OWNER`S MANUAL
Contents
1. Copyright Copyright 2003 All rights reserved No part of this publication may be copied photographed reproduced translated transmitted electronically or placed on digital media without the prior written consent of Saris Cycling Group Inc Trademarks Saris Cycling Group Inc PowerTap and the PowerTap logo are all registered trademarks of Saris Cycling Group Inc All other product brand or trade names used in this manual may be trademarks or registered trademarks of their respective owners Modifications Saris Cycling Group Inc reserves the right to make improvements and or updates to the products described herein at any time without notice Saris Cycling Group Inc 5253 Verona Road Madison WI USA 16034A 12 04 www cycleops com Patents Issued and Pending 1 800 783 7257 Patent 6 418 797 CONTENTS Introduction System Overview Wheel Building System Installation PowerTap SL Receiver Installation PowerTap SL General Operation PowerTap SL Computer Navigation PowerTap SL Interval Mode PowerTap SL Computer Set Up Maintenance amp Specifications Hub Batteries O ring Replacement Test Mode Trouble Shooting Warranty and Technical Support INTRODUCTION amp PRECAUTIONS Thank you for your purchase of the CycleOps PowerTap Power is the ultimate measure of performance No other equipment will give you greater return on your investment For more information regarding training with power please go to our Web2. 3 Thread the cap all the way back on s Replacement O rings and battery D 9 packs are available from Saris 2 Cycling Group A 27 TEST MODE Starts when the t is selected from the setup menu Lights the interval memory mode M icon and small number to left of it Mode scrolls through the different test modes as shown by the number Select generally performs the numbered item unless there is to be other inputs are being tested for i Pressing Mode and Select together for longer than 2 seconds returns to standard operation 0 Model and version Displays the model on the middle line and version number on the bottom line 1 LCD test When Select is pressed all the LCD segments are displayed Press Select again to return to the normal screen 2 Receiver test signal Note the receive icon is displayed The middle line display flashes 88 with each blip of data from the receiver whether valid or not 3 Heart rate signal test Note the heart icon is displayed The middle line display flashes 88 with each heart rate blip received 4 Bike computer wheel magnet sense detect Note the MI KM icons are displayed The middle line display flashes 88 with each sensing of the wheel magnet next to the receiver 5 Cadence test Note the C icon is displayed The top line display shows crank cadence sensor RPM The middle line flashes 88 with each pulse from cadence sensor The bottom display shows cadence RPM va
3. SETUP 1 Push either button to activate the computer Press select to choose the desired set up and Note the version of firmware is displayed in the press mode to begin set up lower corner shown below E exit return to ride mode d restore default settings T Test Mode Setup modes 1 4 see following pages Note computer illustrations on the following pages display the factory default settings 2 To enter the set up main menu hold down both buttons until the main menu is displayed Main Menu 15 POWERTAP SL COMPUTER SETUP PowerTap SL The PowerTap SL has three levels to the display Press the Mode button to change levels the active level is indicated by the black arrows and press the select button to change the function displayed within the level Ave and max for watts and speed distance time cadence ave cadence energy expenditure in kilojoules odometer heart rate and ave heart rate for the multi display 16 POWERTAP SL COMPUTER SETUP 1 Month 9 3 Q Press select button to select 12 or 24 hour clock Press mode button to save Press select button to select year month and date Press mode button to advance Press select button to select AM A or PM P Press mode button to save Press select button to select the storage rate 1 2 5 10 or 30seconds Press mode button to save Press select button to change digits Press mode butto
4. can be useful for allowing for better pacing during Time Trial efforts by allowing for a slower update of the display Press select button to set rate of display for cadence rolling average Press mode button to save This function is useful for customizing how smooth the cadence display is for cadence based workouts 1 sec display updates approx every second 3 every 3 seconds etc Note These settings DO NOT affect the data that is stored for download or go do it Press select button to set rate of display for heart rate rolling average reg regular averaging slo slow averaging fst fast averaging Press mode button to save This function can be useful for allowing for better pacing during Time Trial efforts by allowing for a slower update of the display Press select then mode to reset defaults press mode to save changes 19 POWERTAP SL COMPUTER SETUP 3 PRU Hy LOTT V WATT Press select button to select YES or NO for zeros included in aver aging of watts Press mode button to save This is useful if you are curious what your aver age power is when you are pedaling only O a 6 8 3 Press mode to select YES or NO for zeros included in averaging or speed This is useful if you are curious what your average speed is when you are pedal ing only Press select button to select if zeros are included in Cadence average Press mode button to
