Hioki CHT3548 - Press any Timing to Save (Manual Storage)

Hope Electronics Technology Manual Edition V1.0 63
7.1 Press any timing to save (manual storage)
Press the [ENTER] MEMO key to save the displayed measured value
The memory number is incremented by one each time data is saved, and
cannot be specified. If data is accidentally saved, clear the last data item saved
(latest data)