RIGOL  Chapter 2 Vertical System Setting 
2-8  MSO4000/DS4000 User’s Guide 
Passive Probe 
 
1.  Probe Type 
Probe Type displays “Nor-Probe”; for example, when RIGOL RP3500A probe is 
connected. 
 
2.  Ratio 
For some normal passive probes, the oscilloscope can identify the probe ratio 
automatically. If not, press Ratio and turn the multi-function knob   to select 
the corresponding probe ratio; or press Ratio continuously to switch the current 
probe ratio. The probe ratios available are listed in 
Table 2-1. 
 
Table 2-1 Probe Attenuation Coefficient 
Probe Ratio 
Attenuation Coefficient 
(waveform display amplitude : actual waveform amplitude) 
0.01X 
0.02X 
0.05X 
0.1X 
0.2X 
0.5X 
1X 
2X 
5X 
10X 
20 X 
50 X 
100 X 
200 X 
500 X 
1000 X 
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 
 
 
 
 
 
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