Cerabar S/Deltabar S/Deltapilot S 4...20mA HART
Level measurement
Hauser
19
5.3
"Level Easy Height" level selection
5.3.1
Calibration with reference pressure – wet calibration
Example:
In this example, the volume in a tank should be measured in litres. The maximum volume of 1000
litres (264 US gal) corresponds to a level of 4.5 m (15 ft). The minimum volume of 0 litres
corresponds to a level of 0.5 m (1.6 ft), as the device is mounted below the level lower range value.
The density of the medium is 1 kg/dm
3
.
Prerequisite:
• The measured variable is in direct proportion to the pressure.
• The tank can be filled or emptied.
!
Note!
• See also Operating Instructions for Deltabar S (BA00270P) or Cerabar S (BA00271P), Section 6.5
"Level measurement" or Deltapilot S (BA00332P), Section 6.4 "Level measurement".
• The values entered for EMPTY CALIB./FULL CALIB., EMPTY PRESSURE/FULL PRESSURE,
EMPTY HEIGHT/FULL HEIGHT and SET LRV/SET URV must have a minimum interval of 1%
for the "Level Easy Height" level mode. The value will be rejected with a warning message 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.
• For a description of the parameters mentioned, see
– Page 45, Table 2: MEASURING MODE
– Page 53, Table 6: POSITION ADJUSTMENT
– Page 62, Table 9: LEVEL SELECTION "Level Easy Height"
• For a description of further relevant parameters, see
– Page 96, Table 16: EXTENDED SETUP
– Page 122, Table 28: PROCESS VALUES.
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Warning!
If the measuring mode is changed, the span setting (URV) must be verified in the "Calibration"
"Basic Setup" operating menu and, if necessary, reconfigured.