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WARRANTY POLICY

ACUMEN INC.

 WARRANTS ALL 

VETTA

 (The Company) PRODUCTS 

AGAINST MANUFACTURER DEFECTS FOR A PERIOD OF 3 YEARS. 
Subject to the following limitations, terms and conditions, 
components will be free of manufacturing defects in materials 
and workmanship. The 3 year limited warranty is conditioned 
upon the components being used and operated in normal riding 
conditions. 

This warranty does not cover normal wear and tear 

(i.e. battery replacement, broken wire…), rider abuse, acts of 
God, improper installation or product alteration. This 
warranty is void if the components were not purchased (new) 
from or through an authorized VETTA retailer or dealer; 
examples of unauthorized dealers are online auction sites or 
online retailers that do not offer service.

ACUMEN INC. 

at its sole discretion will repair or replace items at 

its own cost. Users are responsible for all return freight shipping 
charges; when returning items for warranty service. 

ACUMEN INC. 

will pay freight when returning serviced items, via 

USPS or UPS to consumers or dealers; once the item(s) has been 
repaired or replaced. 

    

REQUIREMENTS FOR WARRANTY SERVICING

1. Prior to shipping an item back, you must first obtain a Return 

Authorization Number (s) (RA#). Each item being returned must 
have an individual RA#. 

2. To obtain an RA #, you must either contact the retailer where 

the product was originally purchased from, or contact 

VETTA

 

directly at [email protected].

3. For trouble shooting purposes, we request that the complete 

unit with packaging be returned to 

ACUMEN INC.

 unless 

otherwise stated by 

VETTA

 representative. 

Summary of Contents for V100A

Page 1: ...ime Total Time Average Speed Maximum Speed Speed Cadence LOWER SCREEN MODES Altitude Percent Grade Total altitude Maximum Altitude Clock Odometer Speed Temperature Stopwatch Intermediate Distance Stopwatch Intermediate Altitude Dual Bike Memory V100A SECONDARY FUNCTIONS FEATURES Maximum Minimum Temperature Average Cadence Maximum Cadence Maximum Percent Grade Climbing Maximum Percent Grade Descend...

Page 2: ...EAD UNIT WL WIRELESS SPEED TRANSMITTER SETUP MODE PROGRAMMING PRE RIDE ALTIMETER CALIBRATION SETUP INSTALLATION WIRED MODEL INSTALLATION Speed Sensor Magnet Mounting Bracket Head Unit WIRELESS MODEL INSTALLATION Speed Transmitter Magnet Active Mount Head Unit INSTALLATION TESTS TROUBLESHOOTING PROBLEM ITEMS TO CHECK SOLUTION TECHNICAL SPECIFICATIONS WARRANTY POLICY REQUIREMENTS FOR WARRANTY SERVIC...

Page 3: ...t this product be installed only by a qualified bicycle retailer Failure to read these instructions and or improper installation of this device may void the warranty If in doubt about any aspect of the installation or operation of this product consult your local bicycle retailer for clarification The V100A cycle computer is a general indicator of altitude it is not suitable or intended for any use...

Page 4: ...ep your eyes on the road ahead of you V100A ILLUSTRATIONS HEAD UNIT FRONT Upper Display Lower Display Lower Screen Symbols Temperature Icon Altimeter and Barometric Pressure Unit Symbols Stopwatch Icon Service Timer Icon Speed Comparator Symbol Upper Screen Symbols 1 2 3 4 5 6 7 8 9 Main Display Button 1 Left Button 2 Right Button 3 Center B C D ...

Page 5: ...A B C A B COMPONENT ILLUSTRATIONS HEAD UNIT REAR Contact Pins Battery Compartment Battery Cover B A G F D C E C O P E N CLO S E C R2032 ...

Page 6: ...racket Pad You may choose B or C according to the style of your bicycle handlebar Spoke Magnet Spacer Wired Speed Sensor Wireless Active Mount WL Wireless Speed Transmitter Transmitter Mounting Pad Wired Cadence Sensor Cadence Magnet CR2032 3V Battery Zip Ties Wire Securing Tape A23 12V Battery WL2X Wireless Cadence Transmitter optional P H ...

Page 7: ...ame display screens Hold 2 seconds in Temperature mode SPD TMP to display Maximum and Minimum Temperature Hold 2 seconds in SPD CAD screen to display Average and Maximum Cadence Hold 2 seconds in ALT screen mode to display Max uphill grade and Max downhill grade Hold 2 seconds in STP ID screen mode to switch to STP IA screen mode or hold 2 seconds in STP IA screen mode to switch to STP ID screen m...

