Maintenance and Troubleshooting
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3. Insert the new battery into the battery slot, flip the battery handle, and install the battery cover.
7.3 Battery Maintenance
Purpose of battery installation
A battery is required for the RTC timing of the clock in the controller and for keeping the CMOS data
when the power is off. If the battery is not installed or the battery is being discharged, the clock will
stop timing, and the CMOS data will be lost when the power is off.
Battery life and replacement interval
The actual service life of the battery is related to the application scenario of the controller. The curve
below shows the longest service life and is for reference only.
When the controller prompts that the battery is abnormal, replace the battery in time to ensure that
the clock function of the controller is normal.
When a time deviation is found, check the battery voltage and replace the battery in time.
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