Manual Vetta RT255L Cycling Computer

Manual

WW

Fork Leg

Zip-Ties

A

2

3

C

L

O

S

E

O

P

E

N

Magnet

Sweep Path

Spoke

Bladed

Spoke

Magnet

Bladed Spoke

Magnet

A

2

3

C

L

O

S

E

O

P

E

N

Wireless Speed

Transmitter

A

2

3

C

L

O

S

E

O

P

E

N

Spacer Tip

Alignment

Mark

MOUNTING BRACKET & HEAD UNIT (

RT255/255L/277/288/288L)

Attach Mounting Bracket & Bracket Rubber Pad to the handlebar on the

“Sensor/Transmitter side” using the Zip-Ties provide. Adjust its position

to your liking and tighten the Zip-Ties.

Note: Be sure to leave enough

slack in the wire to accommodate the movement of fork and

handlebars. (See Fig. A)

Slide the Head Unit into the Mounting Bracket as shown until it clicks

into position. Remove by pressing in the two locking tabs as shown.

Secure wire with tape supplied and by winding it around cables.

Locking Tab Locking Tab

UNLOCK UNLOCK

Wired Mounting Bracket

Head Unit

SETUP & PROGRAMMING

SERVICE TIMER RT 255|255L|277|288|288L

SPEED/ DISTANCE UNIT RT 255|255L|277|288|288L

INSTALLATION TESTS

Once installation is complete, the computer should be tested to make sure it is working properly.

To test the Speed Sensor/Transmitter installation:

Pick up the front of the bicycle and spin the front wheel. The LCD should display a speed- reading within 2-3 seconds.

To test the Cadence Sensor installation (RT277):

Advance the LCD to the CAD Mode using or . Turn the crank backwards or ride the bicycle a short distance. After a

few revolutions, a cadence reading should display on the LCD.

If there is no speed-reading or cadence reading, check the alignment and spacing between the magnet and

sensor/transmitter. Make sure that the Head Unit is completely locked into position. If these checks do not solve the

problem, talk to an Authorized Vetta’s Retailer or connect to www.vetta.com

.

Important: Make sure the magnets locking screw and all Zip-Ties are properly tightened.

Service Timer could be programmed with a selected number of ride time (hours or days) or distance as the interval for

servicing the bicycle or any component on it, such as a front or rear shock.

The default settings “0000” means the Service Timer is turned off.

Press to scroll flashing hr (hour), day or dst (distance) as the Service Timer unit. Press to select the desired Service

Timer unit.

When the desired Service Timer unit has been chosen, press to scroll the flashing digit to the desired number. Press

1

to select this number and advance to next digit. Repeat this procedure until all digits are selected. Press to advance

the next Setup Mode. ( Maximum settings: hour / day / distance = 1999 / 999 / 9999 )

2

1 2

2

1

2

1

In Setup, Button is used to select or set a value and to advance to the next digit or Mode. Button is used to switch

between settings and to increase values.

Initial Setup

All RT200 series computers are programmed to enter the Initial Setup Mode after new battery replacement or all clear

total reset (press , & simultaneously for 3 seconds in any Mode).

In the Initial Setup, riders can program the Basic Settings for the computer, the content of settings are same as NOM

Setup for Basic Setting.

Important: The computer CANNOT exit the Initial Setup Mode until all the Basic Settings are finished.

NOM Setup

After completed the Initial Setup, riders can change any values or correct any errors by re-entering the NOM Setup.

To enter the NOM Setup Mode press & hold & simultaneously when the lowest screen is in the CLK Mode. Press

3

any time to exit and advance to the previous Mode.

1

1 2

2

3

1 2

2 2 2

1

When the Ride Time (the elapsed time for Service

Timer) or the elapsed distance begins to flash, press

2

to reset to zero;

OR press to reserve the digits, and advance to the

next Setup Mode.

Important:

In the Initial Setup, the elapsed time [distance] for

Service Timer doesn’t exist.

OR OR

1

1 2

1

2 1

2

1 2 1

2

2

1

Press to toggle between flashing M/hr and KM/hr. Press to select

and advance to the next Setup Mode.

Note: Speed/Distance Unit cannot be changed if there have been ride

data on screens. If you want to change the Unit, please make sure you

had cleared all ride data before entering the NOM Setup Mode. This

restriction does not apply to the Initial Setup after the 1

st

time battery

installation, new battery replacement or All Clear Total Reset.

