Trigger holdoff, Trigger holdoff -6 – RIGOL MSO/DS2000A Series User Manual

Page 92

RIGOL

5-6

MSO2000A/DS2000A User’s Guide

Trigger Holdoff

Trigger holdoff can be used to stably trigger the complex waveforms. Holdoff time is
the amount of time that the oscilloscope waits before re-arming the trigger module.
The oscilloscope will not trigger even if the trigger condition is met during the holdoff
time and will only re-arm the trigger module after the holdoff time expires.

To capture the periodic signal as shown in the following figure (b), you need to set a
proper holdoff time to make each trigger is on the same position. Otherwise, the
signal captured by the oscilloscope might be as shown in the figure (a).

(a) Without Proper Holdoff Time

(b) With Proper Holdoff Time

Figure 5-2 Schematic Diagram of Trigger Holdoff

Press MENU  Setting  Holdoff in the trigger control area (TRIGGER) at the
front panel and use the multifunction knob

or the navigation knob to modify the

holdoff time (the default is 100 ns) until the waveform triggers stably. The adjustable

range of holdoff time is from 100 ns to 10 s.

Note:

Trigger holdoff is not available for Nth edge trigger, video trigger, RS232

trigger, I2C trigger, SPI trigger, USB trigger and CAN trigger.

Trigger Position

Holdoff Time

Trigger Position

Trigger Level