5. download file If the CPU is in 2 second mode this max time error 2 seconds at the start and or stop can be as much as 4 seconds off The individual raw data records written to memory are extremely accurate In fact the data has been proven in lab oratory testing to be accurate to 1 5 This means the data downloaded to the Link accurately represents what was happening on your bike second by second How we repackage the data to make it useable does not affect or detract from its accuracy it s just making it more user friendly 31 TROUBLESHOOTING and maximums on the PowerTap computer display This reduces the jumpiness of the numbers and makes it easi er to use while riding The data saved for download is raw exactly as it is sent to the hub In the CPU set up mode press MODE and SELECT buttons simultaneously until you see SETUP you can select 1 or 2 sample recording If you select 1 the data is sent to the CPU from the hub at 1 second intervals The 1 second mode will save every data point sent from the hub If you select 2 the data is sent to the CPU at 2 second inter vals The 2 second mode will in effect save only every other data point sent from the hub Therefore in the 2 sec ond mode Maximums can be missed So between the averaging and the save rate the data download will be different In the 1 second mode the down load data is always most accurate The second issue is time differences The data points used
6. for display on the CPU may not coincide perfectly with what is stored to memory There can be up to a 1 sample or 1 second loss at the start and stop of a download file If the CPU is in 2 second mode this max time error 2 seconds at the start and or stop can be as much as 4 seconds off The individual raw data records written to memory are extremely accurate In fact the data has been proven in labo ratory testing to be accurate to 1 5 This means the data downloaded to the Link accurately represents what was happening on your bike second by second How we repackage the data to make it useable does not affect or detract from its accuracy it s just making it more user friendly Some of the values on the ride chart don t make any sense don t remember going 170 miles per hour The scale on both the right side and the left side of the graph consolidates several measured values and therefore must share the common vertical axis So to avoid tall power curves and extremely short speed curves the speed is shown as a multiple of 10 Sometimes interference can cause inflated values you can change these values in the CSV file by replacing the out of place number with a more realistic number such as that which precedes and follows the invalid number Tips on Installation Do not have any other applications running while doing the installation If there are lots of items in the system tray turn some off or disable for the installat
7. save This is useful if you are curious what your aver age cadence is when you are pedaling only Note These settings DO NOT affect the data that is stored for download POWERTAP GycieOns PRU or go do it POWERTAP PRU Q 4 10 5 Torque auto zero function Normally leave at yes This is useful for track bike use where large negative torque may be present Note Hub modification to fixed gear is necessary Press select then mode to reset defaults press mode to save changes 20 POWERTAP SL COMPUTER SETUP 4 POWERTAP PRU Press select to set how many minutes the CPU will stay awake after not receiving a valid speed or heart rate signal The shorter the sleep time the better the battery life Press select button to select what is displayed in the middle line mi speed c cadence heartrate Also whatever is selected will flash during the ride to indicate what is displayed in the middle screen Note that if heart rate or cadence is selected speed is not displayed at all This function is useful for intervals when power heart rate and cadence are of most concern Press select button to select the cadence information source Default pedal then hub Pedal crank only Hub hub only 21 POWERTAP SL COMPUTER SETUP 4 The PowerTap Pro allows you to use the unit as a cycle computer or heart rate monitor only Fig 8 illustrates t
8. AP SL GENERAL OPERATION General Operation of Computer The PowerTap SL has three main displays power display top speed display middle and multi function display bottom There are two main modes of operation in the PowerTap trip mode and interval mode Mode Button Press the mode button to scroll between the different displays The active display is indicated by small black triangles at the left and right side of the display Hold the mode button down for two sec onds to toggle between trip and interval modes The INT icon will illuminate when you enter interval mode as well as the current interval number Select Button Press the select button to select which function is shown on the current display The current function will remain on the display even when the mode but ton is used to move to another display Menu Both Buttons Hold both buttons for 2 seconds to enter the scroll ing menu There are two options to select by releas ing the buttons clr to clear all data and the main menu to enter setup See page XX for set up infor mation Power Conservation f The computer and hub have power saving features to prolong battery life The computer powers down the display after 4 minutes of inactivity Press one of the buttons to activate the display Similarly the hub powers down after two minutes of inactivity The transmission icon will not be visible when the hub is asleep Spin the wheel momentarily and the icon
