PLASMA
II PLUS
CAPACITIVE DISCHARGE IGNITION SYSTEM
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Plasma
II+ CDI with Direct Crank Sensor |
Plasma
II+ CDI with Hall Effect Module |
The
PLASMA II PLUS is a distributorless Capacitor
Discharge Ignition system designed to replace the archaic magnetos
on aircraft engines.
Like all Light Speed Engineering ignition
systems, the PLASMA II PLUS features automatic
ignition advance based on engine load and RPM, auto
retard for starting and a standard pulse tachometer
output
All PLASMA II PLUS and Plasma III Capacitor Discharge Ignition systems
have the following options installed:
Key-Switch
Option
The key
switch option built into the PLASMA II PLUS allows
the use of a standard aircraft key switch to turn
the system on and off. A single conductor
shielded wire is routed to the key switch just like
the P-Lead from a magneto. Connecting the
center-conductor with its shield at the key switch
disables the PLASMA CDI without drawing any
current.
Timing
Output
The timing
output enables the pilot to monitor the ignition
timing of the system at all times of
operation. A digital voltmeter or a designated
digital mV display can be used to display the actual
timing down to 1/10th of a degree. During
startup this display would typically read 00.00
degrees, at high power conditions it will show
approx. 25 degrees and during low power operations
it will show as much as 42 degrees of timing
advance. Should there be an electronic
malfunction inside the ignition system it would be
reflected by erroneous timing indications.*
RPM
Output
Included in
the options of the PLASMA II PLUS is a built in
analog tachometer output. This provides RPM
information for a mV meter. 0.3 volts
represent 3,000 RPM, .0 v = 0 RPM.*
Absolute
Manifold Pressure Output
The
manifold pressure display option uses the calibrated
and temp compensated manifold pressure information
of the PLASMA CDI and allows it to be displayed on a
digital mV meter.*
5V
Power Supply Output
If a
permanent digital LCD display is used in the cockpit
for any or all of the display options, the PLASMA
CDI has a 5V power output to run the display.
Thus, no extra wires need to be run from the
electrical bus.
Potentiometer
Option
A
potentiometer can be used to bias the timing curve
in flight from the cockpit. This option is
primarily useful for engine testing and racing
applications. Caution, this feature allows the
pilot to retard and over-advance the ignition
timing, thus, potentially harming the engine and
ruining your day.
Interconnect
Link
The
interconnect feature connects two PLASMA II CDI
ignition systems together. If one system is
disabled, the one remaining in operation will
automatically readjust the timing curve for optimum
power with a single system. It is not
necessary to use this feature but it is helpful to
optimize performance if only one ignition system is
used due to an alternator failure. With the
interconnect feature in use there is virtually no
ignition drop when each system is turned off.
Otherwise, a normal ignition drop-off occurs during
system tests.
Hall Effect Sensor Module installed on 4 cylinder
Lycoming type engines only.
On Turbo and Super-Charged systems, add $125 per
ignition system.
On all Franklin and Continental engine
ignition systems, add $195 per engine installation.
*DISPLAY ACCESSORIES
The Simpson digital
panel meter, available through Light Speed
Engineering, is a high quality LCD display. It
fits into a 0.88in x 2.68in panel cutout and is only
0.5in deep. You can use three displays for all
three functions or select the functions on a rotary
switch linked to one display.
| Simpson
LCD Display. Top installation reads
timing advance and bottom installation reads
manifold pressure. Rotary switch not
depicted. |
Pre-wired
display and rotary switch option available for the Plasma II
Plus and Plasma III CDI ignition systems.
Specify length from your Plasma CD box location to
the panel mounting location (plus that required to
route the wire) when ordering. If you are
ordering the display for a dual ignition system,
also specify the length between the output
connectors on the 2 Plasma CD boxes.
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