American Weigh Scales (AWS) AMW PS-25 - Manual (Page 5)

to changes in local acceleration of gravity around the world,
adjustment is recommended when moving the scale from one
location to another. To check calibration:
1. Place the required calibration weight on the scale and note the
displayed value.
2. If the displayed value is not within acceptable tolerance (see
chart below), adjustment is required.
Model Acceptable
Tolerance (±)
Calibration
Weight
Recommended
Accuracy Class
PS-25 4g 10kg OIML M2
VIII. Adjustment
1. Press and hold the MODE key until the display shows “CAL”.
2. Press the MODE key again. The display will flash “CAL”
followed by the calibration weight value (see chart).
3. Place the required calibration weight on the center of the
platform.
4. The display will show “PASS” then return to normal weighing
mode. Calibration is complete!
IX. Troubleshooting
• Problem: Scale will not turn on
• Solution: Check the batteries or AC adapter
• Problem: Displayed weight fluctuates randomly
• Solution: Make sure your workspace is stable and
free of any air currents, vibration, or magnetic fields
• Problem: Displayed weight is inaccurate
• Solution: Perform a calibration adjustment