... wait for 3 seconds display 0.0;• 2, put in a tray surface, unstable unit symbol will gleam, when unit stop ... display PASS, and display the current farmar value, and lit a backlight, calibration finished. (for temperature difference is too large, ... are as follows:Boot to 0.0 state, the count a 25, 50, 75 or 100 need to count items ... same item in the ChengPan calculate. digital jewelry mini pocket scale