9. all axle Apply 2 grams of high quality freehub grease to the ratchet ring Grease the V seal and place it on the freehub and install onto shaft Replace end nuts Torque end nuts to 12 Ibs ft 24 SL Hub for Shimano system Steel washer installed here Aluminum washer j L installed here n wN Steel washer _installed i No aluminum washer SL Hub for Campagnolo system 25 MAINTENANCE amp SPECIFICATIONS Computer Batteries The PowerTap SL has batteries in the hub and computer Computer batteries typically need to be changed every 1 000 km or approximately every 100 hours of use The cpu will also say ow bat when the cpu bat tery needs to be changed This message is displayed after a clr is performed To replace computer bat tery Type CR2032 remove the computer from the mount Remove the battery cover on the back of the com puter it works best to use a cone wrench to remove the battery cover exchange the battery and replace the the cover as shown below Technical Specifications Accuracy 1 5 Signal Transmission Digital RF Interval Data Storage unlimited Interval Display 9 intervals Operational Temperature 0 to 40 C Battery Life Hub 300 hours approx Battery Life Computer 100 hours approx Battery Type Hub 357 1 55Volts ANSI NEDA 1131SO IEC SR44 Battery Type Computer CR2032 ANSI 5004LC Range of Measurement Power 0 1999 watts Torque 0 1999 inch lb
10. all the raw data CSV files you can always start over by importing the files again Remember that you can always delete a ride and rider from the database to start over Data Differences Between Link and PowerTap Computer There are two issues here data inconsistency and time differences First the display on the PowerTap CPU has a 3 sample running average This 3 sample average is used for displaying averages and maximums on the PowerTap computer display This reduces the jumpiness of the numbers and makes it easi er to use while riding The data saved for download is raw exactly as it is sent to the hub In the CPU set up mode press MODE and SELECT buttons simultaneously until you see SETUP you can select 1 or 2 sample recording If you select 1 the data is sent to the CPU from the hub at 1 second intervals The 1 sec ond mode will save every data point sent from the hub If you select 2 the data is sent to the CPU at 2 second intervals The 2 second mode will in effect save only every other data point sent from the hub Therefore in the 2 second mode Maximums can be missed So between the averaging and the save rate the data download will be different In the 1 second mode the down load data is always most accurate The second issue is time differences The data points used for display on the CPU may not coincide perfectly with what is stored to memory There can be up to a 1 sample or 1 second loss at the start and stop of a
11. aris Cycling Group Inc at 1 800 783 7257 38 FCC Statement of Compliance This device complies with part 15 of the FCC Rules Operation is subject to the following conditions 1 This device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesirable operation Note This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a normal installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guar antee that interference will not occur in a particular installation 39
12. d distance Make sure you have a downloadable PowerTap cycle computer If the computer reads either Prologue in yellow letters on the right side of the screen or tune on the left side of the screen you do not have a downloading computer The serial number on the PowerTap computer should be 13329 or high er There is a way to download the PowerTap data without starting up the Link software If you are familiar with MS DOS commands check under the Start menu in Programs click on MS DOS Prompt Go to the directory where you have your Link software installed Once there type ptapd samp com n out file_name csv Where n is the serial port to which your PowerTap is connected and file_name is your choice This command will create a CSV file and download the PowerTap memory to the file Check to see if PowerTap computer battery is dead If you still have trouble after reviewing this section please call Customer Service toll free at 1 800 783 7257 37 WARRANTY AND TECHNICAL SUPPORT Warranty and Technical Support If you find a problem you cannot solve yourself or with the help of your dealer try one of the support options listed below In most cases problems can be resolved via one of these channels with a minimum of downtime Web site http www power tap com E Mail custsrv saris com Phone 1 800 783 7257 Fax 608 274 1702 Warranty Saris Cycling Group Inc warrants its PowerTap products aga
