Firstech, LLC. COMPUSTAR CM3000 User Manual
Page 8
Firstech, LLC. Technical Data (CM3000)
8
Tach Learning Switch:
This is the small black button on the side of the brain used to program
tach. Once you have found the correct wire simply press this button
while the vehicle is running and the siren will chirp once to confirm that
the tach is learned. If the Siren chirps three times the tach source is not
valid. Refer to page #5.
Dip Switches:
Switch #1: This is used to set either Tach or Alternator mode. If the
switch is set to the ON position the unit is set to Tach. If the switch is
set to the OFF position then the unit is set for Alternator sensing.
Switch #2: This is used for setting run time. If the switch is set to the
OFF position then the run time is set for 15 min for gas engines or 25
min for diesel engines. If set to the ON position then the run time is set
to 25 min for gas engines or 45 min for diesel engines.
Jumper Wire:
This jumper is connected when you receive the brain. While the jumper
is connected the module is set for manual transmission mode. When
installing on automatic transmissions the jumper must be cut. Please
note: if a unit with a cut jumper is installed on a manual transmission
the warranty will be void and Firstech will have no liability.
In conclusion, if you should have any additional questions do not
hesitate to contact our technical support staff. We can be contacted toll
free at 888-820-3690.
Best regards,
Technical Support Staff
Firstech, LLC.