ABACUS
TM
9 & 12 CYCLE COMPUTERS
ITEM CHECK LIST
Please check that all items have been included with the
computer before starting.
Abacus cycle computer
Sensor
Nylon ties x4
Bracket
Rubber Contour
Grommet
Speed Magnet
BRACKET MOUNTING
Rubber Contour
Grommet
Use the nylon ties to mount the bracket to handlebar
or stem.
Place the cycle computer on the bracket and secure it
turning clockwise.
SPEED SENSOR MOUNTING
Mount the sensor with nylon ties on the front fork.
MAGNET MOUNTING
Using the included screw, secure the magnet, facing
the speed sensor, to a spoke on the front wheel. To
work properly, the magnet must be within 2-3mm of
the speed sensor.
Warning: Make sure the speed sensor is tightened down
properly before riding, as to not interfere with
the spokes.
DETERMINING WHEEL SIZE
Wheel circumference
For nominal sizing, please refer
to the wheel size chart in these
instructions.
MAIN DISPLAY KEY FUNCTIONS
Current speed
compared to
average speed
(above/below)
Bike 1 or Bike 2
AM/PM indicator
Sub display
Mode key
Current speed Speed scale symbol
Low battery
indicator
Set Key
MODE CHANGE
Press the Mode key quickly to change.
CLK MODE (Clock Mode)
12/24H and Time switch
TM MODE (Trip Time Mode)
AVS MODE (Average Speed Mode)
MXS MODE (Max Speed Mode)
DST MODE (Distance Mode)
ODO1 Mode (Odometer 1 Mode) )(Abacus 11 only)
ODO2 Mode (Odometer 2 Mode) (Abacus 11 only)
ODO Mode (Total ODO Mode)
KCal Mode (Calories Mode)
CLOCK MODE
In clock mode, press and hold “SET” key for 3 second.
Press “SET” key once to adjust 12/24 hours.
Pres “MODE” key to adjust time (hour, minute,
and second.)
Hold “mode” key for 3 seconds to go back to clock
mode once the setting in nished.
TM MODE (TRIP TIME MODE)
Resetting all data:
Press and hold “SET” key for 3 seconds, all results will
return to zero except for the odometer.
AVS MODE (AVERAGE SPEED MODE)
The average speed from the
beginning onwards.
MXS MODE (MAXIMUM SPEED MODE)
The maximum speed from the
beginning onwards
Note: If the time or distance is over the
max value (29 hr: 59 min: 59 sec or
distance: 999.99km), it will not be able
to measure correct average speed and
will show “Err” on the display. Once the
time and distance value has been reset,
the average speed will show normally.
DST MODE (DISTANCE MODE)
The trip distance accumulated from the
beginning onwards.
ODO1 MODE
The ODO accumulated from bike 1.
ODO2 MODE
The ODO accumulated from bike 2.
ODO (TOTAL ODOMETER MODE)
Total odometer accumulated from the beginning
onwards. Note: Odometer mode will return to zero after
changing new battery.
HOW TO CHANGE SPEED SCALE, BIKE 1 &
BIKE 2, WHEEL SETTINGS AND ODO1
Under ODO Mode, press “SET” key for 3 seconds to go
to setting.
Press “SET” key again to select km/h or mile/h, press
“MODE” key to go to bike1 and bike 2 setting, then
press “SET” key to select bike 1 or bike 2.
Press “MODE” key to go to wheel settings. Input
the correct wheel size by pressing “SET” key. The
computer accepts a range of wheel sizes from 100mm
to 2,999mm.
For users to input previous
accumulated ODO after new battery,
press “MODE” key to go to ODO1 setting. Input the
previous ODO by pressing “SET” key. The range of
ODO1 is from 1 to 99999.
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