NF DP420LS Instruction Manual page 151

4. Advanced Operation
(b) In the case of USB memory, push [New] soft-key to save for the first time. To overwrite the
existing data, select the data to be overwritten in data list box, and push [Store] soft-key.
Internal memory
5. A window to confirm the save name opens. Enter the name, and then select [OK]. For how to
enter a string, see 3.3.6.
 Loading from a Basic Setting Memory
1. In the Memory View, select [Setting Recall].
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USB memory
PROGRAMMABLE AC POWER SOURCE