13. e on the handlebar Line up the slots on the base of the computer with the bracket Slide completely into computer mount see figure 4 5 Heart Rate Monitor Strap Position the heart rate monitor strap on your torso as pictured in figure 6 The strap should rest just beneath the pectoral muscles of the chest Make sure the electrodes on the strap are slightly moist where it contacts the skin for best results The heart rate strap must be worn to enable the heart rate functionality of the PowerTap see figure 5 The chest strap is not coded 6 Verify Installation Check all the components to make sure they are securely attached Spin the rear wheel and verify that the transmission icon on the computer display is illuminated This indicates that the hub is sending a valid signal through the receiver to the cpu see figure 6 Adjust the receiver if necessary Figure 6 Transmission icon in upper left corner of display 8 POWERTAP SL RECEIVER INSTALLATION PowerTap Pro Cadence Wire Attach cadence magnet to crank arm so the center of the magnet passes the wired end of the sensor unit Do not center the magnet in relation to the sensor PowerTap Models ZN ere Black CPU Yellow 1 CPU Yellow 2 CPU PowerTap Recording Rates 1sec 2 sec 5 sec 10 sec 30 sec al 3 5 7 NA NA NA yelow z5 15 30 60 180 Yelow2 4 30 60 120 360 43 690 data points available 10 POWERT
14. es the proper tools and experience If you are unsure of any step of the proce dure or do not have all of the tools necessary for installation contact your local dealer for assistance Package Contents Qty Item PowerTap hub or built wheel PowerTap computer Receiver Chest strap Foam mounting tapes Cable ties Training With Power guide by CTS Product registration card PowerLink Lite CD Link cable Cadence Magnet Pro Model Only Cadence Sensor Cable Ties Extra CPU Battery N E E E E nnn E E SYSTEM OVERVIEW Compatibility The PowerTap SL hub is compatible with Shimano 8 9 and 10 speed systems or Campagnolo 8 9 and 10 speed Free hub bodies may be interchanged See page 24 for instructions Only insert the correctly spaced PowerTap hub into your frame For example only use a 1830mm spaced hub in a 130mm road frame Do not force the hub into any frame Doing so may cause failure of the frame hub or both and will void the warranty Contact your dealer or PowerTap to address any special compatibility issues WHEEL BUILDING Contact your local wheel building professional or dealer for assistance in building the PowerTap hub if not provided as a complete wheel The flanges are drilled for 14 or 15 gauge spokes Use at least a two cross pattern on both sides of the hub Due to the design of the hub the load path is not the same as with a conventional hub Slotting the hub flanges to accommodate bladed spokes is
15. he Power Meter Mode Press mode to leave in this set ting Push select to change to cycle computer mode Press select to choose autostart control by speed fig 11 This will allow trip time to count whenever wheel speed is registering If speed is not registering trip time will stop after 3 seconds Figure 9 illustrates cycle com puter only mode This mode requires a wheel magnet on a non PowerTap rear wheel Align the magnet towards the bottom edge of the receiver so that it passes within 3mm of the receiver Press select to choose autostart control by heart rate fig 12 This will allow trip time to count as long as heart rate is registered This function is useful for transitioning from cycling to running and vice versa POWERTAP PRU 9 a Q 5 d Push select until display looks like fig 10 for heart rate only function When this is in use all that will be displayed is current heart rate average heart rate trip time and time of day Press mode button to save do it press select button then mode to reset defaults 22 MAINTENANCE amp SPECIFICATIONS The PowerTap SL uses a completely new free hub axle and bearing design that should provide many miles of trouble free training and racing The following information will help you keep your PowerTap SL running properly If you are not familiar with hub maintenance please consult a pro fessional bicycle mechanic before servicing Du
16. hown with MI or KM and the MX icon on the speed display Average Speed This function displays average speed in miles or kilometers per hour Average speed dis plays with MI or KM and the AV icon on the speed display IMPORTANT How To Zero Torque Occasionally the torque must be zeroed to ensure that the PowerTap displays the most accurate power information If the instantaneous power is positive or negative while coasting the torque needs to be zeroed This operation must be done while coasting with no tension in the chain or while stationary with no force being placed on the ped als Also the transmission icon must be illuminated To zero torque hold down the select right button for two seconds to enter torque mode Then hold down select again until 0 is shown Push select once to return to watts The torque value will now read zero 12 POWERTAP SL COMPUTER NAVIGATION g Distance D 5 Total trip or interval distance is displayed in miles or kilometers from 0 00 to 999 99 The D icon is shown on the multifunction display Distance displays in the same units as speed Odometer O Total accumulated distance travelled since the last system reset is displayed in whole miles or kilometers Trip Time amp Time of Day T The timer displays trip or interval time to 9 59 59 The trip time auto starts and auto stops with rotation of the wheel Time of Day The real time c
