Bird Technologies SA-6000EX - Manual (Page 90)

Bird Technologies
74
Using Delta Markers
In the delta marker mode, only active markers will be visible. The
delta marker feature displays the difference (delta) in both frequency
and value between the selected marker and each active marker. If the
limit line is active, you will also see the difference between the
selected marker and the limit line. The frequency difference between
the selected marker and the limit line will always be the frequency of
the marker. All markers follow the current trace only.
Note: The delta marker feature compares points only on
one trace, and you must have at least two active markers for the
delta option to work.
1. Make sure that you are in either Measure Match mode or Fault
Location mode
2. To select and use delta markers, follow the numbered steps in
Figure 36 on page 74.
Figure 36 Delta Markers
Step Action
1 Press the Marker key to enter marker setup
2 Press the Mark softkey to select an active
marker (1-6)
3 Press the Delta softkey to cycle through
the active markers and limit line (if active)
4 Press the Esc key to return to the test screen