Instructions

Chapter 2 Performance Verification Test Overview RIGOL

MSO5000-E Performance Verification Guide 2-3

DC Gain Accuracy Test

Specification

DC Gain Accuracy

Specification

±3% of Full Scale

[1]

Note

[1]

: Full scale = 8 × Current Vertical Scale. 500 uV/div1, 1 mV/div, and 2 mV/div are a magnification of 4 mV/div

setting. For vertical accuracy calculations, use full scale of 32 mV for 500 uV/div1, 1 mV/div, and 2 mV/div vertical

sensitivity setting.

Test Connection Diagram

Figure 2-2 DC Gain Accuracy Test Connection Diagram

Test Procedures

1. Connect the active head of Fluke 9500B to CH1 of the oscilloscope, as shown in the figure above.

2. Set the impedance of Fluke 9500B to 1 MΩ.

3. Output a DC signal with +3 mV

voltage (Vout1) via Fluke 9500B.

4. Configure the oscilloscope:

1) Press 1 in the vertical control area (Vertical) on the front panel to enable CH1.

2) Press 1  Attenuation to set the probe attenuation ratio to "1X".

3) Press 1  Impedance to set the input impedance of CH1 to 1 MΩ.

4) Set the vertical scale to 1 mV/div.

5) Set the horizontal timebase to 1 μs/div.

6) Set the vertical offset to 0.

7) Press Acquire  Acquisition to select "Average", and then press Averages to set it to 32.

8) Adjust the trigger level to avoid that the signals are being triggered by mistake.

5. Press Measure  Add  Category to select "Vertical". Then, select "Vavg" measurement

parameter to enable the average measurement function. Read and record Vavg1.

6. Adjust Fluke 9500B to make it output a DC signal with -3 mV

voltage (Vout2).

7. Enable the average measurement function. Read and record Vavg2.

8. Calculate the relative error of this vertical scale: |(Vavg1 - Vavg2) - (Vout1 - Vout2)|/Full

Scale × 100%.

9. Keep the other settings of the oscilloscope unchanged.

1) Set the vertical scale to 500 uV/div, 2 mV/div, 5 mV/div, 10 mV/div, 20 mV/div, 50 mV/div,

100 mV/div, 200 mV/div, 500 mV/div, 1 V/div, 2 V/div, 5 V/div, and 10 V/div respectively.

2) Adjust the output voltage of Fluke 9500B to 3 × the current vertical scale and -3 × the

Fluke 9500B

MSO5000-E