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Vertical System
•
Fine adjustment: Use the icons at the right side of Scale or rotate the knob to
further adjust the vertical scale within a relatively smaller range to improve
vertical resolution. If the amplitude of the input waveform is a little bit greater
than the full scale under the current scale but 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.
•
Coarse adjustment: Use the icons at the right side of Scale or rotate the knob to
adjust the vertical scale in a 1-2-5 step sequence, i.e. 100 μV/div, 200 μV/div, 500
μV/div, 1 mV/div, 2 mV/div, 5 mV/div, 10 mV/div...10 V/div.
5.3
To Adjust the Vertical Offset
Vertical offset indicates the offset of the signal ground level position of the waveform
from the vertical center of the display. Its unit is consistent with the currently selected
amplitude unit (refer to "
moves the corresponding channel's waveform up and down. The vertical offset
information (as shown in the following figure) in the channel status label at the
bottom of the screen will change accordingly.
The adjustable range of the vertical offset is related to the current input
impedance,probe ratio and vertical scale.
When CH1 is turned on and activated, you can adjust the vertical offset with the
following methods:
•
Rotate the Vertical
adjust the vertical offset within the adjustable range. Rotate this knob clockwise
to increase the vertical offset or rotate it counterclockwise to reduce the vertical
offset. Pressing the knob can quickly reset the vertical offset (set the vertical
offset to 0).
•
Enable the touch screen function, and then adjust the vertical offset with the
drag gesture. For details, refer to "
•
In Vertical menu, click or tap the Up and Down arrow icon at the right side of
the input field of Offset to increase or decrease the offset value or use the
corresponding multipurpose knob to set the value. You can also click or tap the
input field to input a specific value with the displayed numeric keypad.
HDO4000 User Guide
44
To Specify the Amplitude Unit
POSITION knob at the right section of the front panel to
Drag
".
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"). Adjusting the vertical offset
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