To Specify The Amplitude Unit; To Adjust Bias - Rigol DHO900 Series User Manual

Menu
50000X
TIP
The oscilloscope auto-recognizes certain probes with a fixed attenuation ratio. After that, the
probe ratio will also be auto recognized to save you from configuring it manually.
Go Back to the Vertical Menu
In the Probe setting menu, click or tap Vertical to go back to the Vertical menu.
5.9

To Specify the Amplitude Unit

Click or tap the channel status label at the bottom of the screen, and then the
Vertical menu is displayed. Click or tap the Unit drop-down button to select W, A, V,
or U. The default unit is V.
Changing the amplitude unit also changes the units of the functions related to the
channel accordingly.
5.10

To Adjust Bias

When you use an oscilloscope to make actual measurements, a small offset that arises
from the temperature drift of the component or external environment disturbance
may occur on the zero-cross voltage of the channel, which will affect the
measurement results of the vertical parameters. This series oscilloscope allows you to
set an offset calibration voltage for calibrating the zero point of the corresponding
channel so as to improve the accuracy of the measurement results.
In the "Vertical" menu, click or tap the Up/Down arrow icon at the right side of the
input field of Bias to increase or decrease the bias value. You can click or tap the input
field to set the value with the pop-up numeric keypad. You can also use the
corresponding multipurpose knob to set the value.
Value Input Area
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Attenuation
(display amplitude of the signal: actual
amplitude of the signal)
50000:1
Decrease Increase
Vertical System
DHO900 User Guide
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