20
RaceAmerica Model 3850 Timer AC4
finish line. The dashes on the display will begin
to count up as signals are received from the T-
Link units on the track. 0 displayed represents
0%, 1 represents 10%, 2 represents 20% etc.
until a dash appears representing 100%. This is
an indication of the consistency of the RF signal
integrity. If this number jumps around, there is
a high level of interference in the area. If the
number remains high, the RF signal integrity is
very good. If the number remains low, the RF
signal is somewhat weak. The position of the T-
Links and their antennas can be moved to optimize
the RF Integrity level. This key is enabled when
[t-Ln]
is displayed in the Status Display.
KEY *7
•
Pressing
[*7]
on the keypad will halt all
currently counting timers. This is convenient
when something happens on the track requiring a
restart of all cars being actively timed. The next
run will be assigned the next Run Number when
the start beam is interrupted.
KEY *0
•
•
•
Pressing the
[*0]
key halts all timers, resets
all four timers back to
0.000
seconds, clears the
run numbers, and resets the next run number to
01
. This function is used to completely reset the
Timer AC4 back to its initial startup point.
KEY *8
•
•
•
Pressing *8 will RESTART the timer and reset
the run/lap numbers and best times.
KEY *9
•
Pressing *9 will display T-Link battery levels
as follows: [-bAtt-] [A---X] [b---X] [Z---X] where
‘X’ is the relative charge (1 to 9 plus - (100%)).
If you press *9 when no T-Links are not connect-
ed, the display will show[no rF] [SEnSor] [on].
STATUS DISPLAY MESSAGES
During normal operation, messages will
appear in the Status Display. These messages
indicate status, mode of operation, or events
occurring on the race track. Many of these
messages are covered elsewhere in this manual and
are alphabetically summarized in the following
section as a reference:
Algn -SF-
When entering Alignment Mode, these
messages will appear in sequence to indicate the
alignment of the Track Sensors and Beam Emitters
will be continuously monitored and the results
displayed.
on
This display indicates the AC4 is operating
in the hard wired mode and track sensors are
enabled.
no ALiGn SEnSor on
This message appears if *5 is pressed when the
sensor(s) are ON. Press *2 to turn the sensor(s)
OFF so alignment can be checked.
CLr
This message confirms all timers have been
stopped, reset to 0.000 seconds, and run numbers
have been reset to start with 01. The Timer AC4
is ready for the next run.
Cont
When a timer is restored after being stopped
by mistake, this message appears momentarily to
confirm the timer is being restarted
End
This message indicates the stopping of a timer.
It will appear every time the finish line beam is
interrupted by a car or the manual stop key is
pressed on the keypad. The timer in the Timer
