ONOSOKKI DS-2000 series Operation Manual page 9

3-5 Adjusting Voltage Range
Set a voltage range and a frequency range to a value suitable for measurement.
While hammering the object under measurement (with a constant force) as if it drops by its
weight, select a range for displaying a signal waveform as large as possible so that the
LED of the LEVEL indicator for each channel does not light up.
LEVEL indicator lights in red at level over.
Set an input range.
Select a range so that level over does
not occur while hammering.
8