RIGOL
Service Guide for DM3000 Series
Calibration Notice
Calibration Interval
The multimeter should be calibrated on a regular interval determined by the
measurement accuracy requirement of your application. Generally, a 90 days interval
is recommended, also a 1-year interval could be used for calibrating depending on
your actual requirement. RIGOL does not recommend extending calibration intervals
beyond 1 year for any application.
Whatever calibration interval you select, RIGOL suggests that completing
re-adjustment should always be performed in conformity to its regulations offered by
RIGOL during calibrating. If you actually do this, a good performance will be hold
within interval to next calibration or longer.
Calibration Explanations
During calibrating, the calibration factor is determined by current input value and
saved in non-volatile memory and will not be changed until next calibration. Basically
two steps should be performed during calibrating: Zero Adjustment and Gain
Adjustment (except for AC and frequency measurement).