How to use a weighing scale to count1. Power on the switch2. Press [FUNCTION] key for twice, display shows as below picture. SAP-20 means the sample is 20pcs.3. Press [SAMPLE] key to modify the sample quantity.4. For example, here we need to count the quantity of business card. Choose SAP-20, and press [TARE], Display shows "LoAd-C" as below.5. Now we need to put on 20pcs business card and press [TARE]. Display shows the quantity of the sample.6. Now put on business cards we need to count. It will count the quantity automatically.