When touching the target, make sure you

Using the Software

3.Click Linearize. This will bring up, one at a time, 25 linearization targets on the screen.

Note

If you press Escape or do not touch the sensor within 20 seconds, the system automat- ically cancels the linearization process with no change to the current settings.

4.Touch the sensor and position your fingertip to completely cover the green target.

When touching the target, make sure you:

•Face the display directly.

•Perform the linearization in the position (sitting or standing) you expect to use the touch sensor.

•Touch the target firmly and precisely with your fingertip. Be careful to keep your other fingers away from the sensor as you touch the target. Hold a steady touch over the target until you hear a beep or until the target turns red.

5.Repeat these instructions until all 25 targets have been touched.

•Face the display directly.

A dialog will appear asking if you wish to “Test, Accept, or Cancel”.

•If you select Accept, then the new calibration settings are automatically accepted.

•If you select Cancel, the original settings will be restored without change.

•If you select Test, the 25 targets will now be replaced with a set of 16 targets used to verify the linearization performed in steps 1 through 5.

These targets are yellow to begin with. If you successfully touch the target, it turns green. If you are off, it turns red and returns a percentage error number. If the linearization is not within acceptable tolerances, you should perform the linearization process again.

Repeat the previous process for each of these targets. This process automatically returns to the control panel once complete. If you are using a pen stylus, repeat the linearization procedure with the pen.

To test the accuracy of the linearization process, use the Draw Test program (found on the Tools Tab) to draw some lines on the screen. Check that they are smooth, straight, and thin. You do not want lines to look keystoned or curved.

To exit this program at any time during the process, press Escape.

Touch Screen Frequency

Note

This option applies to capacitive EX and CX-series controllers.

From the Tools tab, you can choose the Advanced Options button. From the Advanced Options dialog, select Enable Frequency Selection to activate this option on the Control- ler tab if you are using a capacitive EX-based controller.

This option adjusts the operating frequency of the touch controller. In general, you will not need to adjust the Touch Screen Frequency. However, if you are experiencing problems with a jittery cursor, ragged lines, or random touch points, you may want to run the Enable Frequency Selection option.

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