The markers indicate the stimulus values and the measured values at selected points of the trace (See figure below).
The markers are numbered from 1 to 15. The reference marker is indicated with an R symbol. The active marker is indicated in the following manners:
•Its number is highlighted with inverse color.
•The indicator on the trace is located above the trace.
•The stimulus indicator is fully colored.
The use of markers is described in the Markers.