M503 Series chair Scales Service Manual (3.09)
6.6 BMI function
Press key on the weighing mode, display will show the last height “xxxxxx”,
use or key shift the twinkling digit, and press and key to
change the value, press key confirm it, display will enter into the BMI mode,
“BMI” indicator will be shown, people stand on the platform, display will show the
BMI value and the bar graph.
Press key will turn back to weighing mode.
6.7 Precision*10
If want to see more accurate weight value, press and hold for 2 seconds,
display will show one more decimal place, the last digit will twink for 5 seconds,
then it will go back to normal weighing value automatically.