GRAPHTEC GL820 - Setting the Date and Time; How to Recharge the Rechargeable Battery; How to Set the Date and Time

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CHAPTER 2 Checks and Preparation
2.16 Setting the Date and Time
If you are using the GL820 for the first time, charge the internal rechargeable battery and then make the date
and time settings.
If the GL820 is not used for a period of approximately six months, the internal rechargeable battery may be discharged and the
date and time may revert to the initial settings. If this happens, recharge the battery before using the GL820.
How to Recharge the Rechargeable Battery
Using the AC adapter provided, connect the GL820 to a mains power outlet, turn on the power switch, and
then leave the GL820 connected for at least 24 hours.
How to Set the Date and Time
Press the [MENU] key, display the “OTHER” screen, and then set the date and time at the Date/Time
Settings sub-menu. For details, see “Date/Time” on page 3-39.