6
RaceAmerica Model 3850 Timer AC4
SET-UP STEPS - TIMER AC4
The Timer AC4 can be set up in Single (lap-
timer) or dual sensor (autocross Solo 1) configu-
rations and operated in either Manual, Hard-wired
or Wireless modes. Different keypad functions
are available with each mode; this manual will
highlight the differences.
This manual will illustrate the console screen
four line display with each line in a different set
of brackets as follows -
[SEnSor] [ALiGn] [S0-
-0F].
The console keypad utilizes dual function
keys. All functions shown in white function when
pressed; functions shown in yellow require the
*
[SHIFT]
key to be pressed two seconds before the
desired function key is pressed.
Keypad functions for each mode are described
in this manual.
SET-UP STEPS - TIMER T-LINK2
Place the ‘A’ unit at the Start and the ‘B’
unit at the Finish per diagrams (Fig 2, 3, 5 or 6).
Place the ‘Z’ unit in the proximity of the console
and connect to the Serial Port. Positioning the
antenna(s) as high in the air as possible will
optimize performance.
Locate the T-Link2 unit identified as ID Z.
Locate the T-Port connector on the back of the
T-Link2 unit. Connect this T-Port to a 9-pin serial
PC port using the 06-TL02 data communications
cable or connect the T-Port to the Serial Port of
a RaceAmerica Timer using the 06-TT02 Data
Communications cable. Power on ID Z and
observe the LED illuminates alternating between
red and green, then illuminates red if the battery
charge level is below 30% of full charge or green if
charge is above 30% of full charge. If the battery
charge is at minimum charge, the T-Link2 will
power off even if the power switch is ON. If ID
Z is the only T-Link2 powered on, the LED will
quick flash red each time it transmits. When other
T-Link2s are powered on, the LED will flash green
when a wireless signal is received. During normal
operation, the LED on each T-Link2 will flash red
during transmit and flash green each time signal
is received from another T-Link2.
The
*4 CONFIG
menu in Fig 11 is used
to configure the timer for single/dual sensor
operation, minutes/seconds display, sensor lockout
times, printer configuration and timslip header
printing. See the full
CONFIG
properly set
up and aligned on the racing surface, the timer
console will continue to ‘monitor’ the track sensor
at the start line to start the next timer or at the
finish line to stop the next timer (lap-timer uses
only the start beam).
NOTE: once the start or finish line beam
is interrupted, the system imposes a two to nine
second lockout (see CONFIG menu) of that sensor
to allow blowing debris to settle. During the
last second of the lockout, the system performs
alignment testing of the triggered sensor to
determine if the alignment has changed. Failure
of the starting line beam alignment is indicated
by flashing
[StArt] [SEnSor] [test] [fAiLEd]
.
[Finish] [SEnSor] [tESt] [FAiLEd]
would
indicate the finish line alignment has failed testing.
These messages are displayed until another
message updates the Status Display. This feature
helps in early detection and resolution of a low
battery in the Beam Emitters, someone tripped
over a cable, or a sensor has been bumped out of
alignment.
NOTE: Once all four timers are actively
counting, any additional interruption of the start
line beam will not start a new timer until one of the
current timers is stopped by a finish line crossing
or manually stopped via the keypad (Wired only).
Install the antennas on all T-Link2 units. If the
antenna has been bent down for transport, loosen
the antenna slightly and rotate the upper portion
of the antenna into position. Hold the upper
portion of the antenna while tightening the knurled
area on the bottom portion of the antenna. The
antenna should point in the vertical direction and
be off the ground by eight to ten feet for optimal
performance.
