31
30
DETAILS ON SETUP MODE ITEMS (cont’d)
19 TRIGGER
Most users won’t need to adjust this setting.
This sets the G-Force criteria to start timed runs. The
default is .10 G, meaning that the timer starts count-
ing when it detects acceleration of .10G. Lower set-
tings may cause false triggering due to vibration of
the car. If your car has significant vibration from the
engine, you may need to increase the trigger criteria
to eliminate false triggering of the timer.
20 CLEAR USER CALIBRATION
Most users won’t need to use this command.
This can be used to confirm the unit’s accuracy.
1
In the Setup Mode:
• Change the Pitch to 0.0
• Change the Roll to 0.0
• Clear the User Calibration
2
Go to G-Meter mode, Friction Circle display
3
DO NOT PRESS THE CALIBRATE BUTTON
4
Hold the Performance Computer level with the
display facing up. The unit should read very close
to 1.00G
5
Hold the Performance Computer with its right side
down and left side facing up. The unit should read
very close to 1.00G.
6
Then for normal operation, use the Setup Mode
to reset Pitch to 2.0 and Roll to 3.0
21 DATALOGGER
Most users won’t need to adjust this setting.
You can enable a special mode that allows saving a
single 5 minute log of acceleration in memory, for
download to your computer or Palm (you’ll need the
optional software and cable). Here’s how it works.
1
Change this Setup item to “DataLogger On”
2
You can still perform conventional timed runs (by
pressing and releasing the TIMED RUN button).
3
To perform a 5 minute Datalogger run, press and
hold the TIMED RUN button on the Performance
Computer.
4
Do not release the button until the display says
“Release button.”
5
Perform your run. The Datalogger will take data
for 5 minutes, or until you end the run by press-
ing the TIMED RUN button again.
6
Download your data to your computer or Palm.
NOTE: When you press the button to begin a Datalogger
run, the 10 standard timed runs in memory are de-
leted (to make room for the 5 minute run).
22 FACTORY DEFAULT
Most users won’t need to use this command.
This lets you restore all of the Setup items to their origi-
nal factory default settings. It also clears all runs in
the “10 Most recent run” memory, and the “Top 10
best times” memory.
Optional accessories
These accessories are included with some models, but
are also available separately.
DOWNLOAD SOFTWARE AND CABLE
You can download detailed data of your runs to your
laptop, PC, or Palm for analysis and graphing. See com-
plete information provided with the software.
PERMANENT MOUNTING BRACKET
Some race sanctioning organizations may require that
your Performance Computer is permanently attached
to your car. This bracket replaces the windshield mount.
USE CARE WHEN INSTALLING THIS BRACKET!
(See our website if you’d like more details)
1
To remove the windshield bracket, carefully un-
screw the large Phillips-head fastener and remove.
2
Carefully remove the long bolt. Take care not to
lose the neoprene O-rings mounted on both sides in
between the bracket and the housing.
3
Insert the bolt through the square hole on the
new bracket, and carefully guide the bolt into the hole
on the right side of the Performance Computer.
BE PATIENT WHILE GUIDING THIS BOLT INTO
PLACE. IT IS POSSIBLE TO DAMAGE THE CIRCUITRY IF
YOU FORCE THE BOLT INTO POSITION.
4
Carefully line up the bracket, making sure the O-
rings are in position. Bend the bracket slightly if nec-
essary. Then carefully insert the Phillips-head fastener,
and tighten. Do not overtighten.
DIRECT-WIRE REMOTE CONTROL CORD
IMPORTANT: This must be installed by someone expe-
rienced with automotive electrical systems. If in doubt,
see your car dealer or a car stereo installer.
The black ground wire is fitted with a lug that must be
attached to an electrical ground. The red-striped wire
for +12 volts is fitted with an insulated 1/4” male
spade lug connector. We have also supplied a special
blue connector that allows you to tap into an existing
wire in your vehicle. This connector can only be used
with wire gauges 14 though 18.
Most users tap into a “switched” circuit of the vehicle
(one which is on when the car is on, and off when the
car is off). To install the blue connector, position it
around the wire you wish to tap into, then squeeze it
with pliers until the halves snap together. Then plug
the insulated connector from the power cord into this
connector.