Page 8: ...n any primary screen mode to activate Freeze Frame memory Resets RT to zero for Service Timer Starts and stops the timers and Stopwatch and is used to reset timers Stopwatch and other ride data to zero Exits Normal Operating Mode NOM Setup and advances to NOM System Check and SPD DST screen mode With RT TT timers turned OFF hold both buttons simultaneously for 2 seconds in the SPD DST primary scre...

Page 9: ...1 2 LOWER SCREEN MODES UPPER SCREEN MODES 1 1 STP ID IA CLK ODO 1 1 TOT ALT MAX ALT SPD TMP 2 2 2 RT TT AVG MAX SPD DST BI LEVEL MEMORY 1 2 SPD CAD 2 optional ALT 1 ...

Page 10: ... MODES SPEED TRIP DISTANCE RIDE TIME TOTAL TIME Ride Time and Total Time functions are shown simultaneously Ride Time RT measures actual riding time and starts automatically when the timers are set to 0 00 00 and the wheel rotates Total Time TT shows the total elapsed trip time from start to finish Like RT TT starts automatically when the wheel rotates ONLY when the timers are set to 0 00 00 or it...

Page 11: ... be manually activated or deactivated only from the RT TT screen mode Riding Tip If the bike is in motion and Button 3 is held down in the RT TT screen mode with the timers deactivated the ride timers reset to 0 00 00 When Button 3 is released both RT and TT will start with the next wheel input This is a good way to begin timing a race or training ride with a rolling start Average and Maximum Spee...

Page 12: ...he next Cadence input Note RT and TT timers MUST be activated in order for Speed and Cadence to function optional SPEED CADENCE In the ALT screen mode current Altitude is displayed in feet ft or meters m on the upper line The lower line shows the current Percent Grade of the road or trail that you are on either uphill as indicated by a whole number or downhill indicated by a number preceded by a m...

Page 13: ...during a ride is displayed on the lower line Note TOT ALT does not include descents Both Total and Maximum Altitude readings can be cleared by pressing Button 3 for 2 seconds with the timers turned off in any primary screen except STP ID or STP IA CAUTION Whenever you clear ride data between rides or during a ride you must recalibrate your Altimeter before you start riding again Otherwise the Alti...

Page 14: ...turn to the SPD TMP primary screen Note The temperature reading can sometimes vary due to the computer head unit being heated by direct sunlight which can heat the case hotter than the actual air temperature SPEED TEMPERATURE The independent Stopwatch STP is operated by Button 3 in the STP ID screen mode STP operates in conjunction with the RT TT timers icon must be visible and can be started or s...

Page 15: ...ed when the Stopwatch function is engaged To switch from the STP ID screen to the STP IA screen and back again press Button 1 for 2 seconds Intermediate Altitude does not affect Total Altitude data but it operates the same as the TOT ALT function From the STP IA screen and with the RT TT timers active press Button 3 to start the Stopwatch and the Intermediate Altitude functions running press Butto...

Page 16: ...s reset by holding Button 3 with the timers stopped both Maximum and Minimum Temperatures reset to the current Temperature DUAL BIKE MEMORY The V100A can be calibrated for two bicycles It will store separate Wheel Size Service Timer Odometer and Altitude settings as well as different formats selected for Time Temperature Speed and Distance The current bike number I or II is always displayed in the...

Page 17: ...al AVERAGE CADENCE AVG CAD MAXIMUM CADENCE MAX CAD These secondary functions can be reached by holding Button 1 for 2 seconds in the ALT screen mode This screen shows the Maximum Percent Grade attained on a current ride while climbing upper line or descending lower line The percent grade for descents is preceded by a minus sign Note This screen will flash to indicate that the computer is displayin...

Page 18: ...ed the Service Timer icon will illuminate and stay on no blinking Replace the head unit battery as soon as possible Rapid blinking of the Service icon indicates both low battery power and expiration of the preset service time interval LOW BATTERY ALERT Alerts rider when Ride Time reaches a preset limit for a maintenance check on the bike or any main component Suspension forks rear shocks chains et...

Page 19: ...reen mode Note If the Altimeter is turned OFF Freeze Frame will display only 3 primary screens SPD DST RT TT and AVG MAX Note If Ride Time Total Time RT TT is not running at the time Freeze Frame is activated Button 2 for 2 seconds then previously frozen ride and altitude data will be displayed At the end of the ride user can view both end of ride data by stopping the timers and toggling through t...

