Vetta V50 User manual

CYCLE COMPUTER OWNER'S MANUAL
ENGLISH

INTRODUCTION
COMPONENT ILLUSTRATIONS
Head Unit Sensor Bracket Battery Magnet
Congratulations on your purchase of the new Vetta V-50 cycle computer. The V-50 is designed with the
features and functions that you need, whether you are a road cyclist, offroad cyclist or a triathlete. The Vetta
two button design allows easy programming and operation. The digital clock and average speed readings
are two of the functions of this computer that make it ideal for training and measuring performance.

FUNCTION LIST
SPEEDOMETER (SPD) (Km/hr or Mi/hr)
Tells you your current speed on the upper line of the display screen at all times.
CUMULATIVE ODOMETER (ODO)
Tells you your cumulative distance until you perform an all clear total reset, the
battery is changed, or the unit passes 9999.9 mi. or km.
TRIP ODOMETER (DST)
Tells you the distance for your current ride from 0 to 999.99 mi. or km. Automati-
cally resets after 999.99 mi. or km. Trip odometer will commence automatically
when the bicycle wheel rotates. To reset the trip odometer to zero at the end of your
ride, press the “SET” and “MODE” buttons simultaneously.

ELAPSED TIME (RT)
Elapsed time begins when the wheel begins to rotate. It starts automatically when
the wheel is set into motion and stops when the wheel stops for over four
seconds. When one hour of riding time has elapsed, the clock display will
automatically display the time as hours and minutes. When ten hours of riding
time have elapsed, the clock will return to 0:00. Average Speed will show an
“E”for error. Distance (DST) will continue to accumulate. To clear the elapsed
time press the “SET” and “MODE” buttons while in the elapsed time mode.
AVERAGE SPEED (AVS)
Your average speed is calculated using your true ride time and trip distance. The
minimum unit that will be displayed is 0.1 Km/hr or Mi/hr.
DIGITAL 12/24 HOUR CLOCK
Gives you the time of day in a 12 or 24 hour format. To display the clock, press the
“MODE” button for one second. To change between the 12 and 24 hour clock, press
the “MODE” button for three seconds while in the clock mode. Press the “MODE”
button again to return to odometer mode.

AUTO POWER SAVING MODE (AUTO START-STOP)
As a battery saving device, Vetta computers will automatically shut down after 10 minutes of non-use. Your
V-50 will automatically restart itself as soon as the unit receives input from the wheel.
AUTO SCAN
This feature allows you to scan all display modes at 3 second intervals. To activate this feature, press the
“SET” button while in the trip distance mode. To deactivate the Auto Scan mode, press either the “SET” or
“MODE” button.
ALL CLEAR TOTAL RESET
To completely clear the unit of all information, press the “SET” and “MODE” buttons for 10 seconds. The
unit will return to the programming mode with the flashing Km/hr symbol displayed. The unit is now ready
to be reprogrammed. Do not clear the computer unless you need to reprogram the unit.
FEATURE LIST

BATTERY INSTALLATION
The V-50 uses a common LR44 1.5v button cell battery. Replacement batteries are
available at most camera shops and from your Vetta retailer. Under normal usage
a battery should last approximately one year.
NOTE: Most problems that occur
with cycle computers are caused by dead or weak batteries. If you are having
problems with your computer's operation, check and replace the battery first.
STEP 1
Remove the battery cover from the bottom of the computer by turning the
battery cap counterclockwise with a coin.
STEP 2
Install the battery into the battery compartment with the positive (+) side of the
battery facing the compartment door. Be careful when you are installing the
battery not to bend any of the battery contacts.
STEP 3
Screw the battery cap firmly into place. Make sure that the rubber o-ring seal does
not get pinched or distorted in this operation as this may compromise the
waterproofing of the unit.
LR44 1.5v Battery

WARNINGS AND CAUTIONS
Vetta encourages you to ride safely. Wear a helmet every time you ride, use front and rear
lights at night, and always keep your eyes on the road ahead of you.
Vetta cycle computers are sophisticated electronic instruments. Vetta recommends that this
product be installed only by a qualified bicycle retailer. Failure to read these instructions and improper
installation of this device may void the warranty. If you are in doubt about any aspect of the installation
or operation of this product, consult your local bicycle retailer for clarification.
CAUTION
CAUTION
“SET” BUTTON (UPPER LEFT)
The “SET” button confirms, resets, or clears numbers.
“MODE” BUTTON (LOWER LEFT)
The “MODE” button starts, stops, or moves in a loop sequence from one
function to another.
BUTTON FUNCTIONS

