Fluke 196C Triggering on External Waveforms, External Triggering, Select 1.2V under the Ext LEVEL

Fluke 196C/199C

Users Manual

Triggering on External Waveforms

Use external triggering when you want to display waveforms on inputs A and B while triggering on a third signal. You can choose external triggering with automatic triggering or with edge triggering.

1Supply a signal to the red and black 4-mm banana jack inputs. See Figure 29.

In this example you continue from the Trigger on Edges example. To choose the external signal as trigger source, continue as follows:

2	Display the TRIGGER (On Edges)
	key labels.
3	Select Ext (external) edge trigger.

Observe that the key labels at the bottom of the screen have been adapted to allow selection of two different external trigger levels: 0.12 V and 1.2 V:

	Figure 29. External Triggering
4		Select 1.2V under the Ext LEVEL
		label.

From this point the trigger level is fixed and is compatible with logic signals.

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