Skutch Electronics DL-4 - Manual (Page 5)

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PAUSE button to decrease setting, and TEST button to increase the setting. Press IDLE
button to exit.
The SD Card
The SD card should ONLY be installed or removed from the DL-4 while it is in the IDLE
MODE or when the unit is removed from power. The DL-4 is not compatible with all SD
cards. It will ONLY work with one of the following SD Cards. Due to the
inconsistencies in the specifications of SD Cards from one manufacture to the next, the
DL-4 is not compatible with all SD Cards. The following is a list of approved SD Cards.
Only one of these types of cards should be used.
Compatible SD Cards
1- Toshiba "High Performance" SD Memory Card (Not Over 2G in size)
2- ScanDisk SD Card (Not over 2G in size)
3- ScanDisk Ultra II SD Card (Not over 2G in size)
Using the SD Card in your Computer
The SD Card can be inserted into a Windows based computer and the audio wav file can
be copied or replaced by the computer. There is ONLY one file that should be stored on
the DL-4 SD card. It is named "DL4.WAV" (all capitals). If you wish to store a WAV
file from your computer to the SD card, you MUST change the name of the file first. The
name of the new file MUST be "DL4.WAV" before you copy it to the SD Card. If any
other file is stored on the SD Card, the DL4.WAV file might not play back properly, and
the other file could be corrupted. If you wish to replace the DL4.WAV file, simply write
the file to the SD Card. The old file will automatically be deleted. If you have problems,
try re-formatting the SD Card before you copy the file.
Size of Card
The DL-4 uses approximately 1.92MB of memory for each minute of recorded audio.
Even though a card states a specific size, you don't have access to all of the memory in
the card. A certain amount of memory is lost to overhead for the card. The following
shows the maximum message length for each size of size of SD memory card:
(Can not use SD cards under 64MB)
128MB = 1 Hour, 2.5 Minutes