AEXX-539 SERIES STAND-ALONE DAY COUNTER DISPLAY
REV 10/10/13
APPLIED TECHNICAL SYSTEMS
PAGE 4
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OPERATION
Before applying power, be sure all wiring is completed. Apply power to the unit. The displays will
rotate during the power on self-test and then a version number will appear for a few seconds.
The Display will show all 0”s for the Day Count. If a charged battery is installed, the self-test will
be bypassed and the Display will show the previously programmed Day Count in progress.
PRESETTING THE DAY COUNT AND TIME OF DAY
Before you preset the Display, set the Up/Down as desired. Up counts up Days, Down counts
down Days.
To preset the Display set the SET/RUN switch to the SET position. The first digit will start
flashing. Using the INCREMENT switch, set the desired value for the first digit of the Day Count,
then press ENTER. The next digit will then start to flash. Set it to the desired value in the same
manner as you did the first digit. Continue this procedure for the remaining Day Count digits.
After the last Day Count digit is entered the Display will prompt for the time of day. The hours
digits will start to flash.
Time must be entered using 24-Hour format (sometimes called military time). Using the
INCREMENT switch, set the desired value for the hours, then press ENTER. The minutes’ digits
will now be flashing. Set the desired minutes the same way, and then press ENTER. The
display will then flash dONE. Set the SET/RUN switch back to the RUN position. The internal
clock will begin keeping time at the instant you set the switch back to run. The Display will show
the Day Count, just entered.
Built-in Controls - Top panel of enclosure
