Thank you for purchasing the CATEYE V3.
The V3 is a high-performance computer for riders who wish to train extensively and
analyze their data.
2.4GHz-frequency digital wireless technology, which is the same technology used for
wireless LAN, is used for both the speed/cadence integrated speed sensor and the heart
rate sensor. This technology practically eliminates interference from external noise and
cross-talk with other wireless computer users, providing you with stress-free riding.
Read this instruction manual thoroughly and understand the functions of the computer
before using it.
Keep it in a safe place for future reference.
Important
• Always follow the sections that are marked with “ Warning!!!”.
• No part of this manual may be reproduced or transmitted without the prior written
permission of CatEye Co., Ltd.
• The contents and illustrations in this manual are subject to change without notice.
• If you have any questions or concerns about this manual, please contact CatEye at
www.cateye.com.
About the manuals
Basic installation and operation
Please go here for installation of the unit on the bicycle, use of the heart rate measurement function, preparing the computer, and the basic operation of the product.
1. How to install the unit on your bicycle ............... See page 6-8
2. Heart rate sensor ............................................... See page 9
3. Preparing the computer ..................................... See page 10-15
4. Basic operation of the computer ........................ See page 16-17
Measurement screen
Please go here to learn how to operate the computer functions.
• Measurement screen .......................................... See page 18-22
Ride data review
Please go here to check and manage recorded data.
• File view ............................................................. See page 24-27
Changing computer configuration
Please go here for changing and checking each menu items.
• Changing the computer configuration ................ See page 23-34
Advanced use
• Recording lap and split time data ....................... See page 20 “Lap function”
• Training with target heart rate zones .................. See page 37
Observe the following instructions for safe usage.
The meaning of icons in this manual:
Warning!!! : Sections marked with these icons are critical for safe use of the device.
Caution :Important cautionary notes on the use and operation of the V3.
Warning!!! :
• Pace maker users should never use this device.
• Do not concentrate on the data while riding. Always be sure to ride safely.
• Do not leave any battery within the reach of children, and dispose of them correctly.
If a battery is swallowed, consult a doctor immediately.
Caution:
• Regularly check the positions of the magnets and the speed/cadence sensors and make
sure that they are securely mounted. Tighten it firmly if there is any looseness.
• Avoid leaving the main unit / wireless sensor in direct sunlight for extended periods of time.
• Do not disassemble the computer, heart rate sensor, or speed sensor.
• Do not subject the computer, heart rate sensor, or speed sensor to strong impact; take
care also to prevent any of them from falling.
• Do not use paint thinner or rubbing alcohol to clean the unit.
• Stop using the unit if you have skin irritation with the HR strap or electrode pad.
• Do not twist or pull strongly the heart rate sensor.
• The heart rate sensor may deteriorate due to long-term use.
Replace the heart rate sensor if it has frequent measurement errors.
• As a nature of liquid crystal displays, sunglasses with polarized lens may block the visibility.
2.4GHz digital wireless system
2.4GHz-frequency digital wireless technology, which is the same technology used for
wireless LAN, is used for both the speed/cadence integrated speed sensor and the heart
rate sensor. This technology practically eliminates interference from external noise and
cross-talk with other wireless computer users, and enables to store highly reliable data.
However, in a very rare occasions, objects and places may generate strong electromagnetic waves and interference, which may result in incorrect measurement:
• TV, PC, radios, motors/engines, or in cars and trains.
• Railroad crossings and near railway tracks, around television transmitting stations and
radar bases.
• Other wireless computers or digitally controlled lights.
Be sure to follow these instructions.
* Helpful tips are highlighted with asteriks.
ENG
ENG-2
ENG-3
Description of computer and its parts
Computer
Front
Back-light button (LT)
Start / stop / enter button (SSE)
Back
All clear button (AC)
Accessories
Bracket /
Bracket band
Heart rate sensor / HR strap
Speed sensor
(SPEED/CADENCE)
Mode-1 button (M1/+)
Mode-2 button (M2/-)
Lap button (LAP)
Battery cover
Menu button (MENU)
Bracket rubber pad
Wheel magnet
Cadence magnet
Nylon ties (x5)
Screen display
: Speed sensor signal
Indicate Speed sensor signal status.
