5.2.2 Accuracy inspection before use. (1) press Tare the scale and stability of value 0.(2) If a fixed value of 0 to the following scales.(3) if the value 0 is not fixed (to swing up and down). Verify the unusual environment that may result in a value, such as swing, wind. Vibrations, etc. If you find that the environment is not unusual for a label, status check, and then follow the steps to work that is verified.
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