Sper Scientific 850007 Visible Light SD Card Logger - Manual (Page 24)

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Normal Mode.
Note
The meter cannot be turned off from
the memory record function. Exit the
function, then press and hold
POWER to turn the meter off.
Backlight
1. The backlight turns on
automatically when the meter is
turned on.
2. Press to turn the backlight off.
3. Press to turn the backlight on.
View Real Time Clock
To view the time function during
normal measurement (not during
datalogging):
1. Press TIME CHECK. The time
information (Year, Month/Date,
MEASUREMENT
PROCEDURES