User's Manual

7ML19985FH01 SITRANS LR 400 – INSTRUCTION MANUAL DRAFT Page 41
mmmmm
Parameters (HART)
4.2.5.4: MinLim Volume (F = 0 m
3
)
Lower limit value of the volume
4.2.5.5: MaxLim Volume (F = 0 m
3
)
Upper limit value of the volume
4.2.5.6: HYST Volume (F = 0.5 m
3
)
Hysteresis of the volume limit values
4.2.5.7: Tank Characteristic (F = Calibrate/table)
Determining the vessel characteristic
Select the option “Calculate” or “Calibrate/Table” as required. The selection controls the
display of Parameter 4.2.5.8.
The possibilities of each parameter are listed below. For the values associated with
Parameter 4.2.5.8: Calculate, go to page 43.
4.2.5.8: Calibrate/table
If your vessel deviates from the forms offered, the necessary data is not available or is
unknown or you need a vessel characteristic with greater accuracy you must calibrate it
by liters. You can enter reference values from a table provided by the vessel
manufacturer or do the calibration manually and enter the determined reference values.
You can only enter pairs of values consisting of level and volume.
Value
numerical value
Value
numerical value
Value
numerical value
Value
Calibrate/table
Calculate
Note: Entering the vessel characteristic with the operation and monitoring module
can be a time-consuming procedure. It can be done more quickly and comfortably
with the SIMATIC PDM software. There, an entered table can be edited simply – an
option which is only conditionally possible with the operating and monitoring module.
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