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2. Before Use
2-6 Replacing Batteries
Always turn off the power before replacing batteries.
If you replace batteries while the power is turned on, the measured values that are
obtained during operations are not saved. Also, this may cause a failure.
If an unexpected display appears on the LCD during battery replacement or
measurement, ie. settings other than selected, or if the meter does not respond when
a button is pressed, remove the batteries, wait at least 10 seconds, and then re-install
them.