(page 15)
: Alarm
Lights up when the HR alarm sound feature is turned on.
: Wheel selection
Displays the wheel currently selected.
: Heart rate sensor signal
Indicate Heart Rate sensor signal status.
(page 15)
: Target zone
Lights up when the target zone is on,
and flashes when it is out of the zone.
Dot display
Mainly displays mode descriptions for the values displayed
just below.
Button navigation
Operative buttons at set-up
of the computer, or on the
menu screen, will flash.
Lights up or
flashes when the
SSE is operative.
: Speed pace arrow
The pace arrows show whether the current speed is faster (
the average speed.
: Speed unit
Flashes while speed measurement is in
progress.
: Low battery indicator
Lights up when the remaining battery capacity for the computer is low.
: Average display
Lighting up displays that the speed, heart rate,
and cadence displays are average values.
: Maximum value display
Lighting up displays that the speed, heart rate,
and cadence displays are maximum values.
: Heart rate pace arrow
The pace arrows show whether the current heart rate is faster (
than the average heart rate.
: Heart rate unit
: Auto-mode
Lights up when the auto-mode function is on.
: Lap icon
Lights up while the lap data is displayed.
: Cadence sensor signal
Indicate Cadence sensor signal status.
(page 15)
Selected data icon/unit
Displays together with the data currently displayed in
the lower display.
) or slower ( ) than
) or slower ( )
Lights up when the
M1/+ is operative.
Lights up when the
M2/- is operative.
ENG
ENG-4
ENG-5
S
P
E
E
D
C
A
D
E
N
C
E
How to install the unit on your bicycle
1. Attach the bracket to the stem or handlebar
The Flex Tight ™ bracket can be attached to either the stem or the handlebar depending on how the bracket and band are configured.
Caution:
Tighten the dial on the bracket band by hand only.
Over-tightening can damage the screw threads.
When attaching the Flex Tight ™ bracket to the stem
* Attach the bracket with its open end facing to the right.
Bracket band
Bracket
Bracket rubber pad
Stem
2. Mount the speed sensor and magnet
Speed sensor
2-1. Temporarily secure the speed sensor
Locate the speed sensor on the left chain stay as shown
above, and loosely secure it with the nylon ties.
* Do not tighten the nylon ties completely at this stage.
Once a nylon tie is tightened, it cannot be pulled out.
ENG
Wheel magnet
Cadence magnet
Speed sensor
SPEED
When attaching the Flex Tight ™ bracket to the handlebar
* Attach the bracket with its open end facing to the right.
Bracket band
Bracket rubber pad
Bracket
Cut extra length of the band with scissors.
Caution:
Round off the cut edge of the bracket band to
prevent injury.
ENG-6
Handlebar
2-2. Mount the magnet
1. Loosen the setscrews both on the SPEED side
and CADENCE side of the speed sensor, and turn
the sensor to the angle as shown on the right.
2. Temporarily secure the wheel magnet to the
spoke so that it faces the sensor zone on the
SPEED side.
3. Temporarily secure the cadence magnet inside
the crank with nylon ties, so that it faces the
sensor zone on the CADENCE side.
* When the speed sensor is not positioned ap-
propriately in respect to the two magnets (in both
Steps 2 and 3), move the speed sensor back
and forth so that it is positioned properly.
After you move the speed sensor, adjust the
position so that the two magnets face the relevant sensor zone.
4. After adjustment, tighten the nylon ties firmly
to secure the speed sensor.
Nylon ties
Setscrew on the
CADENCE side
Sensor zone
Wheel
magnet
CADENCE
Setscrew on the
SPEED side
Cadence
magnet
Nylon ties
Continue
SPEED
Sensor
zone
ENG-7
2-3. Adjust the distance to the magnet
1. Adjust the distance between the wheel magnet
and the SPEED side of the speed sensor to be
about 3 mm. After adjustment, tighten the
setscrew on the SPEED side.
2. Adjust the distance between the cadence
magnet and the CADENCE side of the speed
sensor to be about 3 mm. After adjustment,
tighten the setscrew on the CADENCE side.
