The calibration method of Dahongying HY-61 electronic scale is as follows:

1. The arrangement of keys of the counting scale is generally as shown in the figure, including quantity setting and single weight setting. Press and hold the decimal point key for a few seconds, and then release it after "CEntr" appears.

2、? Then press the "8" key, because the maximum weight of this scale in my hand is 7.5kg, so there will be a CAP in the weight column and 75, in the single weight column. You can ignore this step and press the "Accumulate" key to enter the next step.

3. The next step is perception. Weight column display: d1, single column display: 2. On behalf of me, the accuracy of this scale is .2g Then press the "Accumulate" key to enter the next step.

4. At this time, the decimal places are displayed, and the default factory value is fine, so you can ignore the operation. Press the "Accumulate" key to enter the next step.

5. At this time, the weight value will appear, and this step is more important. Enter the weight of as many weights as you have in your hand, and remember to reserve decimal places.

6. at this time, the weight column will appear: LCP, and the single column will appear: OFF. If the single column appears: ON, you need to press the "zero" key, and then press the "OFF" key to enter the next step.

7、? The weight column appears: CAL, the single column appears: , and the weight value appears in the total column. Prepare the weights, and then press the "Accumulate" button to enter the next step.

8, put the weight, wait for a few seconds and the electronic scale will automatically correct. When the weight of the weight bar jumps, it means that the correction is completed.

Extended information:

The electronic scale is a measuring instrument that is subject to compulsory verification by the state. Its qualified products have the standards of verification division value E and subdivision value D, and are protected by the national metrology law.

according to the requirements of the national metrology law of the people's Republic of China and the catalogue of working measuring instruments subject to compulsory verification of the people's Republic of China, all electronic scales used as social public measurement standards, electronic scales used by departments, enterprises and institutions as the highest measurement standards, and electronic scales used for trade settlement, safety protection, medical and health care and environmental monitoring can only be used after measurement verification. Those who fail to apply for metrological verification in accordance with the regulations or fail to pass the verification shall not be used.

electronic scales are classified according to accuracy:

Class I: special balance accuracy ≥ 1/1, benchmark scales

Class p>II: high-precision balance accuracy ≤ 1/1, <: 1/1, precision weighing instrument

Class p>III: 1/1 precision balance ≤ precision <; 1/1, industrial and commercial scales

Class p>IV: 1/1 of ordinary scales ≤ Precision <; 1/1 coarse weighing instrument

Reference: Baidu Encyclopedia-Electronic Scale