Hioki Super megohm SM7110 - Maintaining Measurement Accuracy (Self-Calibration Function)

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Maintaining Measurement Accuracy (Self-Calibration Function)
4.6 Maintaining Measurement Accuracy
(Self-Calibration Function)
The self-calibration corrects the o󰀨set voltage and the gain drift in the internal circuit.
The default setting is [ON]: thus, the self-calibration is executed automatically every time the set
interval elapses (default setting: 600 s).
Regardless of whether the self-calibration is set to on or o󰀨, the self-calibration is automatically
executed once at a startup and ve minutes later.
IMPORTANT
• Executing self-calibration is a condition for maintaining the measurement accuracy of the
instrument. If this function is set to [OFF], manually calibrate the instrument regularly. Be sure
to perform self-calibration manually especially after warming-up the instrument or when the
ambient temperature has changed by 2°C or more.
•
A trigger generated during self-calibration causes the instrument to suspend an
immediate measurement. Once the self-calibration is complete, the instrument starts
the measurement, with the result that it takes longer between the trigger input and the
end of the measurement.
How to execute the self-calibration manually
Pressing the F2 key [EXEC] while the settings screen is displayed executes the self-calibration
once.
Procedure to display the settings screen: (Measurement screen) MENU key >
[MEAS] tab
1
Select whether to perform the self-calibration automatically or not.
[ON] Yes (default setting)
[OFF] No (It is necessary to execute self-calibration manually at periodic intervals.)