A&D GP-100K User Manual

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 18
5-2  Counting Mode (PCS) 
This is the mode to determine the number of objects in a sample based on the standard sample unit 
mass. Unit mass means the mass of one sample. The smaller the variables in each sample unit 
mass is, the more accurate the counting will be. The GP series balance is equipped with the 
Automatic Counting Accuracy Improvement (ACAI) function to improve the counting accuracy. 
Note 
If the sample unit mass variable, the difference from sample to sample, is too large, it may 
cause a counting error. 
 
Selecting the counting mode 
1  Press the MODE key to select pcs (counting mode).   
 
Storing a sample unit mass (Weighing input mode) 
2  Press the SAMPLE key to enter the sample unit mass 
storing mode. 
3  To select the number of samples, press the SAMPLE key 
several times. It may be set to 10, 25, 50 or 100. 
Note 
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. 
 e.g.: 
 
 
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 come on. Press the 
PRINT key to calculate and store the unit mass. The 
balance displays   25
 pcs
   (counting mode) and is set to 
count samples with this unit mass. (The sample unit mass 
stored, even if the AC adapter is removed, is maintained 
in non-volatile memory.) 
  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 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 aquire accurate weighing, it 
displays an error requiring the addition of more samples to the specified number. In the 
example above, 
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. 
Key entry of the unit mass value (digital input mode) is possible. For details, refer to “11-4 
Memory for Unit Mass in the Counting Mode”