SETTING MILES/HOUR OR KILOMETERS/HOUR
After the battery is installed, all of the displays will be illuminated. “Km/hr” will
then appear on the screen.
STEP 1
Press the “MODE” button to switch between miles and kilometers.
STEP 2
When your selection has been made, press the “SET” button to confirm your
selection and move to the wheel circumference selection mode.
PROGRAMMING THE COMPUTER HEAD
Now that you are familiar with the features of your Vetta V-50 cycle computer, you are ready to begin
programming the unit specifically for your bike. Take a few minutes to familiarize yourself with the buttons
and their functions before you proceed to program the unit.

DETERMINING YOUR CORRECT WHEEL SIZE
Vetta cycle computers are programmed using the circumference of the wheel measured in millimeters. Note
that while your computer can be programmed to +/- 1mm for total accuracy, discrepancies of as much as
50mm or more will not have a significant effect on the accuracy of the unit for most normal rides.
The following chart lists the programming sizes for many of the most popular wheel sizes currently in use.
These numbers are estimations and may vary slightly from the size of your actual wheel depending on the
manufacturer of the tire that you are using.

WHEEL SIZE CALCULATION
If the wheel size of your bike is not listed in the chart, follow these simple steps to calculate the wheel
circumference number for your bike.
STEP 1
Measure the distance from the center of the front axle to the ground in millimeters. If you are measuring
in inches, simply multiply the number of inches by 25.4 to get millimeters. If you want total accuracy, make
this measurement while you are sitting on the bike.
STEP 2
Multiply the above number by 6.2832 (2π). The result is your wheel circumference calculated in millimeters.
STEP 3
Enter this resulting number into the computer (see next instructions).
PRESET VALUE
The V-50 has a factory preset wheel size value of 2155 (700 x 32c).

PROGRAMMING YOUR WHEEL SIZE
Once you select miles or kilometers and press the “SET” button, the V-50 will
automatically advance into the wheel size setting mode. (See SETTING
MILES/HOUR OR KILOMETERS/HOUR)
STEP 1
The default wheel size setting of 2155 (700 x 32c) will appear on the screen with
the first digit flashing. Use the “MODE” button to advance this digit (5,6,7,8...)
until the number you want appears and is flashing.
STEP 2
When the correct number appears, press the “SET” button to select that number
and advance to the next digit. When you have finished selecting your four
numbers, the screen will return to the speedometer mode. You are now ready to
install the V-50 on your bike.
STEP 3
To check the selected wheel circumference number, simply press the “SET” and
“MODE” buttons simultaneously. The circumference number will show on the
screen for three seconds.

SETTING THE CLOCK
STEP 1
In any display mode, press the the “MODE” button for one second to display the
clock screen.
STEP 2
While the clock display is visible, press the “MODE” and “SET” buttons
simultaneously to reset the clock and the last digit will start blinking. Press the
“MODE” button until you reach the desired number.
STEP 3
Press the “SET” button to confirm your selection. Continue this procedure until
the proper time is completely set.
To reset the wheel circumference number, press the “SET” and “MODE” buttons simultaneously for three
seconds to display current wheel size number. Again press the “SET” and “MODE” buttons simultaneously
for three seconds and the original number will blink. Repeat the steps above to change the wheel
size setting.

MAGNET AND SENSOR INSTALLATION
Sensor Diagram
We recommend that you install your V-50 in the following manner, starting with the
sensor unit on the fork and working up to the mounting bracket on the handlebar.
STEP 1
Mount the Vetta universal sensor loosely (so that you can slide it around) to the
fork blade using the zip-tie provided. The sensor can be mounted at any point
along the fork. However, we recommend a position on the back side near the top
of the left fork blade. This position will help protect the sensor from being hit by
rocks, tree branches and other objects.
STEP 2
Again, loosely attach the sensor magnet to one of the spokes on the left side of the
front wheel. Adjust the magnet and sensor positions by sliding both pieces around
until you get the sensor as high on the fork blade as possible while still
maintaining the necessary magnet-to-sensor spacing (1-2mm).
NOTE: The magnet should pass within 1-2mm of the sensor, and the top of the
magnet should be no higher than the top of the small arrow molded into the face of
the sensor .

