American Weigh Scales BT2-500 - Manual (Page 4)

“CAL”.
3. Press the [ M ] key again, and the display will show
the required calibration weight (ie 500g or 200g). If you
wish to use a 100g calibration weight instead, press
the T key. The display will change to show 100g.
4. Place the calibration weight on the center of the
platform and wait for the display to show “PASS”.
5. The scale will return to normal weighing mode.
Calibration is complete!
IV. TROUBLESHOOTING
The primary reasons for inaccuracy or malfunction
are low batteries, incorrect calibration, overload or
operating on an unstable surface. Please keep this in
mind and maintain and operate your scale properly.
This scale is a precise instrument and must be
handled with the utmost care and caution.
[Display] Elimination of errors
[88888] Use the scale in a more stable position.
[EEEE] You are overloading the scale. Remove the
excess again after recalibration.
[Out2] The scale is out of calibration. Try
recalibrating (see section III)