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RaceAmerica Model 3850 Timer AC4
CONSOLE FEATURES
Fig 7 - The Timer AC4 Console contains a four line display for display of lap/run times, the cur-
rent mode of operation of the timer, comfirms detection of a car by the Track Sensors, Emitter/Sen-
sor alignment and used for configuration menu promps and selections.
Keypad
Timer Displays
Connectors on bottom
POWER ON/SELF-TEST
Connecting the 12VDC power source places
the RaceAmerica Timer AC4 into a self-test of the
microprocessor circuitry and LED displays (Light
Emitting Diode). This is an internal test as well as
a visual check of each display. The four line dis-
play sequences an [8] digit through each segment
of all lines. The four line display then sequences
through the product number and the code revision
level coned within the timer.
At the end of the power-up sequence, the
system automatically detects which mode is se-
lected making the available displays and functions
available.
When the sensor(s) are hard wired and ON,
one column of dots at the right edge of each dis-
play line will flash periodically if they are properly
aligned.
When the ‘Z’ unit is ON and connected to
the timer, one column of dots at the right edge of
each display line will double flash periodically.
SYSTEM SETTINGS
Press
*1 REPORT
to print the current
systems setup to a connected printer. This is very
helpful to quickly see if the system is configured
as desired.
CONFIGURATION MENU
The Timer AC4 Model 3850 offers flexibility
in configuration and setup retention. Use the [*4]
CONFIG menu (Fig. 11) to select how the Printer
Port will be used (it can be configured as a Printer
port (Print) or RS232 Display port (diSP)). When
configured as a display port, other print settings are
ignored. To configure a printer to print timeslips
and a report of the configuration (*1 REPORT),
configure race parameters - single or dual sensor
(Laptimer or Start/Finish layouts). Select time
display format as sss.fff (seconds and fractions or
m:ss.fff (minutes, seconds and fractions); select a
maximum time for cars not finishing or cars taking
a longer time than allowed; select sensor lockout
times for start and finish sensors. Lockout times