Daktronics TI-2022 Portable LED Timer - Manual (Page 17)

Controls and Timing Functions 11
5. Qualifying Timer. This program utilizes one photocell plugged into the START to
qualify oval track. Timing range is from 0 to 99.99 seconds.
Pressing the RESET switch will set the display to 0.0 seconds and clear the best time. With
a photocell connected to the START input, the first car that passes through the photocell
will start the clock counting. The timer will then ignore the photocell for 3 seconds to
ensure that the car has completely passed through the Start/Finish line. The next time the
car passes through the photocell, the clock will display the current lap time for 10
seconds. Again, the clock will ignore the photocell for 3 seconds to insure that the car has
passed completely through the Start/Finish line. The internal clock was also restarted at 0
and is counting the time for the next lap. After the previous lap has displayed for 10
seconds, the digits will show the new lap time. The next time a car passes through the
photocells, the time will freeze for 10 seconds and repeat the cycle. This may be repeated
for however many qualifying laps that a car will make.
When the car has completed its qualifying run, press the STOP switch on the side of the
display, and the best lap time will be displayed on the digits. The qualifying sequence for
the next driver will start the next time a car passes through the photocells.
6. Flop Clock. This mode counts up in 1-second increments to 9,999, rolls over to 0, and
continues counting.
7. Lap Counter. This program uses the start switch to increment the display by one from 1
to 9,999. The stop switch decrements the count by one.
8. 12-Hour Time of Day (TOD). This program displays the time of day using a 12-hour
clock.
9. 24-Hour Time of Day. This program displays time of day using the 24-hour military
clock.
Note: An All Sport ® control console or an OmniSport ® timing console can be connected to the
TI-2022 to control it, but the TI-2022 system is then limited to being an output device rather
than the self-contained timing system for which it was designed.