode via the "Level
selection (024)" parameter.
Menu path: Setup → Extended setup → Level →
Level selection
4 Select a volume unit via the "Unit before lin.
(025)" parameter, here "l" (liters) for example.
Menu path: Setup → Extended setup → Level →
Unit before lin.
5 Select a level unit via the "Height unit (026)"
parameter, here "m" for example.
Menu path: Setup → Extended setup → Level →
Height unit