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4 Calibration with FOUNDATION
™
Fieldbus Volume 7
4.5 Multi-Point Calibration
Multi-point calibration consists of at least 2 to max. 10 calibration
points. The points are connected by a straight line. This type of cal-
ibration can be performed for every continuous level measurement.
For multi-point calibration various levels have to be controlled.
Figure 4-2 Multi-Point Calibration
Multi-point calibration is carried out in four steps:
• Select type of linearization
• Measure background
• Record calibration points
• Check calibration
The necessary steps will be explained in detail on the following
pages and in the proper order. For more information on the individ-
ual functions please refer to chapter 6.4.
Select Linear as type of linearization for the calibration (see
page 7–677).
Parameters used
LE_LIN_TYPE
LE_NUMBER_OF_CAL_POINTS
LE_READ_IN_DATA
LE_READ_IN_TIMEOUT_ACTUAL
LE_READ_IN_STATUS
LE_READ_IN_SENSOR_VALUE
LE_READ_IN_TIMEOUT
LE_SENSOR_OFFSET
LE_START_STOP_READ_IN
LE_TAB_ENTRY
LE_TAB_OPCODE
LE_TAB_STATUS
LE_TAB_X_Y_VALUE
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