Fluke PM3370B user manual External Trigger 2 Channels Models only, Trig View, Ampl

5 - 34 FUNCTION REFERENCE

EXTERNAL TRIGGER (2 CHANNELS MODELS ONLY)

Description:

The External Trigger input provides an extra input that can be used as the trigger source for the Main Time Base (MTB).

The External Trigger input chargacteristics are simular to those of the input channels 1 and 2. The input has probe range indication detection and two attenuator positions (0.1 V/div. and 1 V/div.). If External is selected as trigger source the same trigger modes (Edge, TV and Glitch) are availlable as for the trigger sources CH1 and CH2.

When the External Trigger input is selected as trigger source , the signal on this input can be made visible by pressing the function key TRIG VIEW. When another Trigger source is selected, Trigger View is automatically switched off.

Trigger View can be used in Single- and Multiple shot in timebases up to 10μs/div. In the other timebase modes Trigger View automatically selects Alternating mode for timebases faster than 10μs/div. This result in the simultaneous acquisition of the External Trigger input.

Key sequence:

EXT TRIG

Key to select the external trigger input as trigger source.

Selects trigger slope when External trigger is selected.

TRIG VIEW

Key to turn on and off the display of the external trigger signal.

AMPL

Toggle key to switch between the attunuator settings 1 V/div and 0.1 V/div.