Page 20: ... To conserve battery life the V100A computer is programmed to enter a Sleep Mode after receiving no input from buttons wheel motion or cadence for 5 minutes In this mode the V100A screen displays only the time of day The computer exits Sleep Mode automatically in the wired version only when it receives input from buttons or wheel crank motion and returns to the screen last displayed In the wireles...

Page 21: ...er press all three buttons simultaneously and hold for 5 seconds in any screen mode When the computer is cleared the master screen will appear and show all LCD segments for 3 seconds The computer will then automatically enter Initial Setup mode to be reprogrammed Note Both Initial and Normal Operating Mode Setup utilize the same sequence of Setup screens Initial Setup is activated after a battery ...

Page 22: ...ge to the battery cap do not over tighten Step 1 Step 2 Step 3 Remove the battery cover from the bottom of the computer using a coin Remove the old battery Install a new battery as shown with the positive side facing out Do not touch or bend any of the battery contacts during installation Screw the battery cap firmly into place making sure the o ring seal does not get pinched or distorted HEAD UNI...

Page 23: ...transmitter battery cap is properly installed to insure good signal transmission Be sure to align the CLOSED dot on the battery cap with the CLOSED dot on the transmitter housing when you reinstall the cap WL WIRELESS SPEED TRANSMITTER A23 12V C L O S E O P E N A 2 3 1 2 V C L O S E OPE N A 2 3 1 2 V C L O S E OPE N C L O S E O P E N A23 12V C L O S E O P E N C L O S E O P E N ...

Page 24: ...ion displays All the steps in the Initial Setup mode have been pre programmed If an entry error is made complete the Initial Setup program and then re enter Setup from the Normal Operating Mode as described above to revise the setting In both Initial and Normal Operating Mode Setup press Button 2 to toggle between possible unit settings such as M hr and KM hr Press Button 1 to select a unit or val...

Page 25: ...V100A computer will retain the values and settings entered for Bike II independently of Bike I SETUP BIKE I BIKE II After the bike number has been selected the Initial Setup program automatically advances to the Altitude Units Setup screen The default setting for Altitude units is feet ft To confirm you want to see altitude readings in feet press Button 1 to select that value and advance to the ne...

Page 26: ... advance to the next screen Or if you don t want to activate the Altimeter function press Button 2 to toggle to the OFF setting and press Button 1 to select it and advance Note If the user selects Altimeter OFF the Initial Setup program will skip the Altimeter Memory programming steps below and automatically advance to the Wheel Size Setup screen SETUP ALTIMETER ON OFF ...

Page 27: ...d Buttons 1 and 2 for 2 seconds in the ALT screen mode In the Initial Altimeter Memory 1 Setup screen the display shows 5 zeros 00000 on the upper line with the right digit flashing Press Button 2 to toggle to the desired number for the elevation you intend to set and press Button 1 to select it and advance to the next digit Continue to use Button 2 to advance the digits from 0 to 9 as needed to s...

Page 28: ... press Button 1 to select it and advance to Altimeter Memory 2 setting In this screen the number 2 appears on the lower display line To program a second elevation into Altitude Memory proceed as described above for Memory 1 When the last digit for Altimeter Memory 2 elevation has been set press Button 1 to select it and advance to Initial Wheel Size Setup screen ...

Page 29: ...650c x 23mm 650c x 20mm 700c x 38mm 27 x 1 1 8 26 x 2 25 26 x 2 1 26 x 2 0 26 x 1 9 26 x 1 75 26 x 1 5 26 x 1 25 26 x 1 0 20 x 1 1 4 27 x 1 1 4 TIRE SIZE CIRC TIRE SIZE CIRC OR Mark the tire and a spot on the floor Roll the wheel forward one complete revolution until the tire mark touches the floor again and mark that spot Measure the distance between the marks on the floor in millimeters and ente...

Page 30: ...next desired number in the sequence and press Button 1 once again to select it and advance Repeat this procedure until all four digits are selected The computer will automatically advance to the Service Timer Setup screen After Altimeter Memory 1 2 values have been selected and the display advances to the Wheel Size Setup screen the letters circ appear on the lower level and the default numbers 20...

Page 31: ... on the upper line and the Service Time interval is set and displayed on the lower line In the Service Timer Interval Setup mode the hour digits appear on the lower level with the right hand digit flashing Note The default setting for the Service Timer is 0000 hours which means the Service Timer is turned off SETUP SERVICE TIMER SERVICE TIMER NOTES Accumulated Ride Time upper line operates in conj...

