Halfords Bicycle Computer Owner's Manual

wireless computer
owner’s manual

80mm x 110mm

Black

2

Contents

Package Contents ....................................... 3

Using Your Computer ...................................

4

1.Main Unit Setup ........................................................ 4

1. Initiation of Main Unit

2. Basic Display Modes

2. Overview of Button Operation............................... 5

1. In Data Setting Mode

2. In General Mode

3. In Altitude Calibration Mode

3. Wheel Circumference Measurement .................. 8

4. Basic Setting & Operation ...................................10

5. General Display .....................................................14

6. Battery Replacement ............................................15

7. General Mode Display ..........................................16

8. About Altitude Calibration ...................................17

9. Temperature Display ............................................18

10. Bike 1 /Bike 2 Selection ......................................18

11. Data Reset ............................................................19

12. EL Backlight .........................................................20

13. Sleep Mode ..........................................................20

Functions ..................................................... 21

Technical Specifi cation s ............................

27

General Specifications ................................

29

Precautions .................................................

30

Trouble Shoot ing ........................................

31

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Package Contents

1. MAIN UNIT

Main unit
3V battery (CR2032)

2. BRACKET SET

Bracket for handlebar or stem
Bracket base
Cable ties

3. SPEED TRANSMITTER SET

Speed transmitter
3V battery (CR2032)
Transmitter rubber pad
Cable ties
Magnet set
O-ring

4. CADENCE TRANSMITTER SET

Cadence transmitter
3V battery (CR2032)
Transmitter rubber pad
Cable ties
Magnet set
O-ring

1.The installation of the accessories is on the separate sheet.

2.The accessories or parts are s ubject to c hange wit ho ut pr ior

notice.

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Using Your Computer

1.Main Unit Setup

1. Initiation of Main Unit:

1. Before no rmal operation, in itiate the main unit and select units
as stated below:
1-1. Push buttons A, B, C simultaneously for 3 seconds, and

you'll see the auto-testing display.

1-2. Press any button to quit auto-testing display, and then

select units of temperature, altitude and distance.

1-3. Press the C button to quit unit selection and enter

General Mode.

2. Timing to initiate the main unit and select units is as listed

below:
2-1. The first time when you use the computer
2-2. When the display becomes irregular due to improper use
2-3. Whenever you change the battery

2. Basic Display Modes:

After initiating the computer, selecting units, you should enter
Data Setting Mode to set some basic data like wheel
circumference and clock time etc. Then go to General Mode for
normal operation.
Before riding, you should enter Altitude Calibration Mode to
calibrate the current altitude value.

The following is the General Mode Display during riding for
reference:

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2. Overview of Button Operation

This computer includes three major display modes as shown below:
Data Setting Mode, General Mode, and Altitude Calibration Mode.
In this section, you'll learn the function of each button in each mode.
The following text lets you know how to use the buttons to operate
the computer step by step.

1. In Data Setting Mode:

Tips: 1. The buttons you'll use in Data Setting Mode: A, B, C.

2. Button for entering or quitting Data Setting Mode: C

3. Butto n for ch an gi n g the v al u e o f a flic ker i n g di git: A

4. Button for switching to the next digit or setting: B

Butt on A:

1. Press the A button to change the value of a

flickering digit in a loop.

2. If you keep pushing the A button, the digit value will
automatically increase.

3.Release the A button when the required value of a
digit is displayed.

Butt on B: 1. Press the B button to move to the next digit in a

loop.

2. Push the B button for 1 second to move to the next

setting.

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Butt on C: 1. In General Mode, press the C button to enter Data

Setting Mode.

2.In Data Setting Mode, press the C button to exit and

return to General Mode.

Butt on D: No function.

How do you enter Data Setting Mode after initiating the computer?

After initiating the computer by pressing the A, B, C buttons at the same

time for 3 seconds , pr es s any button to quit auto-testing display, and
then select units. After unit selection, press the B button for 2 sec onds
to enter Dat a S et ti n g M ode.

2. In General Mode:

Tips:

1. The buttons you'll use in General Mode: A, B, C, D

2. Button for changing the function display: A

3. Button for resetting the trip data: A (3's)

4. Button for entering Data Setting Mode: C

5. Buttons for entering Altitude Calibration Mode: A+B (3's)

Butt on A:

1. Press the A button to move to the next function

display.

2. Press the A button for 3 seconds, and you will
reset the following data:
AVG SPD, MAX SPD, DST, RTM, ALT, MAX ALT,
AVG RPM, MAX RPM.

Butt on B: 1. Press the B button to turn on the EL backlight.

2. Press the B button for 1 second, and the

temperature will be displayed.

Butt on C:

Press the C button, and you'll enter Data Setting

Mode.

Buttons A+B: Push both buttons for 3 seconds, and you'll enter

Altitude Calibration Mode.

Butt on D:

Press the D button to switch to Bike 1 or Bike 2.

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3. In Altitude Calibration Mode:

Tips:

1.The buttons you'll use in Altitude Calibration Mode: A, B.

2.Buttons for enter i ng or qui tti ng Al ti tu de C al ibr at ion Mode: A+B ( 3's)

3.

Buttons for quickly resetting the current altitude to zero: A+B (1's)

Buttons A+B:

1. In General Mode, push A and B buttons for 3
seconds to enter Altitude Calibration Mode.

2. In this mode, press A and B buttons at the same
time briefly, and the current altitude value will
return to zero. It's convenient for quick setting.

3. Push A and B buttons for 3 seconds to quit this

mode and return to General Mode.

Butt on A:

1. Press the A button to change the plus sign to

minus, or change the minus sign to plus.

2. Press the A button to change the value of a
flickering digit during setting.

Butt on B:

Press the B button to move to the next digit in a

loop during setting.

About Altitude Calibration:

1. If you are aw are of your hom e altitude or basis alti tude before ri ding, you can
directly adj ust the c urrent altitude dat a after you enter t his m ode.

2. If you do not know your basi s al ti tude be fore ridi ng or if yo u do not c ar e

about the altitude of the starting point, you may return the current
altitude value to zero in the calibration mode by pressing both A and B
buttons at the same time briefly. In this way, the rider will still enjoy the
fun of learning the accumulated altit ud e gai n s dur i ng eac h ride.

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3. Wheel Circumfer en ce
Measurement

To set the wheel circumference before riding, you should
measure the wheel circumference by yourself or just refer to the
Wheel Circumference Table as shown below:

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How do you measure the wheel circumference
yourself?

Roll the wheel until the valve stem is closest to the ground and mark
the corresponding spot on the floor as the first point. Next, roll the
wheel forw ard until t he valv e stem is closes t to the grou nd onc e again .
Mark the corresponding spot on the floor as the second point.

Then measure the distance between both points, using the unit of
millimeter. The distance equals your wheel circumference.

1. The default value of wheel circumference for Bike 1 is 2155mm;
that for Bike 2 is 2050mm. Enter the correct wheel
circumference into the computer in Data Setting Mode.

2. Refer to pages 10 and 11 about basic setting to set your wheel
circumference.

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4. Basic Setting & Opera ti on

Tip for Data Setting :

1. Press the A button to change the value of a flickering digit.
Press the B button to move to the next digit in a loop.

2. Press a nd hold the B butt on for 1 s econd t o move to the next setting

when the current setting is finished.

3. If the computer is idle during Data Setting Mode for 20

seconds, it'll automatically return to General Mode.