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6.3. Counting Mode (PCS)
This is the mode to determine the number of objects in a sample based on the standard
sample unit mass. The unit mass means an average mass of the samples. The smaller the
variation in the samples, the more accurate the count will be. The balance is equipped with the
Automatic Counting Accuracy Improvement (ACAI) function to improve the counting accuracy.
Notes
Use samples with a unit mass of 1 mg or more for counting.
If the sample unit mass variable is too large, it may cause a counting error.
To improve the counting performance, use the ACAI function frequently or divide the
samples into several groups and count each group.
Selecting the counting mode
1 Press the MODE key to select the unit pcs (counting mode).
Storing a sample unit mass (Weighing input mode)
2 Press the RANGE key to enter the sample unit mass storing mode.
3 To select the number of samples using the RANGE key.
It may be set to 10, 25, 50 or 100.
Advise
A greater number of samples will yield more
accurate counting result.
4 Place a container on the weighing pan, if nec essary.
Press the RE-ZERO key to cancel the weight (tare). The
number specified in step 3 appears.
Example
: 25 0 pcs is displayed if 25 is selected in step 3.
5 Place the number of samples specified on the pan.
In this example, 25 pieces.
6 Wait for the stabilization indicator to be displayed.
Press the
PRINT key to calculate and store the unit
mass. Then the balance displays 25 pcs and is set to
count samples with this unit mass. (The sample unit
mass is stored in non-volatile memory, and is maintained
even if the AC adapter is removed.) To improve the
accuracy of the unit mass, proceed to step 8.
Notes
If the balance judges that the mass of the samples is too
light (
under 0.0001g
) and can not be stored as the unit mass,
it displays lo .
If the balance judges that the mass of the samples is too light
to acquire accurate weighing, it displays an error requiring
the addition of more samples to the specified number.
Example:
150 - pcs appears, requiring 25 more samples. Add
25 samples and press the PRINT key. When the unit mass is
stored correctly, the balance proceedes to the counting mode.
Counting operation
7 Place the samples to be counted on the pan.
Weighing pan
Containe
r
25 Samples
Place samples
Counting resul
t