Feb 14, 2017 - 04:05 AM
Reread this section and let us know if you have additional questions:
Use the AES Trigger Pickup to sync your MODIS, VERUS, or Vantage Pro scope display to an ignition event. When attached to a plug wire, the AES Trigger Pickup will shape the signal into a clean pulse that your scope can use as a trigger.
Displaying a trigger signal on the screen is a very powerful aid for signal analysis, whether you need to judge the relationship of a signal to a position of the crank shaft or to an ignition event, or simply, just to hold/stabliize a repetitive signal. The pulse produced by the trigger pickup makes this possible.
Screen shot from a Snap-on MODIS with AES# 01-14 Trigger Pickup providing reference signal on CH 4 (red). The RPM pickup included with the MODIS does not provide an on-screen trigger reference.