Page 32: ...cumulated Ride Time hours upper line to zero 0 through the NOM Setup sequence The Service Timer interval may also be reprogrammed at this point B Change TT setting to a number larger than accumulated RT C Set TT to zero 0000 disable the Service Timer The Service Timer option can be disabled in Initial or NOM Setup mode by entering and selecting a value of zero 0000 hours as the service time interv...

Page 33: ...ress Button 1 to select the desired time format and advance to the Clock Setup screen with the left hours digits flashing To set the current time press Button 2 to advance the flashing digit then press Button 1 to select it and advance to the next flashing digit Repeat this procedure for each digit until the correct time is set in hours and minutes then press Button 1 again to select and advance N...

Page 34: ...correct mileage figure is displayed 99999 maximum When Button 1 is pressed to select the final digit in the sequence the Odometer setting is completed and the computer automatically advances to the System Check screen After the Programmable Odometer is set both the Initial and Normal Operating Mode Setup programs will automatically advance to the System Check screen sequence System Check displays ...

Page 35: ...imultaneously for 2 seconds in the SPD DST screen mode with the RT TT timers deactivated Note System Check is activated in two ways A Automatically at the end of either Initial or NOM Setup and B By pressing Button 3 at any time during NOM Setup To exit System Check manually in NOM Setup press Button 3 to return to the SPD DST primary screen mode ...

Page 36: ...0A Altimeter is accomplished in two ways A By entering a known elevation for a current location or B By entering the current local barometric pressure at sea level for that moment in time A known elevation reading can be A Recalled from either of 2 elevations stored in Altimeter Memory 1 and 2 or B Entered manually based on a current location in feet or meters Or the user may find out the current ...

Page 37: ...s Button 2 again to advance to the Manual Altimeter Calibration screen Press Button 1 to advance to the Manual Elevation Setting On the upper line the digits 00000 will appear with the right digit flashing A known elevation may be entered in this screen by pressing Button 2 to increase the flashing digit to the desired number in feet or meters Press Button 1 to select the correct digit and advance...

Page 38: ...rrect number and press Button 1 to select and advance When all the digits for the inHg units have been entered press Button 1 to select that setting and advance to the ALT screen If however you wish to enter barometric pressure in Millibars mbar press Button 2 while inHg is flashing to scroll to the Millibars calibration screen with the letters mbar flashing To enter the current pressure in Millib...

Page 39: ... sensor before it starts to output a gradient reading even for steep slope say over 10 It will output a gradient reading of a slope which vertical displacement is larger than 3 5m i e it will display zero gradient if the vertical displacement of the short slope is less than 3m in height For the same reason as above the V100A may display zero or higher gradients if the user climbs a short slope fol...

Page 40: ...d x 150 meters 5 Gradients x 5 3m Trip Distance Required x 60 meters 10 Gradients x 10 3m Trip Distance Required x 30 meters V100A Cycle Computer will output and update Percent Grade of uphill or downhill when the vertical displacement is greater than 3 meters ...

Page 41: ...e around the front brake cable housing leaving enough slack to attach the mounting bracket easily to the handlebar and allow for movement of the bar and stem CAUTION When installing the speed sensor on a suspension fork make sure that the fork is fully extended to ensure there is enough wire to reach the mounting bracket properly Excess sensor wire should be taped down or wrapped around the brake ...

Page 42: ...Fig 1 Fig 2 Wired Speed Sensor Fork Leg Spoke Magnet Spoke Magnet Spoke Magnet Sweep Path Zip Tie ...

Page 43: ...Fig 4 Spacer Tip Alignment Mark Spacer Fig 3 Spoke Magnet Spoke Fig 5 Wired Speed Sensor Spoke Magnet ...

Page 44: ...ounting bracket holds its position on the bars yet can be easily adjusted Fig 7 Trim excess CAUTION Do not use zip ties but tapes provided to hold wires to the frame fork bars or stem to avoid damaging or cutting the wires accidentally MOUNTING BRACKET Wired Mounting Bracket Head Unit Zip Tie Mounting Pad Handlebar Step 1 Step 2 Fig 6 ...

Page 45: ...o position This indicates proper alignment between the computer head pins and the mounting bracket contacts To remove the computer head from the bracket gently pinch the two locking tabs inward and slide the head unit forward and out of the bracket Fig 8 Head Unit Mounting Pad Handlebar Zip Tie Fig 7 Wired Mounting Bracket Locking Tab Locking Tab Head Unit UNLOCK UNLOCK OUT IN Fig 8 Wired Mounting...

