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Chapter 2 To Set the Vertical System RIGOL
MSO2000A/DS2000A User’s Guide 2-5
I nput I mpedance
This oscilloscope provides two input impedance modes (1 MΩ (default) and 50 Ω) to
reduce the circuit load caused by the interaction of the oscilloscope and the circuit to
be tested.
1MΩ: the input impedance of the oscilloscope is rather high and the current
flowing into the oscilloscope from the circuit under test can be ignored.
50Ω: match the oscilloscope with a device with 50 Ω output impedance.
Press CH1 I nput to set the input impedance of the oscilloscope. When “50Ω” is
selected, “Ω” is displayed in the channel status label at the bottom of the screen.
Note: The setting of the input impedance affects the settable range of the vertical
scale and vertical offset of the corresponding channel. For the details, please refer to
“Specifications”.
Waveform I nvert
Press CH1 I nvert to enable or disable waveform invert. When waveform invert is
enabled, the displayed waveform rotates 180 degree relative to the ground potential.
When waveform invert is disabled, the waveform display is normal.
(a) “Invert” is disabled
(b) “I nvert” is eabled
Figure 2-1 Waveform I nvert
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