CADENCE
Cadence magnet
2-4. Securing various parts
Tighten the speed sensor, setscrew, and magnet
firmly, and check for any looseness.
* For steel axle pedals, cadence magnet can be
compacly installed onto the end face of the
pedal axle. Make sure to remove the doublesided tape from the magnet when doing this.
3. Remove/Install the computer
Caution:
When removing, hold the unit to prevent it from falling.
InstallRemove
Slide the computer
from the right
Click
Push outward
About 3 mm
SPEED
About 3 mm
Cut extra length
of the nylon tie
with scissors.
Holding the unit
Wheel
magnet
Heart rate sensor
Heart rate is measured when the heart rate sensor is worn on the chest.
Heart rate sensorHR strap
Before wearing the heart rate sensor
Warning!!! :
This product must NOT be used by those who have a pacemaker.
• To avoid measurement errors, it is recommended to moisten the electrode pads with
water.
• If your skin is ultra-sensitive, the electrode pad may be moistened with water and worn
on a thin undershirt.
• Chest hair may interfere with the measurement.
Wearing the heart rate sensor
Heart rate sensor
Hook
1. Insert the HR strap hook to a hole on the heart rate sensor, and push it until it clicks.
2. Wear the heart rate sensor with the HR strap, and adjust the length of the HR strap to
fit your chest size (under bust). Fastening the strap too tightly may cause discomfort.
3. Insert the HR strap hook to another hole on the heart rate sensor, and push it until it
clicks.
4. For removal, hold near the hole on the heart rate sensor and the hook, and twist off.
* Ensure that the rubber part of the electrode pad is in direct contact with the body.
* When your skin is dry, or wearing the heart rate sensor on top of your undershirt
may produce measurement errors.
To avoid errors, moisten the rubber part of the electrode pad.
ENG
ENG-8
ENG-9
Preparing the computer
Computer's basic items must be set up before using it.
Removing the insulation sheet
When using the unit for the first time after purchasing, open the battery cover and remove the insulation sheet.
* After you remove the insulation sheet, replace the
battery cover in place.
Open
Close
Insulation
sheet
1. Formatting/Restarting operation
Formatting operation
Caution: All data are reset to the default and deleted.
1. While pressing the MENU button on the back of the
computer, press AC button.
Release the MENU button when a test pattern is displayed
on the screen. The date/clock setting screen appears.
Continue with date/clock setting.
Formatting operation:
(At initial purchase, or reset all to default.)
MENU
ENG
Flow of set-up
There are 2 different set-up operations:
• Formatting operation: At initial purchase, or reset all to default.
• Restarting operation: When you replace batteries, or an error is displayed.
Each operation has a different flow of set-up.
For formatting:For restarting:
Formatting operation
Date/clock setting
Restarting operation
Date/clock setting
* The date when you per-
Tire circumference input
Set the sensor ID
Selecting speed unit
Measurement screen
formed the restarting
operation will be initially displayed.
In the restarting operation,
the following data are retained.
Measurement screen
Total time
Total distance
Menu screen
File data saved
Time format
Date
Tire circumference and
wheel selection
Speed unit
Sensor ID
Auto-mode
Countdown distance
Sound
Setting the target zone
* If mistake was made or “ID-ERROR” showed in the initial set up, go through the
full initial set up steps first, and all corrections can be made afterwords through
Menu screens. (page 23)
ENG-10
AC
* When all screen items light up without any test pattern displayed on the screen,
the formatting operation has not been completed properly. Perform the formatting
After a test pattern is
displayed, all screen
items light up.
operation again.
Restarting operation
1. Press the AC button on the back of the computer.
After all screen items light up for a second, the date/clock
(When you replace batteries, or an error is displayed.)
setting screen appears.
Continue with date/clock setting.
Restarting operation:
AC
* Most of the settings and file data saved are retained for the restarting operation
(see chart on page 10).
All screen items light
up (for a second).
2. Date/Clock setting
Set the current date and time.
1. Select the date display format.
Select the date display format from “YY/MM/DD”, “MM/DD/YY”, and “DD/MM/YY” using the M1/+ and M2/- buttons,
and confirm with the SSE button.
