Fluke fluke123 User Manual

Using The Test Tool

Triggering on a Waveform

Isolated Triggering

Use the optically isolated trigger probe (ITP120, optional)
to trigger on an external source, and to isolate the test tool
from a trigger waveform. See Figure 1-17.

To choose the isolated trigger probe, select ‘EXT’ in point

of the previous example. Trigger level is fixed and is

TTL compatible.

Figure 1-17. Isolated Triggering

Triggering on Video Signals

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Apply an interlaced video signal to the red input A.

To trigger on a random video line, continue from point

of the previous example as follows:

Highlight VIDEO on A.

Open the VIDEO TRIGGER
submenu.

Highlight PAL.

Select PAL.

Highlight RANDOM.

Select RANDOM.