6400 Reference Manual
28
Secondary Ignition
The calibrated secondary ignition capacitive clip is used to measure the secondary ignition voltages. The
attenuation is 10,000:1 and with a 50-kilovolt measurement range. The capacitive clip is clipped around the
spark plug wire.
A difference in the 6320 and 6400 is spark collection. Now, you will see only the detailed spark trace in real
time and be able to view the ionization voltage, arc duration and timing of the ignition spark.
*** DO NOT CONNECT SPARK CLIP TO ANALYZER WHILE CLIP IS
ENERGIZED ON A SECONDARY IGNITION WIRE ***
The alligator clip may be connected to engine ground, but is not usually necessary.
If the analyzer is operating erratically during ignition testing, try connecting, or disconnecting the ground clip to
see if this will improve the analyzer stability.
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