User manual

RIGOL Chapter 2 Calibration Procedures

DS4000 Calibration Guide

2-2

Equivalent Calibration

Make sure the oscilloscope has been warmed up for 30 minutes before performing equivalent

calibration. Then, follow the steps below to calibrate the instrument.

1. Disconnect all the channels as well as the external trigger channel. Enter the project mode and

select EqualCal (Figure 4) to start the calibration.

2. The equivalent calibration would last for about 1 minute. Restart the oscilloscope when

“Calibration finished, please restart the oscilloscope!” is displayed.

3. Connect CH1 of the oscilloscope to the [Trig Out/Calibration] connector at the rear panel

using the BNC Cable.

4. Press Utility, enter the second-page menu and press AuxOutput to select “Fast”.

5. Press CH1 and set the input impedance of CH1 to 50 Ω and the vertical scale to 200 mV/div.

Adjust the trigger level to get stable waveform. Adjust the vertical position of CH1 to display the

waveform within the screen range.

6. Observe whether jitter occurs at the signal trigger position at 10 ns and 2 ns horizontal scales

respectively. If yes, calibrate again. The normal calibration waveform should be as shown in Figure

Figure 7