Specifications

Engine Management and Data Acquisition SystemsPage 28
M DMC DM DMC CM DMC BM DMC A
· DMC A
is version is intended for fuel flow sensors which have a very low trigger level.
Heavy filtering minimises the possibility of interference, resulting in significant variation of the trigger level
with frequency.
· DMC B
is version is intended for engine trigger sensors that have insufficient amplitude to trigger a logic level
input.
Minimal filtering avoids delays in the signal. e trigger level does not vary significantly at normal operating
frequencies.
· DMC C
is version is intended for ignition system input conditioners, typically used in drag racing, for measuring
ignition timing.
· DMC D
is version is intended for magnetic wheel speed sensors.
e signal should be symmetrical around zero volts.
Heavy filtering minimises the possibility of interference, resulting in significant variation of the trigger level
with frequency.
Dual Magnetic Converter (DMC)
Magnetic Sensor Amplifiers
e Dual Magnetic Converter (DMC) converts magnetic style
signals to open collector output signals – a square wave. is
makes a typical magnetic sensor behave as a switched or Hall
Effect sensor, to make the signals suitable for use with MoTeC
ECUs and loggers.
is allows magnetic sensors to be used in applications where
previously a Hall sensor was required, for example when using
the digital inputs on an ECU to measure wheel speed.
A single DMC can convert two independent magnetic sensor
signals.
e DMC comes in 4 versions, each having different trigger
levels according to the requirements of the intended applica-
tion.
M PCHOP CCW
Porsche Narrow-tooth distributor
chopper wheel, 6 cylinder
Counterclockwise
M PCHOP CW
Porsche Narrow-tooth distributor
chopper wheel, 6 cylinder
Clockwise
Trigger Wheels
Engine Hardware