Scope / Multimeter
Operation and Controls
28
Cursor Measurements Panel
When the cursors are turned on, the Refresh, Min, Live, Max display panel is
switched off and replaced by the Cursor Measurements Panel.
The cursor measurements panel displays the following signal and cursor
measurements:
•
Signal amplitude at two points
•
Signal amplitude difference (delta) between two points
•
Cursor position in time at two points
•
Difference (delta) in time between the cursors
•
Frequency - frequency of the signal for the time period between cursor 1 and 2
The cursor measurements panel contains values for each channel in two displays.
The amplitude and delta display is provided in the channel specific color and
includes:
–
Cursor 1
- signal amplitude at cursor 1 position
–
Cursor 2
- signal amplitude at cursor 2 position
–
Delta
- signal amplitude difference between cursor 1 and 2
The time and delta display is gray in color and includes:
–
Cursor 1
- cursor position in time at cursor 1
–
Cursor 2
- cursor position in time at cursor 2
–
Delta
- difference in time between cursor 1 and 2
–
Frequency
- the frequency value (Hz) of the signal for the time period
between cursor 1 and 2
NOTES
Frequency is the number of times a signal repeats itself per second and is
measured in hertz (Hz).
The frequency value displayed, is the inverse of the Delta value, and can also
be calculated as 1 divided by Delta. The frequency value (Hz) shown is
automatically calculated by the scope.
Example 1: Delta = 20.46ms, to get frequency divide 1 by .02046 (1/.02046
= 48.87Hz)
Example 2: Delta = 2.53ms, to get frequency divide 1 by .00253 (1/.00253
= 395.27Hz)
Use applicable decimal point placement during division as the Delta value
changes.
3.8.4 Secondary Ignition Testing
The lab scope function can be used to display secondary ignition waveforms for
conventional and select CIC and COP systems. To display secondary ignition
waveforms, optional secondary ignition coil adapter(s) and a coil adapter lead
assembly are required.
Contact your sales representative to purchase the optional adapter leads and/or
Secondary Ignition Clip-on or COP/CIC Adapters.
•
Adapter lead assembly needed:
–
Secondary Coil Adapter Lead Assembly - connects the diagnostic tool to a
secondary ignition adapter (yellow and black scope connectors and black
RCA type adapter connector). See
Secondary Ignition Coil Adapter Lead
and Clip-on Adapter (optional)
.
•
Secondary Ignition Adapters available:
Different secondary ignition coil adapters are available as optional equipment.
These adapters attach to either the secondary lead (spark plug lead) or directly
to the secondary ignition coil in order to pick up the secondary ignition signal.
–
Universal kV Ignition Clip-on adapter - clips over a spark plug or coil lead.
See
Secondary Ignition Coil Adapter Lead and Clip-on Adapter (optional)
.
–
Universal stick and flag type adapters - are loosely positioned next to or on
a secondary ignition coil.
Содержание Vantage Legend
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