Installation ST500 Tach-Timer
© Stack Limited
16
Trackside I.R. Beacon (optional)
There must be only one Stack trackside beacon used on the track. Do not
place your beacon half way around the track because this may inconvenience
other users of Stack equipment.
If you have fitted the optional lap timing sensor to your vehicle, you will
need to use the trackside IR beacon to trigger the sensor for each lap.
1 Choose a suitable location for the beacon:
• Install the beacon as close as possible to the start-finish line, and at
least 4 metres (12 feet) from other types of beacon.
• Set the height of the beacon to be level with the lap timing sensor
on your vehicle. Set the beacon level so that it emits a horizontal
beam.
• Choose a position for the beacon between 2 and 30 metres (6 to
95 feet) from the vehicle as it passes within each lap.
• Avoid locating the beacon where the sun is directly behind it. This
is because the lap-timing sensor will be unable to distinguish the
signal from the beacon against the intense infra-red background
signal from the sun.
• If you intend to use the beacon for extended periods in very hot,
sunny conditions, protect it from direct sunlight.
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