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4.4 System calibration
The electrical measurement, electrical output and internal pressure modules of this calibrator all
require periodic calibration.
This calibrator can also provide calibration for external pressure modules.
Before calibration, please carefully read the user manual, and perform operation after you have
understood it.
Improper calibration will affect the accuracy of calibrator, and in severe cases, may affect normal
working of the calibrator.
Provided is a factory reset function to restore calibration data to factory settings. When performed
the calibration date is restored to "----/--/--".
You need to use a standard device with higher accuracy for calibration.
On the setup interface, enter system calibration and select an item to be calibrated.
To avoid mis-operation, this operation requires a password for access. The password is "123456".
After the calibration of the last point is completed, confirm and save it. The new calibration data
will take effect and be used. The former calibration data will be deleted permanently.
The calibrator provides a calibration notification warning. The default calibration period is 365
days. After a specific module of calibrator exceeds the calibration period, it will give a prompt when
the calibrator is powered on or the module is online. You can enable/disable the warning function
or modify the calibration period on the setup interface of calibration expiry warning.
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