19
RaceAmerica Model 3850 Timer AC4
KEY 6
•
•
To manually stop the next timer, press the
[6]
FINISH key. This is the same function as a car
crossing the finish line and blocking the beam.
This key is enabled when sensors (KEY 2) are
[ON]
and a timer is running. Stoping a timer
indicates
[FiniSh]
in the timer window..
KEY 8
•
•
•
To review the ‘BEST’ time or lap, press and
hold [8].
KEY 9
•
•
•
If a car does not complete the course and their
time is no longer valid, wait until their timer is the
next timer to stop. Pressing the
[9] [DNF]
key will
stop the next timer (same as the car crossing the
finish line) and update the timer with the maximum
elapsed time to indicate the car went Off Course
and the time is invalid. The maximum value can be
configured in [*4] CONFIG; 9:59.999 or 999.999
seconds dependent upon the Timer AC4 display
format ordered are the maximum times.
KEY 0
•
•
•
To review the last four run or lap numbers,
press and hold [0] RUN/LAP.
KEY #
•
•
•
Use the [#] ENTER key to accept input data
and navigate the CONFIG menu.
KEY *1
•
•
•
Pressing *1 will print the current configuration
in he system to a connected serial printer. See
sample. Use *5 CONFIG to make changes.
KEY *2
•
The
[*2]
key is used to toggle hard-wired track
sensors
[-on-]
(enabled)
and
[OFF-]
(disabled).
NOTE: If the T-Link Wireless unit is
connected and powered on, the
[0]
key is disabled.
NOTE: When the sensors are in either mode,
they will not detect any cars crossing the start or
finish line in the other mode.
KEY *4
•
•
•
Press [*4] to enter the CONFIG menu. See
separate Fig. 11 to see all the details of the system
configuration menu.
KEY *5
•
To enter alignment mode, for hard wired
sensors, press the
[*5]
keys on the keypad; sensor
alignment at the start and finish lines indicated by
[-SF-]
displayed. The left dash is the start line and
the right dash is the finish line. The dashes will be
replaced by a number. The sensors are checked
continuously and the display is updated 4 times
a second. If the sensor is aligned, the number
will not change. If the sensor is intermittently
out of alignment or on the edge of alignment, the
corresponding number will count intermittently. If
the sensor is out of alignment, the corresponding
number will count 4 times a second.
KEY *6
•
Pressing
[*6]
on the keypad will cause
connected T-Link units to monitor the RF signal
integrity. The display will show [-rF-]. The
left dash is the start line and the right dash is the
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
