2.
The
SWITCH
is used to display memories and to set values. This is a spring loaded switch
which may be moved upward (increment or next) or downward (decrement or prior).
3.
The
SETUP/CLEAR
switch provides a shortcut for clearing memories, zeroing the incremental
odometer, and switching between modes.
4.
The
HOLD BUTTON
is used to split (freeze) the clock and odometer display. It also is used as an
ENTER button while setting the clock or odometer, etc.
5.
The
BATTERY COVER
is located on the back side of the
ALFA
.
6.
The
DB9 CONNECTOR
provides a single point plug in for power, remote hold, time sync and
Rally-Link ™
communications
.
The three modes, Clock, Odometer and Setup, are accessed by moving the SETUP/CLEAR switch
upward to the SETUP position.
Clock Mode:
“Clock Mode” is generally used for timing checkpoints. In this mode,
the display is divided into two areas – the Time of Day and the Memory.
The time and memory are displayed as either Seconds or
Hundredths of a minute, with precision to either 1/10 of a second,
or 1/1000 of a minute. (You can tell which time mode is being displayed by looking for either a colon
(seconds) or a decimal point (hundredths) between the minutes and seconds display.
The Time of Day runs continuously on the top line of the display, regardless of user input to split the
clock or scan the memories. The HOLD button, when pressed, transfers the present Time of Day into
the next available Memory, and displays this on the bottom line of the display. (The remote HOLD
input may be triggered by an automatic timing line with the same effect.) Up to 99 “splits” may be
stored in the
ALFA
’s memory. Note that once the HOLD has been triggered, there is about a ¼
second delay before it may be triggered again. This prevents the front and rear wheels of a car
passing over an automatic timing line from generating two splits.
Splits are stored in chronological order, and may be reviewed by using the
switch.
This switch is spring loaded, so you simply move it up or down with your finger, and then
let it return automatically to its center position. (Do not force the switch beyond its “click”
position.) Moving the
switch UP will display the next memory position (later time) and
pressing the
switch DOWN displays the previous (earlier) memory. Note that when
the HOLD is pressed, the most recent memory is automatically displayed regardless of user
scanning. Also, if the memory size is exceeded (99 splits), the split is saved in the highest numbered
memory, replacing whatever was previously stored.
The upper right corner of the screen contains a battery voltage indicator. If the indicator is solid, the
ALFA-Club
is running on 12 volt external power. A new 9 volt alkaline battery will always read one
bar low. This is intentional so that if a lighter cord accidentally becomes unplugged, it is obvious by
looking at the display. A short time before the battery is completely dead, the indicator will change to
ALFA-Club Owners Manual
4
Time =10:02.78
M 13 =10:01.34.2
Seconds/Hundredths
indication
Battery Condition
Indicator
