User Manual
Troubleshooting
www.irisbond.com
Page 61
Troubleshooting
PROBLEM: Calibration result is very high.
SOLUTION: We recommend checking the following:
Ensure the eyetracker is below the screen.
Check that your positioning is correct.
During calibration open your eyes fully and look at the center of each point when it stops moving.
Adjust calibration values. For example, repeat the calibration process with a longer display time
per point or with fewer points (9, 5, 1). Increase stimulus to attract greater attention and
concentration from the user by adding sounds or changing the points to pictures.
Check that there are not rays of light directly making contact with the eyetracker.
Clean your glasses to avoid any possible light reflection.
Poor lighting. It is necessary to have sufficient lighting so that pupils are not too dilated.
PROBLEM: Eye detection is not working correctly in the peripheries of the screen.
SOLUTION:
The Irisbond eyetracker is not correctly positioned.
The eyetracker must be situated as close as possible to the lower area of the screen without
obstructing it. You must be positioned according to the guidelines in the section
Positioning
.
PROBLEM: The system’s precision is poor.
SOLUTION:
You may have unknowingly moved into a different position from the time when you did the initial
calibration. Return to the initial position or launch a new calibration process.
PROBLEM: The system does not recognize the Irisbond eyetracker.
SOLUTION:
Check that the USB cable is correctly connected at both the eyetracker and computer ends.
The cable should not be connected to USB ports on the front of computer towers.
Check that you are using the USB cable originally supplied with the Irisbond eyetracker.
Always be careful when using USB extension cables as they can cause this problem also.
PROBLEM: The mouse stops working when you try to install an application in Windows 7
and/or 8.
SOLUTION:
Click using the right button on the PRIMMA icon on the desktop, click “Properties” ->
“Compatibility” and select “Run this program as an administrator”.