Rice Lake QB Series, Operation Manual

Page: 17 / 32

Weighing Operations 13
NOTES:
• It is possible to use a sample that is too light for the balance to accurately calculate an average
piece weight. If you notice that the display momentarily shows ADD followed by a display that
includes an illuminated UNDER annunciator, you have attempted to use a sample that is too light for
the device to accurately calculate an average piece weight. Continue adding additional samples and
pressing the F key until the UNDER annunciator goes out or simply return to step 4 and utilize a
larger sample.You can abort a sample evaluation at any time by pressing and releasing the P key
once. The display momentarily displays STOP followed by a counting value display.
• The minimum average piece weight must be ≥ the minimum increment (readability) of the balance
being used. If you notice that the display momentarily shows L-Err, the commodity in question can
not be counted with this balance.
9. The display then resumes flashing. To begin counting based on the current average piece weight
calculation, press and release the
P
key once. The display stops flashing and the
M
indicator disappears.
The balance shows the current quantity of the commodity on the weighing platform. Proceed to
Section 2.9.4 on page 13.
10. To utilize the QB’s exclusive APWR (Automatic Piece Weight Refinement) program, continue with
Section 2.9.3 on page 13 (recommended).
2.9.3 Using the APWR (Automatic Piece Weight Refinement) Program
The APWR program is an exclusive feature of the QB Series. When utilized, its unique capabilities refine the
average piece weight as often as desired to take into consideration the largest sample possible. As the average
piece weight of a commodity is refined, the overall counting results are dramatically improved. Within the net
weighing range of the balance, there is no limit as to how many samples are used.
1. Complete steps 1 – 8 in Section 2.9.2 on page 12.
2. With the display flashing the sample count,
M
indicator and
P
indicator, add any number of additional
samples to those already being weighed.
3. Press and release the
F
key once. The display momentarily blanks, except for the flashing
M
indicator
which confirms that the balance is calculating and updating the previously memorized average piece
weight. Repeat steps 2 and 3 as many times as desired.
4. When you are ready to exit the APWR, press and release the
P
key once. The display stops flashing the
the
M
indicator disappears.
2.9.4 Using the Counting Mode
Use the following steps to perform piece count operations on the QB Series balance.
1. Complete the steps in Section 2.9.1 – 2.9.3 as appropriate.
2. Remove the test sample from the platform.
3. If the balance does not show a
0
value, press and release the
T
key. The balance returns to a
0
value.
4. If applicable, place an empty container on the platform and press the
T
key. The balance returns to a
0
reading (see Section 2.4 on page 7).
5. Gently place the items to be counted on the weighing platform or in the empty container as appropriate.
6. The
P
annunciator begins to flash as the display updates. When the
P
annunciator stops flashing, you can
read the quantity of commodity being evaluated.
2.9.5 Deactivating the Counting Mode
Use the following steps to deactivate the count mode of the QB Series balance.
1. Press and hold the
F
key until the word
Func
is displayed (
U SET
appears first, followed by
Func
).
2. Release the
F
key. The display changes to show
1.SET.2
.
3. Press and release the
T
key once to change the value to
1.SET.1
. This deactivates the counting mode.
4. Press and release the
P
key once. The display advances to the weighing mode with a
0.00
value.
5. Even though the counting mode has been deactivated, the most recently used average piece weight
remains in memory and is recalled when the counting mode is reactivated.