17 System Test Functions
System test functions can be used to test selected hardware functions of the Level Plus monitor.
Available test functions include:
KEYPAD/LED/BEEP TEST
LCD DISPLAY TEST
RELAY OUTPUT TEST
DDA COM PORT TEST
HOST COM PORT TEST
ANALOG OUTPUT TEST
The first test function is used to test the keypad, the red alarm LED, the audible beeper and the
associated control circuitry.
Press the MODE key to enter the selected test function or press ENTER to continue to the next
test function.
Press any key on the keypad to display the registered key value on the LCD. After each key is
pressed the red LED will light and the sonalert beeper will beep. Press each key to verify com-
plete keypad operation. Press the ENTER key last because this key also ends the
keypad/led/beeper test.
The LCD DISPLAY TEST is used to test the basic operation of the LCD front panel display and
associated LCD control circuitry. Press the MODE key to enter the selected test function or press
ENTER to continue to the next test function.
After the MODE key is pressed, all character fields on the LCD will be turned off. Verify that each
character and all character pixels are off. Press any key and all character fields on the LCD will be
lit. Verify that each character field and all character pixels are lit. Press any key again to end the
LCD test.
LCD DISPLAY TEST
‘Mode’ TO TEST
‘Enter’ TO CONTINUE
KEYPAD/LED/BEEP TEST
PRESS ANY KEY
‘Enter’ TO CONTINUE
KEYPAD/LED/BEEP TEST
‘Mode’ TO TEST
‘Enter’ TO CONTINUE
67
To Next Page
Loading...
Need help?
General