G-Tech Pro Competition User Manual - 142

142

G-TECH / Pro Competition User Guide, Release 3.1

Accelerometer Tips

Hold the G-tech as still as possible during the accelerometer 

calibration procedure. You may find that it helps to rest the 

G-tech against something like a table or a wall during the pro-

cedure.

If you hold the G-tech in an incorrect orientation at any point 

during the accelerometer calibration procedure, the G-tech 

will notify you with a message on the screen.

A blinking black rectangle on the display during calibration 

indicates that the G-tech is seeing shaking/movement. Try to 

hold the G-tech as still as possible. If you cannot get the rect-

angle to go away, please call Tesla Technical Support at (310) 

452-0030.

Ensure that you calibrate the accelerometers at two different 

times, as far apart in operating temperature as possible 

(p. 35). Our recommended calibration procedure for acceler-

ometers is:

1. Put the G-tech into Configuration Mode and then 

power it off.

2. Let the G-tech sit powered off for at least 12 hours at 

room temperature.

3. Power on the G-tech and immediately perform a cali-

bration (p. 28). This would be the “cold” calibration.

4. Leave the G-tech powered on for at least 1 hour so that 

it reaches full operating temperature. 

5. Perform a second accelerometer calibration. This would 

be the “warm” calibration.

After performing the “cold” and “warm” calibrations, go to 

the G-tech’s X-Y-Z Gs screen (p. 143). While holding the G-

tech very still, ensure that the “Mag” value is always between 

0.995G and 1.005G, at all temperatures and orientations.

Note:

The “Mag” value will always fluctuate a little due to 

vibrations, etc. As long as the displayed value is within this range, 

the calibration is fine.

If the “Mag” value is not always between 0.995G and 1.005G:

•

Erase the accelerometer calibration data (p. 144)

•

Re-calibrate your accelerometers at 2 different tempera-

tures (p. 28, p. 35)

Note: DO NOT CALIBRATE ACCELEROMETERS or ERASE ACCELEROMETER CALIBERATION 

on G-tech units which were shipped after August 2003.  They have already been calibrated in the 

factory.  Older G-techs will automatically request calibration.  If you are unsure contact tech support.