QTECH QCS 65 - Manual (Page 3)

Sampling is the process of “teaching” your scale to calculate a unit weight or “weight per 1000”
pieces. Once the scale knows the unit weight, it can quickly provide a count by dividing the
weight on the scale by the unit weight.
This is the most critical step in the entire counting process. The golden rule of sampling is this:
the larger the initial sample size, the more accurate your counts will be. There is a point,
however, at which an increased sample size will provide little or no additional accuracy. We
suggest you use the sampling sizes listed in the table below as a starting point. You may then
experiment with these values to find a reasonable tradeoff between the time spent sampling and
the resulting accuracy.
Turn the scale on by pressing the ON/OFF rocker switch on the left side of the scale. All the
display windows will temporarily show a series of alphanumeric digits. After about five seconds
the WEIGHT, UNIT WEIGHT, and QUANTITY windows will each display “0”. The scale is now
ready for use.
Select from the following sampling procedures depending on the item you wish to count and the
QCS model/weight capacity:
Sheet Size QCS-6 and QCS-15 Sampling Procedure
11 x 17” Put 10 sheets on the scale, key in "10" and then
press the SMPL key within 5 seconds.
8-1/2 x 11” Put 20 sheets on the scale, key in "20" and then
press the SMPL key within 5 seconds.
5-1/2 x 8-1/2” Put 30 sheets on the scale, key in "30" and then
press the SMPL key within 5 seconds.
2 x 3-1/2” or Smaller Sheets Put 40 sheets on the scale, key in "40" and then
press the SMPL key within 5 seconds.
NOTE: If you will be counting fewer than 1000 sheets you may halve these sampling
quantities. Never use fewer than 10 sheets, however, as a sample size.
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Sheet Size QCS-30 and QCS-65 Sampling Procedure
11 x 17” Put 10 sheets on the scale, key in "10" and then
press the SMPL key within 5 seconds.
8-1/2 x 11” Put 40 sheets on the scale, key in "40" and then
press the SMPL key within 5 seconds.
5-1/2 x 8-1/2” Put 50 sheets on the scale, key in "50" and then
press the SMPL key within 5 seconds.
2 x 3-1/2” or Smaller Sheets Put 60 sheets on the scale, key in "60" and then
press the SMPL key within 5 seconds.
PAPER SAMPLING:
Select Appropriate Table Based on QCS Model