Owon PDS5022S User Manual page 91

User's Manual of OWON Colour Digital Storage Oscilloscope
calibration performs an internal self- alignment routine to optimize the signal path in the
oscilloscope. The routine uses internally generated signals to optimize circuits that affect
channel sensitivity, offset and trigger parameters. Let the instrument to warm up for at
least 30 minutes before performing self- calibration. You should perform self- calibration
according to the following recommendations:
• Every 12 months or after 2000 hours of operation
• If the ambient temperature is > 10 °C from the calibration temperature
• If you want to maximize the measurement accuracy
• After experiencing abnormal operation.
• To verify proper operation after repairing
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