M503 Series chair Scales Service Manual (3.09)
• Press key to enter calibration, display will show
• Press key, display will show
• Press key to confirm, display will show
• Make the stand pan empty, When scale get stable, Press key,
display will show the calibration value, (You can press
and to change the value) then press to confirm, display
will show
• Place the test weight on the platform, after stable, press key to
confirm, display will show
• Then will start self-test and will come to normal display.