TFA 42.5003 User manual

Instruction Kat.No. 42.5003
Features
- Speedometer
- Odometer
- Tripmeter
- Auto-timer/Stopwatch
- 24-hour clock
- Average speed
- Maximum speed
- Speed Comparison
- Scan
- Wireless
- Km/Mile selection
- Auto/Manual timer selection
- Power saving function
MAIN COMPONENTS
Mounting with CTx & CRx, the unit will function as a wireless cycle computer

ACCESSORIES
ATTACHING THE RECEIVER UNIT TO THE HANDLEBAR
Step 1 : Put the Unit onto the Handlebar
Step 2 : Mounting Shoes
Attach the mounting shoes to the handlebar using the bracket screw
provided. If the clamp closes completely, or the bracket slips on the
handlebar, rubber shims are included to provide secure fit.

MAGNET MOUNTING
ATTACH THE MAGNET TO THE LEFT SIDE FRONT WHEEL SPOKE WITH THE
SCREW PROVIDED. OVER TIGHTENING THE SCREW CAN STRIP THE
THREADS. SO USE CAUTION.
POSITION THE TRANSMITTER AND MAGNET AS SHOWN, MAKE SURE
THE ARC OF THE MAGNET INTERSECTS THE TRANSMITTER'S 'SENSOR'
MARKING WITH , 2MM CLEARANCE, ADJUSTING THE DESIRED GAP BY
MOVING BOTH THE MAGNET AND THE TRANSMITTER UP AND DOWN.
Battery Installation
Remove the battery cover with a coin. InstaIl the battery with the positive ( + ) side
facing the cover and replace the cover.

Initial Setting Mode (System Reset)
The cyclocomputer can be reset anytime by depressing both buttons together over 2
seconds or after battery installation. At reset, the screen shows all segments ON for 2
seconds and data in all modes are CLEARED instantly. The initial setting mode is
then entered.
KM/MILE SELECTION
The screen shows flashing "M/H" (mile per hour). Press the left button to change
from "M/H" to "KM/H" (kilometer per hour) or vice versa. Press the right button to
confirm the selection.
AUTO/MANUAL TIMER SELECTION
The screen shows" AUTO" which indicates the timer operating in Auto mode (Auto-
timer). Press the left button to change from " AUTO" to Manual mode (Stopwatch) or
vice versa. Press the right button to confirm the selection. If Auto-timer is operated,
"AT" will be shown on the screen after the initial setting.
WHEEL SIZE INPUT
The screen shows a four-digit wheel size (wheel circumference in mm), with
the last digit flashing. Press the left button to advance the digit or depress it
over 2 seconds for fast advance. Press the right button to confirm the digit
setting and switch to the next digit setting. The input is finished after the first
digit has been confirmed. The wheel sire is ranging from 0000 to 2999mm
with a default value of 2124.
Wheel Size Reference Table
Wheel Type Size (mm) Wheel Type Size (mm)
18 inch 1436 ATB 26x 2,0 (850B) 2099
20x1.75 1564 700 Tubuler 2117
20 inch 1596 700x 20C 2092
22inch 1759 700x 25C 2124
ATB 24x 1.75 1888 700x 28C 2136
24inch 1916 27 inch (700x 32C) 2155
24x 1318 1942 700x 35C 2164
ATB 26x 1.40 1995 700x 38C 2174
ATB26x1.50 2030 27,5inch 2193
ATB26x1.75 2045 28inch (700B) 2234
26 inch (650A) 2073 28.6 inch 2281
Cyclocomputer Functions
The cyclocomputer has Speedometer shown on the top line and one of six functional
modes shown on the bottom line at a time, which are Odometer, Tripmeter, Timer,
Clock, Average speed and Maximum speed. To change mode, simply press the right
button after exiting the initial setting mode. To check for proper speed function and
sensor alignment, spin the front wheel.
Power saving function
Power saving function is activated whenever there is no further key input and wheel
spinning for around 4 minutes. At this time, the clock is shown on the screen. Press
any button or spin the wheel to return to normal state.

