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Quantum Scale System
5 - 9 Entering PLU Information
Random Weight PLU’s
with Proportional Tare
Some items require two tare values - Fixed Tare and
Proportional Tare. Fixed Tare is the weight of the packing
material for which the customer does not pay. Typically,
this is a tray or sack. On the other hand, Proportional Tare
is the percentage of the total product weight that is the
“wrapper” for the individual item. This value represents
the proportion of tare material in comparison with the gross
weight of the item (commodity).
A good example of an item that uses this tare configuration
would be individually wrapped candy. If the Proportional
Tare value for a specific individually wrapped type of candy
is 14%, it means that for a gross weight of 1 pound, the total
weight of individual wrappers is .14 pounds.
On the screen, you will notice these values represented as
Tare and Total Tare. When you place the item on the scale
for weighing, the Total Tare value changes to reflect the
calculation of Proportional Tare. The Total Tare value is the
sum of the Fixed Tare and Proportional Tare values.
☛ Note
For a more detailed explanation of Proportional Tare
(Percentage Tare), refer to the Appendix.