1. First turn the scale on by pressing the on button, then allow 5 minutes for warm up.
2. Next press the inventory button then the balance button within two seconds.
3. Add a known weight to the scale.
4. Press the clear button and key in the known weight value.
5. Depress the calibration switch located at the bottom of the scale indicator.
6. Press the enter preset button then the load/unload button.
7. Next, using a small flat tipped screwdriver turn the calibration pot. located at the bottom of the scale indicator until the scale display reads zero.
8. Press the calibration switch located at the bottom of the scale indicator one more time.
Note: When these steps have been completed and the weight has been removed, the scale should settle on zero. If the scale does not return to zero, repeat steps 2 through 8 until the scale settles at zero when the calibration procedure is complete.