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Tools & Setup
4.2.4 Touch Screen
The test checks proper operation of the touch screen (Figure 4-15). It allows you to test the
screen (by pressing Test) or perform a quick calibration followed by a test (by pressing
Calibrate). Both involve touching targets on the screen in the allotted time.
Figure 4-15: Touch Screen test on the left, Touch Screen calibration test on the right
4.2.5 GPR Sensor
This test checks proper operation of the GPR sensor, including the amplitude of the pulse.
Once the cart is tipped backwards and start is pressed, it will conduct the test (Figure 4-16). If
there are any irregularities, the test will indicate failure. However, if the test passes, it doesn't
mean the system is working perfectly. A test line should be setup as a baseline, and results
compared to the test line to validate proper performance and operation
(Section
13.6).
Figure 4-16: Sensor Test
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