ALEX (#1000-CA) HAKARUNNJER LAP COUNTER SET UP (CA)
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a) Counting Time
Vehicle approach angle differences on the track.
This system is able lap times in 0.01sec units. However, an error of less than +/-0.02sec may occur in some cases described below:
The Hakarunjer lap-counting unit (receiver) uses Infrared (IR) light to communicate with the vehicle(s) transmitting unit. If a vehicle passes the counting unit on a trajectory other than moderately paarallel (perpendicularly or at a slant along the track passing the receiver) an error may occur.
If the system detects an infrared ray in the ambient sunlight; or. when multiple vechicles using the system pass the counting unit (receiver) at the same time, the system may try to read a vehicle's ID number again (or the system may fail to detect a vehicle's IR signal). Also, IR reflections may cause detection errors.
b) The Number Of Rounds
The system memory can hold lap times of up to 60 rounds after the system is powered down.
c) Measuring Time
The system can measure lap times of up to 11 minutes (655.35 seconds).
d) The Lap Time Indications:
The best lap -- after a run and return to the pit.
Every lap time per round while turning laps.
The passage of the after a start.
The counting unit has a Liquid Crystal Display (LCD). The LCD will display such lap time information as listed below:
e)The confirming sound
The counting unit (receiver) has a built-in buzzer. During operation and when a vehicle passes the receiver, the buzzer will sound off with a pi-pi. If a current laptime is faster than your target time, the buzzer will sound off with a pilo-pilo-pilo. You can roughly determine lap time progress audibly during operation with these function.
f)Minimum Lap Time Intervals
The system can be set up for minimum lap time of 5 seconds to 30 seconds to minimize a faail to detect error or a possible double detection. For instance, accidental vehicle spins near the receiving unit.
g)Start methods include two different modes:
Stagger: When a vehicle passes the receiver on a running start, the counter will start timing automatically.
Count Down Signal Start: The unit will sound the buzzer for every second, sound off with a louder pi-pi-0pi-piii during the last seconds, then start the counter, for a standing start as in the usual finals.
h)The Receiver Distance
In-door track locations: approximately 10 meters (32 feet).
Out-door track locations: approximately 5 meters (16 feet) under direct sunlight.