Multisystem Ignition Analyzer
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3- Press the
“ Engine Cycles” button repeatedly to select the number of cycles for the
engine under testing, until the display shows the correct setting.
4- Select the measurement to show on the display: RPM, spark burn time or spark
KVolt.
5- Select the mode for the secondary display: the Minimum and Maximum value of
the main display or the complementary measurements.
6- Place the capacitive pick-up over one of the spark wires, read the measurements.
Fig. 6
– Capacitive pick-up on spark plug wire
Important:
◆
The relative position from the capacitive pick-up to the spark plug wire should be
the same for every measurement, so as to obtain the consistent result when
measuring the spark KVolt on spark plug wires.
◆
There is an easy way to obtain the consistent result of the measurement: place the
capacitive pick-up at 90
°
or parallel to the spark plug wire, and then repeat the same
positioning for every spark plug wire.
◆
The spark burn time and RPM
measurements are not sensitive to the exact position of the capacitive pick-up
relative to the spark plug wire, but it has to be placed so the instrument can detect the
signal.
◆
The capacitive pick-up may receive signals from several wires at the same time if
several spark plug wires are bounded close together, this may cause false
measurement. In order to reduce interference and obtain the correct measurement,
the wires under test should be separated in this situation.
3.4.4 KV Adjust function
In the SPW (Spark Plug Wire) mode, the instrument allows the user to adjust the
scale used for spark plug wire peak voltage measurements in order to match
readings with other instruments (i.e. Ignition Scope ).
To use the KV Adjust function:
1- Turn the instrument on.
2- To perform adjustments of the KV scale while performing actual measurements,
select the Peak KVolt function as described in
“3.4.1.3 Spark KVolt”.
3- Press and hold the
“ Engine Cycles” button until the minimum reading in the
display is replaced by
“KV Scale” and a number followed by a “%” sign.
4- While holding the
“Engine Cycles” button pressed, use the “F2” (Cylinder Increase)
Summary of Contents for KM20
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