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Counting mode (pcs), Selecting the counting mode, Storing a sample unit mass (weighing input mode) – A&D Weighing HR-202i User Manual

Page 18: Counting operation

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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 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 necessary.

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 0.1 mg) 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:

1

50 - pcs

appears, requiring 25 more samples. Add

25 samples and press the

PRINT

key. When the unit mass is

stored correctly, the balance proceeds to the counting mode.

Counting operation

7 Place the samples to be counted on the pan.

Weighing pan

25 samples

Place samples

Counting result

Container

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