Speedometer
Speedometer is shown on the top line all the time. The current speed updated every
3 seconds is displayed. (Note: The speedometer has a range of 0.0 to 99.9 km/h or
mile/h with a resolution of 0.1 km/h or mile/h.)
Odometer mode
Odometer mode is indicated by "ODO". The accumulated distance travelled in every
trip since the last system reset is displayed. To change the timer operating mode or
wheel size, depress the left button over 2 seconds. (Note: The odometer has a range
of 0.0 to 9999.9 km or mile and a reset value of 0.0. It overflows to 0.0.)
Tripmeter mode
Tripmeter mode is indicated by "DIS". The distance traveled since the last reset is
displayed. It counts the distance only when the timer is running. To reset the
tripmeter, depress the left button over 2 seconds. At the same time, the timer, the
average speed and the maximum speed are also reset. (Note: The tripmeter has a
range of 0.00 to 999.99 km or mile and a reset value of 0.00. It overflows to 0.00 and
resets the timer, the average speed and the maximum speed.)
Timer mode
Timer mode is indicated by "TM". The time kept since the last reset is displayed.
When operated as Auto-timer, it starts/stops automatically by motion of bicycle.
When operated as Stopwatch, it starts/stops by pressing the left button. To reset the
timer, depress the left button over 2 seconds. At the same time, the tripmeter, the
average speed and the maximum speed are also reset. (Note: The timer has a range
from 0:00:00 to 9:59:59 and a reset value of 0:00:00. It overflows to 0:00:00 and
resets the tripmeter, the average speed and the maximum speed.)

Clock mode
Clock mode is indicated by "CLK". The 24-hour clock is displayed. To set the clock,
depress the left button over 2 seconds and then release it. Press the left button again
to advance the flashing minute or depress it over 2 second for fast advance. Press
the right button to confirm the minute set and repeat the procedures to set hour.
Press the right button again to confirm the hour set and the clock setting is finished.
Average Speed mode
Average Speed mode is indicated by " AVS". The average speed since the last reset
is displayed. It is updated every ten-second count of the timer. The average speed is
reset to 0.0 km/h or mile/h once the tripmeter or timer is reset or overflows.
(Note: The average speed has a range of 0.0 to 99.9 km/h or mile/h and a reset
value of 0.0)
When the cycling speed is slow (about 10 km/h or below), the LCD sometimes
displays "00", because the sensor is less sensitive at very low speed. The display
reverts to the correct speed again. *See Important Note at back of manual *
Maximum Speed mode
Maximum Speed mode is indicated by "MXs". The maximum speed since the last
reset is displayed. The maximum speed is reset once the timer or the tripmeter is
reset or overflows.
(Note: The maximum speed has a range of 0.0 to 99.9 krn/h or rnile/h and a
reset value of 0.0.)

Different Speed mode
Different Speed mode is indicated by "DIF". Push mode key (right key) to reach this function.
The lower display will show the different speed between the current speed and Ibe average
speed (+/-).
(Note: The Different speed has a range of -150.0 to 150.0 km/h (or mile/h)
and a rest value of 0.0)
Scan function
Scan function mode is indicated by "SCAN". Push mode key (right key) to reach this function
after Different Speed function. SCAN icon will show and the lower display will show values of
ODO, DIS, TM, CLK, AVS, MXS and DIF in sequence change every 6 seconds.
Trouble Shooting
TROUBLE POSSIBLE CAUSE
Speedometer always reads Improper magnet/sensor alignment, check
zero when cycling. magnet/sensor mounting.
Slow display response. The cyclocomputer has been operating at a
temperature below 0°C, it returns to normal
state when temperature rises.
LCD is black. The cyclocomputer has been exposed to the
sun for a long time, place it in the shade to
return to normal state.
Display readout fades. Poor battery contacts or dead battery, check
battery installation or replace battery.
Important note
Before starting a new trip, the user can clear the values of the previous trip by pushing the
MODE switch until the DIS icon is shown. Push down the Mode switch (left switch) and hold
until the DIS value is reset to zero. The value of AVS at this stage can be ignored. As the
user embark on a new cycling trip, all new values of DIS, DIP, TM, AVS and MXS will be
calculated and displayed.
Safety Precautions
- PIease dispose the BATTERY UNIT in an environmentally friendly manner in accordance
with the relevant legislation.
- Replace only with the same or equivalent type of battery recommended by the
manufacturer.
- Not to be exposed dripping or splashing.