17. inst defects in manufacturing and workmanship for a period of one year beginning at the date of purchase or from the date of man ufacture in the absence of a proof of purchase In the event of a warranty issue Saris Cycling Group Inc will repair or replace the item at its discretion Saris Cycling Group Inc is not responsible for any indirect or consequential costs or damages associated with the warranty of the product Our products are not covered under warranty in cases exhibiting signs of abuse improper maintenance or installation crash using the product with non compatible components or using the product for purposes for which it was not designed This warranty is also void if the product has been modified from its original form including changes in aesthetics serial numbers or logos Saris Cycling Group Inc is not responsible for basic hub mainte nance such as re packing bearings and bearing adjustments Warranty Procedures If it appears that a PowerTap component is not working properly please take the time to inspect and troubleshoot the system as best as possible In many instances solutions may be as simple as replacing a bearing or adjusting a sensor Often small parts can repaired at the shop instead of the longer and more expensive option of sending the unit back for repair If you feel the need to warranty your PowerTap please return your product through the channel that you pur chased it from or contact S
18. ion process If there is a long pause during the installation do not do anything The program may be busy and a shutdown could cause a disruption There is benefit to uninstalling from the CD If the program has been installed or partially installed and the CD is put in and allowed to autorun it will detect the current installation and offer the choice to uninstall This uninstall does a much better job of uninstalling than manually uninstalling or using the native windows uninstall system The Link software will often run correctly after it has been uninstalled with the CD and then re installed Tips on Serial Ports The normal serial port connector is a trapezoid shape with rounded corners and has nine pins It is about 5 8 wide 32 TROUBLESHOOTING and 3 8 tall The technical name is a DB 9 connector Serial ports are a very finite resource on the computer It can have many but only two can be used at one time Devices that use serial ports are Digital camera PDA Personal Digital Assistants like Palm Pilot Mouse Modem Check the computer BIOS that the serial ports are turned on and in a normal state The plug and play mode should work for most computer setups Sometimes this does not work and the default manual settings should be used Note that Windows NT will not recognize the plug and play settings USB converters may be used for laptops or desktop machines without a serial port connection but we recommend u
19. lock may be accessed by holding select for two seconds To return to trip or interval time hold down select for 2 seconds Cadence C The rate of pedaling is shown from 20 Ml_ to 240 RPM For quick access to the Ad cycle computer function hold down Z select for two seconds while display ing current cadence Heart Rate Current heart rate is shown up to 255 beats per minute You must wear the heart rate chest strap to enable heart rate measurement and the hub transmission icon must be on Note PowerTap uses a non coded chest strap For heart rate monitor function only hold select for 2 sec onds while displaying your heart rate Average Cadence C AV wage ii a The average of the cadence is This value is a running measured in RPM Both the C and average of the heart rate AV icons are illuminated on the mul in BPM If there is no heart tifunction display when this mode is rate information this will active display as 0 Both the heart and AV icons are Energy Expenditure E shown while in this mode The total work done over the course of the trip or interval is shown in kilojoules This value is a measure of the total energy expended over the course of nng your ride This is roughly equivalent to aa dietary calories expanded 13 POWERTAP SL INTERVAL MODE SL Interval Mode The PowerTap Pro Interval mode functions differently than the previous PowerTap computers It works as a lap marker a
20. low mend using a Cone Wrench to remove if there is any condensation on the battery cover If there is leave cover off ure disappears sure you are not setting up the PowerTap inside a building with a lot of elec ines Bring the PowerTap outside or away signal returns Also make sure you don t have any other devices on your omputer sensors replace batteries as shown on pages 14 15 of the User Manual We recom he battery cap not a coin Check the PowerTap Receiver wire and computer mount for damage Displayed data blinks or does not func Batteries need replacement replace tl Computer not seated in mount make Interference with other devices make trical noise neon signs or near power from the electrical disturbance to see i bike such as lights magnets or cycle c Check for damage to receiver amp comp Power seems incorrect tion he computer batteries as shown on pages 14 15 of the User Manual sure computer is firmly and correctly mounted in handlebar mount sure you are not setting up the PowerTap inside a building with a lot of elec ines Bring the PowerTap outside or away signal returns Also make sure you don t have any other devices on your omputer sensors uter mount Torque value is not zeroed to manually read zero torque go to current watts and hold down the select button until watts disappears Torque is now being displayed To zero torque hold down the select button until
