Level measurement (via local operation and FieldCare) Cerabar S/Deltabar S/Deltapilot S FOUNDATION Fieldbus
120 Endress+Hauser
!
Note!
1. For this level mode, the measured variables %, volume and mass are available. → ä 166 ff.
2. You can also specify customer-specific units. See parameter descriptions for PRESS. ENG.
UNIT (060) (→ ä 155), HEIGHT UNIT (708) (→ ä 163), UNIT VOLUME (313) (→ ä 166)
and MASS UNIT (709) (→ ä 167).
3. Once you have selected the "Pressure linearized" level mode, the warning message "W710 Set
span too small. Not allowed." can appear. At this stage, the linearization table already consists
of two points as standard. It could be the case that the 2nd value, and thus the highest X-VAL.
of the linearization table, is smaller than the minimum span permitted (→ MINIMUM SPAN
(591), → ä 198). The message disappears as soon as the highest X-VALUE is greater than the
minimum span and the table entered is active.
4. Once you have entered the maximum tank contents to be expected for TANK CONTENT
MAX., the alarm "A719 Y-Val of lin. table out of edit limits" can appear. At this stage, the
linearization table already consists of two points as standard. It could be the case that the 2nd
value, and thus the highest Y-VALUE of the linearization table, is greater than the value
entered for TANK CONTENT MAX. The message disappears as soon as no Y-VALUE is greater
than the value for TANK CONTENT MAX. and the table entered is active.
Description
19 Local operation:
If you want to enter another point for the linearization
table, select the "Next point" option and enter the point
as described in Step 18.
If you want to finish entering the values and activate the
linearization table, select the "Accept input table" option.
FieldCare:
You can enter further points for the linearization table as
explained in Step 18. Once all the points have been
entered, the table must be activated by means of the
TAB. ACTIVATE parameter.
20 Where necessary scale the OUT value of the Analog
Input Block, see Page 93 parameter descriptions. For this
purpose, equate XD SCALE and OUT SCALE or the OUT
value with the measured value.
21 Result:
The linearization table has been entered and the device
is ready for level measurement.
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