Problem & answerW-03
Daily Verification Out of Tolerance
Also covers: Incorrect weight · check weight fails
Likely causes
- Scale out of calibration
- Check weight damaged, dirty or handled with bare hands
- Scale not level or not warmed up
- Environmental disturbance
How to fix it
- 1Stop using the scale and label it DO NOT USE.
- 2Clean the check weight and repeat the test using tongs or gloves.
- 3Level the scale and repeat after warm-up.
- 4If it still fails, notify the supervisor and arrange calibration with certified weights.
- 5Notify QA: assess every weighing made since the last passing verification for impact.
It is fixed when
Check weight reads within the site acceptance limit after recalibration.
Stop it coming back
- Verify every scale daily before use and record the result.
- Keep check weights in their case and handle with tongs.
Did this solve the problem?