RIGOL Chapter 2 Performance Verification Test
2-2 DS6000 Performance Verification Guide
Impedance Test
Specification
Input Impedance
Specification 1 MΩ: 0.99 MΩ to 1.01 MΩ
50 Ω: 49.25 Ω to 50.75 Ω
Test Connection Diagram
Figure 2-1 Impedance Test Connection Diagram
Test Procedures
1. Impedance test of CH1-CH4 when the input impedance is 1 MΩ
1) Connect the active signal terminal of Fluke 9500B to CH1 of the oscilloscope, as shown in
the figure above.
2) Configure the oscilloscope:
a) Press CH1 in the vertical control area (VERTICAL) at the front panel to enable CH1.
b) Press CH1 Input to set the input impedance of CH1 to 1 MΩ.
c) Rotate VERTICAL SCALE to set the vertical scale of CH1 to 200 mV/div.
3) Enable Fluke 9500B; set its impedance to 1 MΩ and select the resistance measurement
function. Read and record the resistance measured.
4) Rotate VERTICAL
SCALE to adjust the vertical scale of CH1 of the oscilloscope to 500
mV/div; then, read and record the resistance measured.
5) Turn off CH1. Measure the resistances of CH2, CH3 and CH4 respectively using the method
above and record the measurement results.
2. Impedance test of CH1-CH4 when the input impedance is 50 Ω
1) Connect the active signal terminal of Fluke 9500B to CH1 of the oscilloscope, as shown in
the figure above.
2) Configure the oscilloscope:
a) Press CH1 in the vertical control area (VERTICAL) at the front panel to enable CH1.
b) Press CH1 Input to set the input impedance of CH1 to 50 Ω.
Fluke 9500B
DS6000