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Chapter 2 To Set the Vertical System
Table 2-2 Probe Ratio
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0.0001X
0.0002X
0.0005X
0.001X
0.002X
0.005X
0.01X
0.02X
0.05X
0.1X
0.2X
0.5X
1X (default)
2X
5X
10X
20X
50X
100X
200X
500X
1000X
2000X
5000X
10000X
20000X
50000X
Note:
After the oscilloscope auto-recognized certain probes with a fixed attenuation
ratio, the probe ratio will also be auto recognized. You do not have to set it
manually.
Input Impedance
To reduce the circuit load between the oscilloscope and the circuit under test, this
oscilloscope provides two input impedance modes: 1 MΩ (default) and 50 Ω.
1 MΩ: The input impedance of the oscilloscope is very high, and the current
⚫
flowed from the circuit under test can be ignored.
50 Ω: makes the oscilloscope match with the device whose input impedance is
⚫
50 Ω.
MSO8000 User Guide
Attenuation Ratio
(display amplitude of the signal: actual amplitude
of the signal)
0.0001:1
0.0002:1
0.0005:1
0.001:1
0.002:1
0.005:1
0.01:1
0.02:1
0.05:1
0.1:1
0.2:1
0.5:1
1:1
2:1
5:1
10:1
20:1
50:1
100:1
200:1
500:1
1000:1
2000:1
5000:1
10000:1
20000:1
50000:1
RIGOL
2-7
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