Document # 31-0008
LM2_Manual_1.4.doc
31
5 Analog
Cable
The provided analog cable has 14 stripped ends. The wire assignments are as follows:
Analog Out 1 + (Lime Green)
Analog Out 1 – (Yellow)
Analog Out 2 + (Brown/White)
Analog Out 2 – (Dark green)
Analog In 1 + (Purple)
Analog In 1 – (Black)
Analog In 2 + (Grey)
Analog In 2 – (Brown)
Analog In 3 + (White)
Analog In 3 – (Red)
Analog In 4 + (Peach)
Analog In 4 – (Orange)
RPM + (Black/White)
RPM – (Blue)
5.1 RPM Input
The LM-2 has a direct tach signal input signal. This input can be used to feed a signal
from the negative lead of a coil, ECU, negative lead of an injector, or ignition box (i.e.
MSD 6AL). This tach signal can be feed to the RPM + (Black/White) wire. The negative
wire (Blue) can be connected to ground if a tach signal is not being registered.
Note:
Ignitions running a multi-spark setup (i.e. MSD 6AL) must use the provided tach
signal from the ignition box.
5.1.1
Enable/Disable RPM
Enabling the RPM channel will allow you to display the channel on the
LM-2 and log it on the SD memory card. Disabling the channel will do the exact
opposite.
1. Press and hold the
Mode
button to go into the Configuration Menu Screen.
2. Select
RPM
and press the
Enter
button.
3. You will not have the option to
Enable/Disable RPM
.
5.1.2
Configure RPM
1. Press and hold the Mode button to go into the Configuration Menu Screen
2. Select
RPM
and press the
Enter
button.
3. Select
Configure RPM
and press the
Enter
button.
4. You will now have the option of selecting the Tach input source, use the arrows
to change the selection. 0 is the input from the Analog Cable, 1 is the input from
the Inductive Clamp. Press
Enter
.
