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Resetting to the default values
If the unit cannot be operated, restarting the unit may improve the problem. We recommend restarting the unit before returning the settings to the default settings.
If the operations are not improved by restarting the unit, follow the steps below.
Various settings are reset to the factory default values. Make settings again.
Turn off the power using 
.
.Press while pressing and holding METER ON/OFF.
while pressing and holding METER ON/OFF.The Illumination and LEDs continue to blink while the button is being held down.