SIGLENT SDS1000D Manual de usuario descargar pdf (Pagina 51)

sweep speed selected.

2.8.1 Signal Source

You can use the Trigger Source options to select the signal that the oscilloscope uses

as a trigger. The source can be any signal connected to a channel BNC, to the EXT

TRIG BNC or the AC power line (available only with Edge triggers).

2.8.2 Trigger Type

The scopes have five trigger types: Edge, Video, Pulse, Slope, and Alternative.

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Edge Trigger

Use Edge triggering to trigger on the edge of the oscilloscope input signal at the trigger

threshold.

Table 2-13 Edge Trigger function Menu:

Option Setting Explain

Type Edge With Edge highlighted, the rising or falling edge

of the input signal is used for the trigger.

CH1

CH2

CH3

CH4

Triggers on a channel whether or not the

waveform is displayed.

EXT Does not display the trigger signal; the Ext

option uses the signal connected to the EXT

TRIG front-panel BNC and allows a trigger level

range of -1.2V to +1.2V.

EXT/5 Same as Ext option, but attenuates the signal

by a factor of five, and allows a trigger level

range of +6V to -6V.This extends the trigger

level range.

Source

AC Line This selection uses a signal derived from the

power line as the trigger source; trigger

coupling is set to DC and the trigger level to 0

volts.

Slope

Trigger on Rising edge of the trigger signal.

Trigger on Falling edge of the trigger signal.

Trigger on Rising edge and Falling edge of the

trigger signal.

Mode Auto Use this mode to let the acquisition free-run in

the absence of a valid trigger; This mode allows

an untriggered, scanning waveform at 100

ms/div or slower time base settings.

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