
MATRIX 400™ REFERENCE MANUAL 
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STEP 9 – TEST MODE Use a code suitable to your application to test the reading performance of the system. 
1. Enter the Test function by pressing and holding the X-PRESS™ push button until the 
Test LED is on. 
2.  Release the button to enter the Test function. 
Once entered, the Bar Graph on the five LEDs is activated and if the reader starts 
reading codes the Bar-Graph shows the Good Read Rate. In case of no read condition, 
only the STATUS LED is on and blinks. 
READY
green 
green 
y
ellow 
y
ellow 
red 
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Figure 17 – X-PRESS™ Interface: Test Function 
3.  To exit the Test, press the X-PRESS™ push button once. 
NOTE 
By default, the Test exits automatically after three minutes. 
The Bar Graph has the following meaning: 
READY
 95% 
 75% 
 60% 
 40% 
 20% 
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