Page 46: ... fork leg as possible Fig 9 Tighten the spoke magnet to any spoke on the transmitter side of the front wheel so that it passes over the alignment mark on the transmitter Fig 9 10 Attach the alignment setup spacer to the magnet temporarily Fig 11 Slide and rotate the transmitter until the alignment mark just touches the spacer tip on the magnet Fig 12 Snug the zip ties down to hold the transmitter ...

Page 47: ...Fig 9 Spoke Magnet UP Fork Leg Zip Ties A 2 3 C L O S E OPEN C L O S E O P E N Magnet Sweep Path Spoke Magnet Spoke Fig 10 ...

Page 48: ...A23 C L O S E O P E N C L O S E O P E N Alignment Mark Spacer Tip Fig 12 A23 C L O S E O P E N C L O S E O P E N Spoke Magnet Wireless Speed Transmitter Fig 13 Spacer Spoke Magnet Spoke Fig 11 ...

Page 49: ...ch the active mount and mounting pad to the handlebar Adjust its position to your liking and tighten the zip ties Fig 14 15 ACTIVE MOUNT Wireless Active Mount Head Unit Zip Tie Mounting Pad Handlebar Fig 14 ...

Page 50: ...Head Unit Mounting Pad Handlebar Wireless Active Mount Zip Tie Fig 15 ...

Page 51: ... front to the back and lock into position You should hear an audible CLICK when the head unit has been properly locked into position This indicates proper alignment between the computer head pins and the active mount contacts To remove the computer head from the mount gently pinch the two locking tabs inward and slide the head unit forward and out of the mount Fig 16 ...

Page 52: ... vetta com IMPORTANT Following the installation tests above make sure that the spoke magnet locking screw and all zip ties are properly tightened Tips Rotating the angle of the transmitters or the handlebar receiver slightly can sometimes improve the signals being sent and received Some bicycles have unusual frame tubes and angles so by adjusting the components can aid in trouble shooting by align...

Page 53: ...mference setting bike etc Review data in System Check mode and revise as needed Altimeter reading is wrong Altimeter needs to be re calibrated See sections in Setup for instructions on how to recalibrate the Altimeter through elevation or barometric pressure settings IMPORTANT The Altimeter must be re calibrated before every ride Data display is extremely slow Computer LCD does not operate well in...

Page 54: ...battery Screen readings are erratic and read too high or too low Symptom of a weak battery Replace the battery Screen frozen no response to buttons Symptom of a weak battery Replace the battery No display whatsoever Battery is completely dead or not installed Replace or install the battery ...

Page 55: ...hr Updated once per second 0 0 120 0 KM hr 0 0 75 0 Mi hr 0 1 KM hr or Mi hr Updated once every 0 1 MilesorKmtraveled Limit 120 0 KM hr 75 0 Mi hr 0 99999 km or miles 0 0 999 9 km or miles 0 1 km or mi Range 0ºC 49ºC or 32ºF 120ºF 1ºC or ºF Range 660 to 16 500 feet or 200 to 5000 meters 10 feet or 3 meters Range 11 8 to 32 inHg or 400 to 1100 mbar TECHNICAL SPECIFICATIONS ...

Page 56: ...ax 1 hr Limit 9 59 59 10 hrs 1 0 seconds Range 999 9 km or miles 5000 meter minus the current altitude when activate the IA feature Limit 9 59 59 10 hours displayed in hr min sec After 9 59 59 display restarts at 0 00 00 Range 15 255 RPM 1 RPM Head Unit CR2032 3 volt battery WL Wireless Speed Transmitter A23 12 volt battery HeadUnit Wired 260 days Wireless 150 days WL Wireless Speed Transmitter 18...

Page 57: ...nline auction sites or online retailers that do not offer service ACUMEN INC at its sole discretion will repair or replace items at its own cost Users are responsible for all return freight shipping charges when returning items for warranty service ACUMEN INC will pay freight when returning serviced items via USPS or UPS to consumers or dealers once the item s has been repaired or replaced REQUIRE...

Page 58: ...A will be refused and returned to the return address on the package The Company shall not be held responsible to replace items with new items for greater than the amount of the original item purchase price This limited warranty does provide the original owner with certain legal rights and recourse The original owner may possess other rights or recourse depending on the state or country Please chec...

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