Application Note
MicroWizard FastTrack Timers and Full Motion Gates

MicroWizard timers reset the elapsed time reading to zero if the start gate
switch is closed prior to the car crossing the finish line. This can cause a
problem if power to the rotary solenoid is ended before the cars finish and
you are sensing the gate movement with a microswitch. For example, the
green light of the New Directions Light Tree lasts only 3.0 seconds, which in
most cases is shorter that a typical race.

If you are using the MicroWizard LazerGate start detection, there is no problem
because the start of the race is sensed and immediately latched into the timer.
The signal persists until it is reset by pressing a button on the LazerGate for
the next race.

If you intend to use GrandPrix Race Manager software to operate the start gate,
without using the light tree, there is also no problem because you can set the
duration of the start signal high enough that all cars will finish before the gate
closes.

But if you wish to use our light tree and one of our full motion start gates with
your MicroWizard finish line and microswitch start gate, please call to discuss.
We have two solutions to the potential problem described above.

John at 703-319-0840