User's Manual

7ML19985FH01 SITRANS LR 400 – INSTRUCTION MANUAL DRAFT Page 43

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Parameters (HART)

4.2.5.8.3: Show table

Display table

Here you can display the entered reference values sorted on levels. In the second line,

the level corresponding to the first reference value appears first and then the

corresponding volume value when you switch further. Each switching accesses a further

reference value.

4.2.5.8.4: Clear table

Delete table

If you access the “all” selection in this parameter, the entire saved table is deleted. You

can delete individual reference values with the selection “1st”, “2nd” etc. which were

displayed in parameter 4.2.5.8.3.

4.2.5.8: Calculate

Automatic calculation of a vessel characteristic is faster than manual entry by calibrating

or a table. However, the calculated vessel characteristic is not as accurate as a manually

calibrated characteristic – especially in the non-linear areas of the vessel in which errors

of ≤ 1 % may occur. As well, the necessary data which you can get from the design

documents of your vessel must still correspond to the real conditions.

The 4.2.5.8: Calculate parameter requires the following parameters:

4.2.5.8.1: Tank Design (F = Vertical Cylinder)

Value

selection

Value

selection

Value

Linear

Vertical cylinder

Horizontal cylinder

sphere

Note: The reference values are sorted in order of filling states and do not necessarily

correspond to the order of the value pairs you have entered.

chap6.fm Page 43 Tuesday, October 9, 2001 2:26 PM