CatEye MSC 3Dx - Manual (Page 5)

-5-
Setting up Main Unit
Input the wheel circumference of your bicycle into the main unit. Find out your bicycle’s wheel circumference from
the table below. If you cannot fine one, use the default figure “ 2096” temporarily.
Wheel Circumference = L
Tire Size mm
24 x 1 1753
24 x 3/4 Tubular 1785
24 x 1-1/8 Tubular 1795
24 x 1-1/4 1905
24 x 1.75 1890
24 x 2.00 1925
24 x 2.125 1965
26 x 1 (559mm) 1913
26 x 1 (650C) 1952
26 x 1.25 1953
26 x 1-1/8 Tubular 1970
26 x 1-3/8 2068
26 x 1-1/2 2100
26 x 1.40 2005
26 x 1.50 1985
26 x 1.75 2023
26 x 1.95 2050
26 x 2.00 2055
26 x 2.10 2068
26 x 2.125 2070
26 x 2.35 2083
27 x 1 2145
27 x 1-1/8 2155
27 x 1-1/4 2161
27 x 1-3/8 2169
650 x 35A 2090
650 x 38A 2125
650 x 38B 2105
700 x 18C 2070
700 x 19C 2090
700 x 20C 2086
700 x 23C 2096
700 x 25C 2105
700 x 28C 2136
700 x 30C 2170
700 x 32C 2155
700C Tubular 2130
700 x 35C 2168
700 x 38C 2180
700 x 44C 2224
! -1
Select a
Speed Scale
Setting the Wheel
Circumference
! -2
! -3
! -4
“Elapsed Time T M ”
(1) Initial Setting
The main unit has 6 buttons: SET/AT button, MODE button, LAP
button, LT button, S/S button and AC button. (
! -1) Follow the
instruction below for the initial setting.
1. Push AC button. Then the entire screen illuminates and gives a
beep sound. Speed scale “ km/h ” flashes. Push the MODE button
to switch between “ km/h ” and “ mph ”. ( ! -2)
2. Push SET/AT button to choose the desired speed scale. Then
the wheel symbol appears and the initial figure 2096 flashes.
( ! -3)
3. Input your bicycle’s wheel circumference obtained from the
above table. Push MODE button to increase the digits, and LAP
button to decrease. (To increase/decrease rapidly, hold down
the respective button.)
Caution: This is just the temporary setting of the wheel circum-
ference. For more accurate measurement, input the
exact wheel circumference. When you want to change
wheel circumference later, refer to “Changing wheel
circumference” in page 13 of the user manual.
4. Push SET/AT button to fix the setting, and the screen shows
“Current Speed ” in the upper display, “Heart Rate ” in the
middle display and “Elapsed Time TM ” in the lower display ( ! -
4). Initial setting is completed.
3
wheel circumference
Name of Button
The tire size is marked on the
side of your tire.