Service Manual

ManualsBrandsAcumen ManualsCyclometerRT233 Cyclometer

Vetta’s RT233 is an upgraded version of RT33 cycle computer. It is recommended that this product to be installed by a

qualified bicycle retailer. Failure to read the instructions and/ or improper installation of this device may void the

warranty. If you have any doubts about the installation or the operations, contact your local bicycle retailer for

clarification.

Important: Do not use Zip-Ties, use the tapes provided with the package to hold wires to the frame, fork, bars or stem

to avoid damaging or cutting the wires accidentally. Make sure excess wire is taped down or wrapped around brake cable

housing to secure it.

The Head Unit uses a CR2032 3-Volt Lithium button cell

battery.

Battery Run Time (1 hour training / day): Approx. 12 months

Important: Most cycle computer problems are caused

by weak or dead batteries. See the Trouble Shooting

section near the end of the manual for details.

1. Remove the battery cap from the bottom of the Head Unit using a coin.

2. Install a new battery as shown with the positive (+) side facing out. Do not touch or bend

any of the battery contacts during installation.

3. Screw the battery cap firmly into place making sure the O-ring seal does not get pinched or distorted.

Caution: To avoid damage to the battery cap, do not over tighten.

WARNINGS & CAUTIONS

ILLUSTRATIONS

BATTERY INSTALLATION

INSTALLATION

HEAD UNIT

COMPONENTS

RT233

1. Button

2. Button

3. Main Display

4. Contact Pins

5. Battery Compartment

6. Battery Cap

Standard Harness

Replaceable Front Cover

2 Screen Display Windows

EZ Tire Set

Service Timer

Auto Awake & Start-up

Current Speed

Cumulative Odometer

Trip Distance

12/24 Hour Clock

FUNCTIONS / FEATURES

1. Wired Speed Sensor with Mounting Bracket

2. Extra Clear Front Cover

3. Bracket Rubber Pad

4. Bracket Rubber Pad (Riser Handlebar)

5. Bladed Spoke Magnet

6. Spacer

7. Head Unit Battery (CR2032, 3-Volt)

8. Wire Securing Tape

9. Zip-Ties

BUTTON FUNCTIONS

HEAD UNIT

Press momentarily

Button : Lower Screen Modes

Press & hold for 2 seconds

Button & when the lowest screen is in the CLK Mode: NOM Setup

Button & when the lowest screen is in the DST Mode: Reset Ride Data

1.0

Attach the Wired Speed Sensor with the Zip-Ties supplied and tighten the Bladed Spoke Magnet to the bicycle. Mounting

the sensor as high up as on the fork leg (see Fig. A). Adjust the sensor and magnet spacing with the Spacer. Remove

the Spacer after snugging the Zip-Tie down to hold the sensor in its final position.

WIRED SPEED SENSOR & MAGNET

Wired Speed Sensor

Fork Leg

Bladed

Spoke Magnet

Bladed

Spoke Magnet

Bladed

Spoke Magnet

Bladed Spoke Magnet

Spoke

Magnet

Sweep Path

Zip-Tie

Spacer

Spoke

Spacer Tip

Alignment Mark

Fig. A

MOUNTING BRACKET & HEAD UNIT

Attach Mounting Bracket & Bracket Rubber Pad to

the handlebar on the “Sensor 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 Wired 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

INSTALLATION TESTS

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

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

SERVICE TIMER

SETUP & PROGRAMMING

12/24 CLOCK

TIME

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

RT233 is programmed to enter the Initial Setup Mode after new battery replacement.

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.

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.

Important: Computer CANNOT exit during the Setup Mode until all the Basic Settings are finished.

1 2

If there is no speed-reading, check the alignment and spacing between the magnet and sensor. 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 magnet locking screw and all Zip-Ties are properly tightened.

Press to toggle between flashing 12 and 24 hour formats.

Press

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.

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

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 )

SPEED/ DISTANCE UNIT

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

time battery

installation, new battery replacement or All Clear Total Reset.

2 1 2

Summary of content (2 pages)

PAGE 1
WIRED SPEED SENSOR & MAGNET Attach the Wired Speed Sensor with the Zip-Ties supplied and tighten the Bladed Spoke Magnet to the bicycle. Mounting the sensor as high up as on the fork leg (see Fig. A). Adjust the sensor and magnet spacing with the Spacer. Remove the Spacer after snugging the Zip-Tie down to hold the sensor in its final position. RT233 Bladed Spoke Magnet Fig. A 1.
PAGE 2
1 2 CLK 1 Time is displayed in user-selected 12 or 24 hour formats. 2 1 2 1 OTHER FEATURES 2 SLEEP MODE 1 2 OR OR 2 1 2 2 Computer enters Sleep Mode after 5 minutes without input from any buttons or wheel, and displays the clock only. Computer exits Sleep Mode and returns to the screen last displayed when any button is pressed or the wheel turns.