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

Place the required weight on the scale.
5. Press ON/TARE once more. If the display shows
AL F, calibration is complete! AL E means calibration
failure - Repeat steps 1 - 5.
B. TS-100 Calibration
TS-100 - uses a 100g calibration weight
1. Turn OFF the scale.
2. Press and hold the [MODE] key and [POWER/
TARE] key at the same time until the display shows a
random number.
3. Release the [POWER/TARE] key and [MODE] keys.
4. Press the [POWER/TARE] key again. The display
will show AL 0 followed by the required calibration
weight. Place the required weight on the scale.
5. Once the scale is stable, the LCD will display AL F.
Calibration is complete! AL E means calibration failure
(Repeat steps 1 - 5)
VI. TROUBLESHOOTING
The primary reasons for inaccuracy or malfunction
are low batteries, incorrect calibration, overload or
operating on an unstable surface.
[Display] Elimination of errors
[LO-] Replace the batteries.
[O-Ld] You are overloading the scale. Remove the
excessive load immediately!
[AL E] A calibration error has occured.