Altronic CPU-95 - 11.3 Offset Adjustment Screen

CPU-95EVS OI 7-13
All rights reserved © ALTRONIC, LLC 2013
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11.3 The offset adjustment screen (F4) permits the operator to adjust an offset to
the spark reference number (± 15 counts) to compensate for minor variations
in reference numbers between individual coils of the same type and voltage
demand.
FROM THE PRESS
HOME SCREEN TO VIEW
DISPLAY
SCREEN
PRESS PRESS PRESS
TO VIEW TO VIEW TO
NEXT NEXT EXIT
CYLINDER
F4
CYLINDER
ESC
PRESS
TO VIEW
BASE
DISPLAY
F1
11.4 The spark reference number is used in conjunction with comparative thresholds
to set diagnostic codes for several different ignition system and spark plug
conditions. When a threshold is violated twice in a row, the corresponding
diagnostic flag is set for the appropriate cylinder. The diagnostic flags are
latching and will exist until the unit is restarted or until a reset or power-down
occurs.
Open Primary CAVG < 1
Shorted Primary CAVG < 50
Low Spark Voltage CAVG < user programmable threshold (typ. 100)
High Spark Voltage CAVG > user programmable threshold (typ. 180)
No Secondary Spark CAVG > user programmable threshold (typ. 250)
Low From Engine (EAVG - CAVG) > user programmable threshold (typ. 20)
High From Engine (CAVG - EAVG) > user programmable threshold (typ. 20)
F1
NEXT
NOTE: Improper use of this feature may
limit the effectiveness of the diagnos-
tic system and result in spark refer-
ence numbers that mask real or create
false problems.