Operating instructions

The “Piece Counting” application
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8.4.4 Reference optimizing
Reference optimizing improves the precision of piece counting results. The average piece weight (reference) is recalculated with each
reference optimization. Because the new pieces that have been placed in the weighing pan increase the basis for the calculation, the
reference, and therefore the result of the piece count, are more exact.
The “Ref.Opt” function key must be activated in order to use reference optimization (sec-
tion 8.3.3).
Determine the reference using the desired method (fixed or variable reference piece number,
see section 8.4.1). A reference piece number of 10 is used in the example opposite.
Note: In this figure, the “Ref.Opt” function key is inactive and cannot be pressed, because
no more pieces were added after the reference was determined.
Proceed with the piece count, and place additional pieces on the weighing pan. To optimize
the reference, press the “Ref.Opt” function key. The number of pieces in the pan is now
used as the new reference piece number and the reference piece weight is recalculated
on this basis.
After reference optimization, the “Ref.Opt” key becomes inactive again until you add more
pieces to the pan. Reference optimization can be carried out any number of times, and
will only improve the precision of the reference and, therefore, the counting result.
Note
– Reference optimization is possible only if:
– the number of pieces placed in the weighing pan is larger than the reference
piece number.
– the number of pieces placed in the weighing pan (19 in this example) is not greater
than twice the most recently saved reference piece number (10 in this example).
– either the “fixed reference piece number” or “variable reference piece number” is
used as the method of determining the reference. Reference optimization is not pos-
sible when a known reference piece weight (“PcsWgt” function key) is entered.
– Reference optimization is possible with a piece counting series only before the result
of the first count is saved using the “M+” function key. The “Ref.Opt” key is then grayed
out and cannot be pressed, since the change in the basis of calculation (reference
piece weight) is not reliable in the middle of a running series.