12/24 CLOCK RT 255|255L|277|288|288L

TIME RT 255|255L|277|288|288L

2

Press to toggle between flashing 12 and 24 hour formats. Press

1

to select your desired format (without PM icon implies AM in 12

hour format) and advance to Time setting.

Press to advance hour digits to correct hour (hold button for rapid advance). Press to select and advance to minute

setting. Press to advance minute digits to correct minute. Press to select and advance to the next Setup Mode.

2 1 2

2

2

1

2

1

WHEEL/ TIRE SIZE RT 255|255L|277|288|288L

Press to toggle between flashing circ (circumference) and tire (tire type). Press to select the desired and advance

the settings.

If pre-set to circ (see Table of Tire Size Vs Circ), press to scroll the flashing digit to the desired number. Press to

select this number and advance to next digit. Repeat this procedure until all four digits are selected.

If pre-set to tire, press to scroll the flashing 700c, 650c, 27in, 26in, 24in, 20in or 16in. Press to select and advance

to next setting to complete the Tire Size. Again, press to scroll and press to finalize the Tire Size and advance to

the next Setup Mode.

ODOMETER RT 255|255L|277|288|288L

Press to scroll the flashing digit to the desired number. Press to select this number and advance to next digit. Repeat

this procedure until all five digits are selected. Press to advance the next Setup Mode. (Maximum setting: 99999)

TIRE SIZE CIRC

700c x 20mm 2074

700c Tubular 2130

650c x 23mm 1990

650c x 20mm 1945

27” x 1.25” 2161

27” x 1.125” 2155

26” x 2.3” 2135

TIRE SIZE CIRC

700c x 38mm 2180

700c x 35mm 2168

700c x 32mm 2155

700c x 30mm 2145

700c x 28mm 2136

700c x 25mm 2124

700c x 23mm 2105

TIRE SIZE CIRC

26” x 1.0” 1913

24” x 1.9/1.95” 1916

20” x 1.25” 1618

16” x 2.0” 1253

16” x 1.95” 1257

16” x 1.5” 1206

TIRE SIZE CIRC

26” x 2.25” 2115

26” x 2.1” 2095

26” x 2.0” 2074

26” x 1.9/1.95” 2055

26” x 1.75” 2035

26” x 1.5” 1985

26” x 1.25” 1953

2 1 1

FUNCTIONS

AUTO START RT288|288L

When Auto Start is On: The computer exit the Sleep Mode as soon

as it receives the speed signal or any button is pressed.

When Auto Start is Off: To conserve battery run time, the computer

will only exit the Sleep Mode when any button is pressed.

Press to toggle between flashing OFF or ON. Press to select

and advance to next Setup Mode.

2

F or LAP

RT 255|255L|277|288|288L

SMARTLITE RT 255L|288L

SPD

RT 255|255L|277|288|288L

SmartLite will turn on the night light for 3 seconds between pre-set intervals when any button is pressed. Press to toggle

between OFF and ON. When SmartLite is set to OFF, press to exit the Setup Mode. When SmartLite is set to ON, press to

select and advance the hour setting. Press to advance the hour digits to desired hour [range of Fr (from): 1:00 PM to 11:00 PM;

range of To (to): 1:00 AM to 11:00 AM]. Press to select and exit the Setup mode.

Speed is shown at all times on middle display. It is accurate to 0.1 M/hr or KM/hr and the

maximum reading is 139.9 M/hr or 199.9 KM/hr.

2 2

2

2

2

1

1

1

1

2

2

1

1

2 1

Press to scroll the flashing F (Freeze Frame Memory), LAP (Lap Data) and OFF (both of Freeze Frame Memory and

Lap). Press to select and advance to next Setup Mode.

Note: The icon or in the Normal Display Modes indicates F or Lap has been chosen.

2

1

2

1

1

2

1

2 1 1

1

1 2 1

21

2

The types and number of Modes of the upper screen are same as the lower screen. Depending on users’ habits, they can

decide where to put the desired Modes either on the upper or lower screen.

Press to change the Upper Screen Modes.

Press to change the Lower Screen Modes.

To enter the NOM Setup Mode, press & hold & simultaneously for 2 seconds when the lowest screen is in the CLK Mode,

Press at anytime to exit.

To reset all ride data (DST, AVG SPD, MAX SPD, RT, AVG/CAD*, MAX/CAD*) to zero, press & hold and simultaneously for 2

seconds when the lowest screen is in the DST Mode. (* RT277 Only)

1 2

2

1

1

2

3

Note: The icon Auto in the Normal Display Modes indicates the programmable Auto Start has been chosen.

2

Rating

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