Wiring Diagram
STEP 3
Route the sensor wire up the back of the fork, securing it with electrical tape.
Do not use zip-ties to secure the sensor wire to the bike because
doing so may result in cut or broken wires.
Be sure to leave enough slack in the wire to allow for the steer-
ing motion of the bike and the action of the suspension fork, if you have one.
STEP 4
Carefully wrap any excess sensor wire around the front brake cable housing,
securing with electrical tape when necessary. When you are finished, you
should have just enough slack for the computer mounting bracket to attach
to the handlebar.
Check to make sure that all of the excess sensor wire is either taped down or
wrapped around the brake cable housing so that nothing can catch on it while
you are riding.
CAUTION
CAUTION

HANDLEBAR BRACKET AND HEAD UNIT INSTALLATION
STEP 1
Attach the computer mounting bracket to the mounting band by sliding the disc on the
top of the mounting band into the slot provided on the bracket until it snaps into place.
STEP 2
Cut the plastic screw from the mounting band and place the mounting band on the
handlebar/stem with the mounting bracket facing up. Wrap the mounting band
around your handlebar/stem and through the slot on the other side of the
bracket, taking up as much slack as possible. Insert the screw into the slot as
shown and tighten the band with a screwdriver.
STEP 3
The head unit of the V-50 is designed to lock into its bracket. Slide the
computer from the front to the back until you hear an audible “snap” indicating the
unit is locked firmly in place.
STEP 4
Adjust the unit on the handlebar/stem until you are satisfied with its position, then
tighten the screw until the mounting band is secure.

STEP 5
Cut off the excess band.
Do not over tighten the mounting band as this may result in breakage
(stripped screw or mounting band). The mounting band only needs to be
tightened enough to keep it from rotating on the handlebar/stem during
normal riding.
CAUTION

INSTALLATION TEST
Once you have finished with the installation procedure, you are ready to test the unit to make sure that it works.
STEP 1
Make sure that the computer head is locked firmly into the mounting bracket.
STEP 2
Advance the computer to the speedometer mode.
STEP 3
Pick up the front of the bicycle and spin the front wheel. The computer should register speed within 1-2
seconds. If you do not get a speed reading, check to be sure that the magnet and sensor alignment is
correct and that the space between the magnet and sensor is 1-2mm or less. If this does not solve the
problem, talk to your Authorized Vetta Retailer. In the United States Vetta customers can call our service
hotline at 1.800.GO.VETTA.

WARRANTY
The Vetta companies, including Vetta USA Limited and A.H. Vetta Group Limited, warrant all Vetta
products, to the original purchaser, to be free of defects in materials or workmanship for a period of one
year from the original date of purchase. Vetta will, at its sole discretion, repair or replace any product
deemed defective. This express warranty is in lieu of all other warranties, either expressed or implied. Any
warranties of merchantability or fitness for a particular purpose are limited to the one year duration of the
above express warranty. Vetta will not be held liable for any incidental or consequential damages.

WARRANTY RETURN AND REPAIR POLICY
If you ever experience a problem with the function of your Vetta V-50 cycle computer, please visit your local
Authorized Vetta Dealer for assistance.
Should you experience a problem with your Vetta V-50 cycle computer that can not be solved by your local
Authorized Vetta Dealer, please follow the simple steps on the following pages to assure quick and
efficient processing of your claim.

STEP 1
Fill out the warranty information card within this manual.
STEP 2
Contact the appropriate Vetta Customer Service Center listed below for help and to obtain a Return Authoriza-
tion Number (RA Number).
STEP 3
Send the unit and information card back to the appropriate Vetta Customer Service Center, together with the
original copy of your purchase receipt and a detailed explanation of the problem you are experiencing. Please
be sure to write the Return Authorization Number (RA Number) on your return package.
Vetta USA Limited
650 California Street, Suite 2800
San Francisco, CA 94108-2609 USA
Phone: 1.800.GO.VETTA or 1.800.468.3882
Fax: [phone]
Email: [email protected]
Serving: US, Canada, South America, Australia,
New Zealand, and Asia
A.H. Vetta Europe Limited
c/o A.H. Italia Srl.
Via Roma 38,
Castelfranco Veneto (TV) 31033
Italy
Tel: [phone]
Fax: [phone]
Serving: Europe and the Middle East