Instruction manual
97
Store Operation
Data recovery
If an unexpected power failure occurs, the data may be damaged. In such
a case, turn the unit on without removing the SD memory card since the
unit is equipped with a data recovery function. However, please note that
the recovery of all data is not guaranteed. Formatting on a computer cannot
recover the data.
Example:
For the case of L
p
100 ms, the data of approximately up to the last 10
minutes can be recovered.
For the case of L
eq
10 s, the data of approximately up to the last one
hour can be recovered.
However, note that the data may not be recovered depending on the
setting.
Formatting an SD memory card
Note
When an SD memory card is formatted (initialized),
all data present on the card will be lost.
In the following cases, you should format the SD memory card:
• Before using the SD memory card in the NL-42/NL-52 for the rst
time
• If the NL-42/NL-52 does not seem to recognize an inserted SD
memory card
• When wishing to delete all data from the SD memory card
To format an SD memory card, proceed as follows.
1. Select [Card Format] on the [SYSTEM (Language)] screen and press
the MENU/ENTER key.
2. The con rmation screen appears. Press the MENU/ENTER key.
Note
When formatting the SD memory card in a computer,
select FAT or FAT32 as le system.