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The 3M Brand EM Eye Meter may be used to detect ESD events in the Machine Model.
We place a PCB on a grounded surface within approximately two inches of the EM Eye meter.
Then, using an ungrounded soldering iron, we touch the metal components on the board.
Notice the change in the voltage reading of the ESD event we created by touching the components.
Now, let’s use a grounded soldering iron to touch the same metal components on the
PCB.
Notice that when the soldering iron is properly grounded, there should be no indication of
an ESD event.