Siemens sitrans LR 400 Instruction Manual page 51

The device then displays Enter table again. Access again to enter a further reference
value. The device automatically offers you the next undefined reference value.
We recommend entering a maximum of two or three reference values for the linear range
of the vessel and to use the others for the non-linear part.
If you enter a second volume value for the same level, the reference value saved earlier is
overwritten.
4.2.5.8.3: Show table
Display table
Value
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
Value
If you choose all in this parameter, the entire saved table is deleted. You can delete
individual reference values with the selection 1st, 2nd etc. that were displayed in
Parameter 4.2.5.8.3.
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.
or
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:
7ML19985FH03
selection
selection
SITRANS LR 400 – INSTRUCTION MANUAL Page 47