User Manual

The feature is very useful because you can see the events that led up the trigger point

everything to the right of the trigger point is called posttrigger information the

amount of delay range (pre-trigger and posttrigger information) available is

dependent on the 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

ADS1000 Series have five trigger types: Edge, Video, Pulse, Slope, and

Alternative.

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

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.