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Vertical Scale
The vertical scale can be adjusted in Coarse or Fine mode.
Coarse adjustment (take counterclockwise as an example): Set the vertical
scale in 1-2-5 steps namely 500 uV/div, 1 mV/div, 2 mV/div, 5 mV/div, 10
mV/div …10 V/div.
Fine adjustment: Further adjust the vertical scale within a relatively smaller
range to improve vertical resolution. For example: 2 V/div, 1.98 V/div, 1.96
V/div, 1.94 V/div …1 V/div.
If the amplitude of the input waveform is a little bit greater than full scale
under the current scale and the amplitude would be a little bit lower if the next
scale is used, fine adjustment can be used to improve the amplitude of
waveform display to view signal details.
Press the CH1 button on the front panel; then press the Adjust softkey to select the
desired mode. Turn the Vertical Variable Knob to adjust the vertical scale
(clockwise to reduce the scale and counterclockwise to increase).
The scale information in the channel label at the right side of the screen will
change accordingly during the adjustment. The adjustable range of the vertical
scale is related to the probe ratio currently set. By default, the probe attenuation
factor is 1X and the adjustable range of the vertical scale is from 500 uV/div to 10
V/div.
Note: Push the Vertical Variable Knob to quickly switch between Coarse and Fine
adjustments.
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