Startup manual gives you information of installation, preparation of the main unit and basic
operation.
INTRODUCTION
Thank you very much for purchasing the CAT EYE MSC-2Dx. The MSC-2Dx is a multi sports
computer that combines the functions of a wireless heart rate monitor and a wired
Cyclocomputer. Our race proven Cyclocomputer technology and the double pulse heartrate
system enables you to monitor, track and record your training and racing like never before.
The recorded data can be downloaded to a PC by using the optional download unit.
Please read this manual to gain a thorough understanding of the product and how it works.
Please keep this manual in a safe place.
If this manual is damaged or lost, contact our offices, your local dealer or www.cateye.com.
Important
• Always follow the warnings that are marked with Warning!!!.
• No part of this manual may be reproduced or transmitted without the prior written permission of Cat Eye Co., Ltd.
• The contents and illustrations in this manual are subject to change without notice.
• If there should be any errors or inaccuracies in this manual, please contact Cat Eye at
www.cateye.com.
Important ----------------------------------------------------------------------------------- 1
About the Manuals --------------------------------------------------------------------------------- 2
The correct use of the Cat Eye MSC-2Dx---------------------------------------------------- 4
Name of Various Sections and Parts---------------------------------------------------------- 5
Button Navigation ---------------------------------------------------------------------------------- 6
Changing the upper display ----------------------------------------------------------- 7
Functions --------------------------------------------------------------------------------------------- 8
Using the Heart Rate Function
Chest Belt Heart Rate Sensor ------------------------------------------------------ 10
Before Wearing Chest Belt Heart Rate Sensor -------------------------------- 10
Wearing The Heart Rate Sensor--------------------------------------------------- 11
Setting the Main Unit
Memory Record ------------------------------------------------------------------------ 18
Downloading to a PC ----------------------------------------------------------------- 23
Heart Rate Training ------------------------------------------------------------------------------ 24
Trouble Shooting --------------------------------------------------------------------------------- 26
Replacing Battery -------------------------------------------------------------------------------- 28
Replacing Electrode Belt ----------------------------------------------------------------------- 29
Maintenance --------------------------------------------------------------------------------------- 29
Specifications-------------------------------------------------------------------------------------- 30
Registration ---------------------------------------------------------------------------------------- 31
Accessories ---------------------------------------------------------------------------------------- 32
Index ------------------------------------------------------------------------------------------------- 33
MSC-2Dx
3
THE CORRECT USE OF THE CAT EYE MSC-2Dx
Warning !!!
• Pace maker users should never use this device.
• This device should never be used in commercial aircraft.
• When using the MSC-2Dx, do not give excess attention to the monitor or the data. Pay
attention to the road, traffic and your surroundings!
• Keep the device away from children. If children use this device, they should have adult supervision.
• Dispose of used batteries properly. Keep batteries out of the reach of children. In case the
battery is swallowed by accident, consult a doctor immediately.
NOTE !:
• The following places generate strong electromagnetic wave and interference, which cause
incorrect measurement:
1. Places near TV, PC, radios, motors/engines, or in cars and trains.
2. Railroad crossings and near railway tracks, around television transmitting stations and
radar bases.
• Do not use the chest belt if it causes a rash or other skin irritations.
• Avoid dropping or severely jarring the main unit or chest strap.
• When the chest belt becomes soiled with sweat, clean it with mild soap and water.
• Do not bend, twist or pull forcibly the electrode area of the chest belt.
• Try to avoid using the main unit within a 1.5m radius of other transmitters. Do not use other
wireless devices simultaneously. It may result in improper measurements.
• Avoid exposing the main unit to direct sun light for extended periods of time when not in use.
• Do not disassemble the main unit. We recommend taking the main unit to a professional
jeweler for battery replacement and proper resealing.
• Periodically check the positions and mounting condition of the magnet and the speed sensor.
• Never apply chemicals (thinner or benzene) to the unit.
• Static electricity could cause a function error, resulting in abnormal display of the data. In
such a case, reset the main unit.
