Operating the Display Unit
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The utility function keys let you control the following items:
Press this key…
to…
reset the Display Unit and put the unit into self test. (Upon
reset, the Display Unit uploads the rack configuration from
the Display Interface Module.)
adjust the setting for the contrast of the LCD. After
pressing the contrast key, press the Up Arrow or Down
Arrow key to increase or decrease the LCD contrast.
Press the select key when finished.
turn the New Alarm Event LED off.