A&D GH Series Span Calibration Guide

Span calibration adjusts the weighing sensitivity of the GH Series using a certified calibration weight.

Procedure

1. Warm up the balance.

2. Empty the weighing pan.

3. Enter calibration mode.

4. Select Span Calibration.

5. Place the requested certified weight on the pan.

6. Wait until calibration completes.

7. Remove the calibration weight.

8. Verify accuracy using a second certified weight.

Recommendations

• Use Class E2 calibration weights.

• Perform span calibration after relocation.

• Avoid vibration during calibration.

• Record calibration results for laboratory quality systems.

Regular span calibration maintains long-term weighing accuracy.