NF DP420LS Instruction Manual page 130

4.3 Using Power Fluctuation Testing (Simulation) Function
3. Set the number of memory to be operated in [Memory No.] item.
4. To clear, push [Clear] soft-key. Confirmation message is displayed. Select [OK]. In the cleared
number of the memory, the simulation data at factory shipment is stored.
DP420LS/DP480LS
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