User Manual

2 To Set the Vertical System RIGOL
DS4000 User’s Guide
2-11
Delay Calibration
When using an oscilloscope for actual measurement, the transmission delay of the
probe cable may bring greater error (zero offset). DS4000 allows users to set a delay
time to calibrate the zero offset of the corresponding channel. Zero offset is defined
as the offset of the crossing point of the waveform and trigger level line relative to
the trigger position, as shown below.
Press CH1 Delay-Cal and use to select the desired delay time. The range
available is from -100 ns to 100 ns.
Note: this parameter is related to the horizontal time base currently set. For example,
when the horizontal time base is 5 us, the step of delay time setting is 100 ns; when
the horizontal time base is 1 us, the step of delay time setting is 20 ns; when the
horizontal time base is 500 ns, the step of delay time setting is 10 ns.
Trigger Position
Trigger Level
Zero Offset