User's Manual

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4-8-1. CAPACITY
This information lists total capacity and used memory of each memory.
4-8-2. BUILT-IN
Turn OFF this function when you want to store data to external memory devices only.
When this function is OFF and there is no external memory device to record the data,
Self-Guard records data onto the built-in memory. If external memory device gets
available again, then Self-Guard closes the file being recorded to the built-in memory
and starts to record the data onto the external memory device.
4-8-3. DATA FORMAT