MSC-2Dx
4
NAME OF VARIOUS SECTIONS AND PARTS
Main Unit
A. Display
1. Upper Display
2. Middle Display
3. Lower Display
4
5
8
9
10
16
C
SET/AT
MODE
E
1
A
2
3
6
7
11
13
12
14
15
H
B
D
LT
G
S/S
F
4. Speed Icon
5. Clock Time Icon
6. Speed Scale Icon
7. Heart Rate Target Zone Icon
8. Auto Time Mode Icon
9. Heart Rate Icon
10.Used Memory Rate Icon
11.Wheel Circumferences Icon
12.Alarm Icon
13.Memory Record Icon
14.Heart Rate Scale
15.Speed Pace Arrow
16.Selected Functions Icon
B. Lap Button (LAP)
C. Set Button (SET/AT)
D. Light Button (LT)
E. Mode Button (MODE)
F. Start/Stop Button (S/S)
G. All Clear Button (AC)
H. Wrist Band
Chest Belt Heart Rate Sensor
L. Transmitter
M. Electrode Belt
N. Attachment Belt
Mounting parts
O. Bracket
P. 2Dx Attachment
Q. Speed Sensor
R. Wheel Magnet
S. Rubber Pad
T. Nylon Tie
U. Sensor Screw
V. Sensor Band B
W.Sensor Band A (Large)(Small)
Accessories
Carry Bag
Quick Chart
Quick Start Manual
User Manual
N
M
L
T
I. Back Cover
S
P
R
U
Q
W
930000
I
K
J
J. Contacts
K. Serial No.
O
V
MSC-2Dx
5
LAP
Average
Speed
A
V
S
Trip
Distance
D
ST
Maximum
Heart Rate
M
X
P
Lap Count
LP
Maximum
Speed
M
X
S
Total
Distance
O
DO
SUB Function
SUB Function
Clock Time
(Current Speed)
(S)
Elapsed
Time
T
M
MAIN
Function
PUSH
Hold down
for two seconds
T/AT
E
S
MODE
Mode Button (MODE)
BUTTON NAVIGATION
Mode Button (MODE)
Under standard operations, this button switches the function of the lower display.
The functions of the lower display are divided into the main functions. Each main function has a
LT
S/S
corresponding sub function. To switch the functions of the lower display:
• Push MODE button to switch from one main function to the next main function.
• Hold down MODE button for more than 2 seconds to switch from a main function to its sub
function.
• Push MODE button again to return to the main function from the sub function.
• You cannot directly move from one sub function to another.
See the following diagram for the flow of the main and sub functions.
NOTE !: This screen display can be switched from Clock Time to Speed on the lower screen.
Switching lower display with the MODE button
Lap Button (LAP)Light Button (LT)
T
E
S
MODE
LAP
T
/A
LT
/S
S
Lap Button (LAP)
When the unit is measuring time, heart rate, etc., push this button to record data (Elapsed Time,
Distance, Lap's Average Speed and Lap's Average Heart Rate) at any arbitrary point. Up to 50
lap data points can be captured. (See page 15, "Lap Feature")
Light Button (LT)
This button illuminates the screen for about 3 seconds.
MSC-2Dx
6
Set Button (SET/AT)
LAP
T
A
/
T
E
S
M
O
D
E
LAP
T
/A
T
E
S
M
O
D
E
Start/Stop Button (S/S)
LAP
T
A
/
T
E
S
MODE
LT
S/S
LT
/S
S
LT
S/S
AC Button (AC)
Set Button (SET/AT)
This button is used to enter various
setting screens. See the right diagram for how the screen changes.
When you are setting data into the
unit, this button is used to fix and
complete the setting.
Data on Lower Display
Elapsed Time
Average Speed
Trip Distance
Maximum Speed
Clock Time
Lap Count
Maximum H.R.
Stop state
Total Distance
SET/AT
Area to Enter, Setting Item
Auto Time Feature On/Off
Confirming Heart Rate Target Zone
Clock Time Setting
Lap Data Readout
Memory Record File Select
Wheel Circumference Setting
Start/Stop Button (S/S)
This button starts/stops measurement of Elapsed Time, Average Speed and Distance. While
measuring, "bpm" in the middle display flashes. When Auto Time feature (
does not function.
Changing the Upper Display
Upper Display Select
• When Auto Time feature is off (
is off), push SET/AT button and
S/S button at the same time and the upper display changes from
SET/AT
When Auto is on
AT
S/S
+
S/S
Current Speed to Clock.
• When Auto Time feature is on (
between speed and clock.
is on), this button switches
) is on, this button
All Clear Button (AC)
NOTE! This button is not used for normal daily operations. Push this button after replac-
ing the battery or after a display error occurs.
This button deletes the lap data, record memory data and the clock time setting. The total
distance, wheel circumference, speed scale and heart rate target zone settings will not be deleted.
After pushing AC button, reset the clock time.
• If the AC button is pressed while holding SET/AT button, the MSC-2Dx returns to the default
state and all data is erased. Some users might want to perform this function at the beginning
of a training season to record yearly training mileage in the Odometer. Do not perform this
ALL CLEAR under normal condition.
