81405 Datasheet, PDF (5/8 Pages) Mallory performance club – MSD 44 Amp Pro Mag Generator

USER INFORMATION
5
TACHOMETERS AND DATA ACQUISITION EQUIPMENT
  Tachometers and data acquisition systems require a certain type of trigger signal. Most of these
systems require either a 12-volt square wave signal or a current style inductive pickup. MSD has
components that can provide both signal types.
Tach Terminal
The MSD Timing Retard,
PN 8168 has a Tach
output terminal that pro-
vides a 12 volt square
wave signal.
Tach Converter, PN 8132
This converts the Pro Mag’s
signal to a 12-volt square wave
with a 20% duty cycle. It will
work on all Pro Mag systems
and requires a 12 volt battery
source.
GRAY - TACH
GRID Tach Lead
Figure 6 Wiring a Tachometer with the Tach Converter.
TACH
TACH TRIGGER WIRE
RED TO
SWITCHED 12V
ORANGE
FROM PRO MAG
BROWN/YELLOW
OTHER MAGNETOS
VIOLET
OR
BROWN/ORANGE
PRO MAG/VERTEX
MAG
KILL
SWITCH
BLACK
FROM
PRO MAG
BROWN/BLACK
BLACK
TO BATTERY (-)
TERMINAL
TM
IGNITION
PRO MAG
PN 8132
TACH
CONVERTER
AUTOTRONIC CONTROLS CORPORATION
1490 HENRY BRENNAN., EL PASO, TX 79936
INDICATES CONNECTION
Figure 7 Wiring a Tachometer with the Tach Converter.
M S D  •  WWW.MSDPERFORMANCE.COM • [phone] • FAX [phone]