Switch the display:
M1/+
M2/-
(or)
Confirm:
SSE
Continue
ENG-11
Tire sizeL (mm) Tire sizeL (mm) Tire sizeL (mm)
12 x 1.75
14 x 1.50
14 x 1.75
16 x 1.50
16 x 1.75
18 x 1.50
18 x 1.75
20 x 1.75
20 x 1-3/8
22 x 1-3/8
22 x 1-1/2
24 x 1
24 x 3/4
Tubular
24 x 1-1/8
24 x 1-1/4
24 x 1.75
24 x 2.00
24 x 2.125
26 x 7/8
)
26 x 1.25
26 x 1-1/8
26 x 1-3/8
26 x 1-1/2
26 x 1.40
26 x 1.50
26 x 1.75
26 x 1.95
26 x 2.00
26 x 2.10
26 x 2.125
26 x 2.35
26 x 3.00
27 x 1
27 x 1-1/8
27 x 1-1/4
27 x 1-3/8
650 x 20C
650 x 23C
650 x 35A
650 x 38A
650 x 38B
700 x 18C
700 x 19C
700 x 20C
700 x 23C
700 x 25C
700 x 28C
700 x 30C
700 x 32C
700C Tubular
700 x 35C
700 x 38C
700 x 40C
29 x 2.1
29 x 2.3
1938
1944
2090
2125
2105
2070
2080
2086
2096
2105
2136
2146
2155
2130
2168
2180
2200
2288
2326
2. Enter the “Year”, “Month” and “Day.”
Enter the “Year”, “Month” and “Day” in the display order
selected in Step 1 using the M1/+ and M2/- buttons, and
confirm with the SSE button. Enter the last 2 digits of the year.
Increase/decrease:
3. Select the clock display format.
Select “24h (24 hour)” or “12h (12 hour)” using the M1/+ and
M1/+
M2/-
(or)
Confirm:
SSE
Display format
M2/- buttons, and confirm with the SSE button.
24h
↔↔
↔ 12h:
↔↔
M1/+
M2/-
(or)
Confirm:
SSE
4. Enter the “Hour” and “Minute.”
Enter the “Hour” using the M1/+ and M2/- buttons, confirm
with the SSE button, and then enter the “Minute” in the
same way.
Increase/decrease:
5. After you set the date/clock, press the MENU button to
proceed to the next set up item.
M1/+
M2/-
(or)
Confirm:
SSE
For the formatting operation: To the “Tire circumference input” screen below
For the restarting operation: To the measurement screen and ready for use
3. Tire circumference input
Enter the tire circumference of the bicycle wheel in millimeter.
1. Enter the last 2 digits of the tire circumference.
Enter using the M1/+ and M2/- buttons, and move digits
using the SSE button. Then, enter the first 2 digits in the
same way.
Increase/decrease:
2. After completed, press the MENU button to proceed to “Set
ENG-12
the sensor ID” below.
To “Set the sensor ID”:
M1/+
M2/-
(or)
MENU
(Back)
Move digits:
SSE
Hour Minute
MENU
(Back)
Tire circumference
You can find the tire circumference (L) of your tire size in the chart below, or actually
measure the tire circumference (L) of your bicycle.
How to measure the tire circumference (L)
For the most accurate measurement, do a wheel roll out. With the tires
under proper pressure, place the valve stem at the bottom. Mark the
spot on the floor and with the rider's weight on the bike, roll exactly one
wheel revolution in a straight line (until the valve comes around again to the bottom). Mark
where the valve stem is and measure the distance in millimeter.
L mm
* For your reference, use the tire circumference chart below.
4. Set the sensor ID
Set the heart rate sensor ID and the speed sensor ID.
* This unit requires the sensor ID in order for the computer to receive signal from
the sensors.
* To check the sensor ID, heart rate sensor must be worn properly (page 9), and be
within 5 m from the bicycle with a speed sensor mounted (page 7).
* When performing ID Synch, make sure there is no other similar sensors in the
surrounding area. (It may pick up other sensor's ID)
1. Wear the heart rate sensor.
2. Press the SSE button to start searching for the heart rate
sensor ID.
When the heart rate is displayed as “ID-OK” on the screen,
searching is completed.
Start searching:
SSE
Continue
ENG
ENG-13
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