LAP
SET/AT
MODE
Reset Operation
L
T
Reset Operation
If MODE button and S/S button are pressed simultaneously, elapsed time, maximum heart rate,
S/S
average speed, maximum speed, and trip distance will be reset to zero and the lap data will be
erased, provided that the lower display is not in Odometer mode.
MSC-2Dx
7
FUNCTIONS
Upper Display
Middle Display
Lower Display
Either Current Speed or Clock Time can be selected on the upper display. (See page 7)
Current Speed
The speed icon flashes. The data is updated once a second.
Range: 0.0 (3.0) ~ 65.9 mph [0.0 (4.0) ~ 105.9 km/h]
Clock Time
The clock icon flashes. Time is displayed in 24 hour or 12 hour.
Reference:
When the speed scale is "km/h", the clock time is always displayed in a 24-hour clock. When the
"mph", the clock time is always displayed in a 12-hour clock.
Heart Rate
When the chest belt heart rate sensor is attached to the body, the heart rate icon flashes and
the Heart Rate is displayed in real time.
Display Range: 0~299 bpm
Select the desired function with MODE button on the lower display. Refer to page 6, "Mode
Button" for navigation to each function.
TmElapsed Time (Timer)
The time lapse from the start to the present time is shown in hours, minutes and seconds. The
elapsed time data returns to zero with the reset option.
Range: 0.00.00~9.59.59
MxPMaximum Heart Rate
The maximum heart rate from the start to the present time is displayed. This is the sub function
of Elapsed Time. The Max Heart Rate data returns to zero when the MSC is reset.
Range: 0 ~ 299 bpm
Clock Time
Current time is displayed in 24 hour or 12 hour time. The Clock can be moved to the upper
display. (Current Speed would then appear in the lower display.) (See page 7)
MSC-2Dx
8
SCurrent Speed
The present speed is displayed. It is updated once a second.
Range: 0.0(3.0)~65.9 mph [0.0(4.0)~105.9 km/h]
LPLap Count
The lap count from the start to the present time is displayed. This is the sub function of Clock
Time (or Current Speed). The Lap data returns to zero when the MSC is reset.
Range: LP-00 ~ LP-50
AvSAverage Speed
The average speed from the start to the present time is displayed. The Average Speed data
returns to zero when the MSC is reset. When the elapsed time exceeds 27:46'39", or the trip
distance exceeds 999.99 mile[km], (.E) will appear on the display and calculation of average
speed ceases indicating an Error.
Range: 0.0~65.9 mph [0.0~105.9 km/h]
MxSMaximum Speed
The maximum instantaneous speed is displayed. This is the sub function of Average Speed. The
Max Speed data returns to zero when the MSC is reset.
The trip distance from the start to the present time is displayed. The distance data returns to zero
when the MSC is reset.
Range: 0.00~999.99 mile [km]
OdoTotal Distance
The trip distance is accumulated continuously. This is the sub function of Trip Distance. From 0
to 9,999.9, the increment is 0.1; from 10,000 to 99,999, the increment is 1.
Range: 0.0 ~ 9,999.9/10,000 ~ 99,999 mile [km]
PTmTime in Pulse Zone (Time in Training Zone) Readout Screen
In the readout screen, the time spent within the heart rate target zone is displayed.
The upper and middle displays indicate the upper and the lower limit of the zone respectively,
and the lower display indicates the time spent in that heart rate zone.
MSC-2Dx
9
USING THE HEART RATE FUNCTION
Wireless Heart Rate Sensor
Main Unit
Chest Belt Heart Rate Sensor
The chest belt heart rate sensor is based on the electrocardiograph methodology used in hospitals. The MSC-2Dx uses this technology but in a simplified and miniaturized form. In this methodology, electrodes attached to the body sense the differences of electric potential and thus
heart rate is measured. In the same manner, MSC-2Dx's chest belt sensor uses two built-in
electrodes that come into contact with the body to detect differences in electric potential. The
signal is then transmitted to the main unit and heart rate is displayed.
Reference:
Maximum transmitting distance: about 90 cm.
Before Wearing Chest Belt Heart Rate Sensor
Warning !!!
Pace maker users should never use this device.
NOTE !:
• Wear the chest belt heart rate sensor at the center of your chest and in contact with your skin.
• To increase measurement effectiveness, dampen the electrode area with water or electrocardiograph electrolyte cream.
• People with sensitive skin can wear the chest belt over a thin shirt with the electrode area
damped with water.
• Hair on the chest may interfere with accurate measurements.
• Do not use this unit with other cordless devices (including CATEYE CC-CL200) or some
lamps (including CATEYE Stadium Light). Interference might occur, resulting in incorrect
measurement.
MSC-2Dx
10
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