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8. Troubleshooting
8.1 Troubleshooting
Problem:
Display remains off after switching on.
Possible causes:
•
Power cord is not connected
•
Power line fuse blown
•
Power transformer damaged
•
Instrument faulty
Problem:
Weight display is constantly changing or unstable.
Possible causes:
•
The sample pan is in contact with the draft shield or heating chamber
•
Glass draft shield is not closed
•
Test bench vibration
•
Electromagnetic field interference
•
Power supply instability
Problem:
Displayed value and actual weight are not consistent.
Possible causes:
•
Not calibrated before weighing
•
Not returned to zero before weighing
•
Balance not leveled well
