User`s guide

RIGOL Chapter 2 To Set the Vertical System
DS1000Z User’s Guide
2-8
Delay Calibration
When using an oscilloscope for actual measurement, the transmission delay of the
probe cable may bring greater error (zero offset). DS1000Z 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 in the figure below.
Figure 2-2 Zero Offset
Press CH1 Delay-Cal and use to set the desired delay time. The range
available is from -100 ns to 100 ns.
Note: This parameter is related to the instrument model and the horizontal time
base currently set. The greater the horizontal time base is, the greater the setting
step will be. Take DS1104Z as an example and the steps under different horizontal
time bases are as shown in the table below.
Table 2-2 Relation between the delay calibration step and horizontal time base
( DS1104Z)
Horizontal Time
Base
Delay Calibration Time Step
5ns 100ps
10ns 200ps
20ns 400ps