Chapter 7 Logic Analyzer    RIGOL 
MSO4000/DS4000 User’s Guide  7-11 
To Set the Delay Calibration of the Digital Channels 
 
When using an oscilloscope for actual measurement, the transmission delay of the 
probe cable may bring greater error (zero offset). Zero offset is defined as the offset 
of the crossing point of the waveform and threshold level line relative to the trigger 
position (refer to "To Set the Delay Calibration"). MSO4000/DS4000 allows users 
to set a delay time to calibrate the zero offset of the corresponding channel. 
 
Press LA  Delay-Cal and turn the multi-function knob   to adjust the delay 
calibration time at the specified step and the range available is from -100 ns to 100 
ns. Pressing the multi-function knob 
 can quickly reset the delay time to 0.00 s.  
 
Note: The delay calibration time setting is related to the instrument model and the 
current horizontal time base. The larger the horizontal time base is, the larger the 
setting step will be. Take MSO4054 as an example; when the horizontal time base is 
50 ns, the step is 1 ns; when the horizontal time base is 2 μs, the step is 40 ns; when 
the horizontal time base is greaten than or equal to 10 μs, the delay calibration time 
cannot be adjusted.   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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