21. lue from the hub 6 Torque information Note the T icon is displayed This displays information about the internal workings of the torque readings The bottom display is the offset torque value directly sent by the hub torque with no correction applied The hub sends a value of approximately 512 as the zero point The middle line display is the correction 28 TEST MODE offset value currently stored in the CPU This is the value that is changed when you do a manual zeroing of the torque The top display is the corrected actual torque the bottom value minus the middle value 7 Standard test file This mode writes a small test file to the memory Press the Select button and the bottom lines says run and then yes when the file is written This file can then be downloaded 8 Communication loop back test When looking at the front side of the CPU use a coin or paper clip to short out the two pins on the left side Then press the Select button The bottom line will say run and then yes if it pass es the test correctly If the pins are not shorted together or there was a problem the display will say no This test can be repeated by pressing the Select button 9 Fast Memory test This does a quick test of the memory in the CPU Press Select and it displays run on the bottom line When the test is completed and it passes it says yes If the test should fail the bottom line will say no 29 TROUBLESHOOTING Rec
22. mes and it is not necessary to ride the bike Important The CPU must receive a valid signal from the hub as indicated in the upper left hand corner of the LCD display Once you have completed all three steps noted above the CPU will be in its normal power conserving mode and can be removed from the bike receiver shoe Download Trouble Shooting Download Techniques After the PowerTap computer is placed in the download cradle the file that is stored in the computer has a marker 35 TROUBLESHOOTING 1 Remove the CPU from the Link download cradle immediately after the download is completed Leaving the CPU on the download cradle will contribute to excessive battery drain Important Just removing the CPU from the download cradle and allowing it to go into the blank LCD sleep mode does not return it to its normal power conserving mode and you must complete the next two steps 2 Place the CPU into the bike receiver shoe and wake it up by pressing either button 3 Turn the rear wheel enough to allow the CPU to receive a valid signal The rear wheel is only required to turn a few times and it is not necessary to ride the bike Important The CPU must receive a valid signal from the hub as indicated in the upper left hand corner of the LCD display Once you have completed all three steps noted above the CPU will be in its normal power conserving mode and can be removed from the bike receiver shoe Download Trouble Sh
23. n to advance Run Time Different storage rates yield different amounts of total storage time Refer to the chart on left to select the most appropriate storage rate 17 POWERTAP SL COMPUTER SETUP 1 Press select button to change digits Press mode button to advance to next digit Refer to wheel circum ference guide for correct tire circumfer ence A roll out meas urement mm of the rear wheel will give greatest accuracy Tire Size 24 x1 26 x1 26 x1 25 26 x1 5 26 x 2 0 26 x 2 125 27 x1 27 x11 8 Press select button to select English or Metric units Press mode button to save Wheel Circumferences Circ mm 1753 1913 1953 1986 2055 2070 2125 2139 Tire Size 27 x1 1 4 700C tubular 700 x 20C 700 x 23C 700 x 25C 700 x 28C 700 x 32C 700 x 38C Circ mm 2152 2094 2084 2096 2108 2116 2136 2170 Press select button to select starting Odometer reading Press mode button to save Note Odometer settings are saved during battery changes 18 POWERTAP SL COMPUTER SETUP 2 PRU Wy LIATH V URT Press select button to set rate of display for watts rolling average Press mode button to save This function can be useful for allowing for better pacing during Time Trial efforts by allowing for a slower update of the display Press select button to set rate of display for speed rolling average Press mode button to save This function
24. nd is essentially always on To begin the first interval or advance the interval simply press both buttons down simultaneously from any location or mode in the display INT and the new interval will briefly appear before disappearing again to the back ground To view interval specific information duration distance averages etc simply hold down the mode button for two seconds This brings inter val mode to the foreground INT and the interval number will constitute a fourth line in the display see picture at right When you wish to relegate the interval information to the background again simply depress the mode but ton for two seconds SL Interval Memory Mode To access stored interval information select INT by pushing mode until INT blinks Then hold select for 2 seconds until M appears next to the interval number indicating you are now viewing interval information Push select to advance to the interval you wish to view and push mode to select the information you wish to view Ave watts cadence etc To exit Interval Memory Mode hold mode for 2 seconds Note that recovery period s as well as work periods are displayed in memory mode SL Interval Shortcut To quickly mark intervals simply push both buttons simultaneously from either trip or interval mode If in trip mode INT will briefly appear indicating you have marked an interval and which number interval you are on 14 POWERTAP SL COMPUTER
25. not recommended and will void the warranty Reference a spoke length calculator when building a wheel Wheel Building Dimensions Measurements Non Drive Spoke hole diameter 2 5mm SYSTEM INSTALLATION 1 Insert Wheel Into Frame Insert the complete built PowerTap wheel into the frame Make sure the axle is correctly positioned in the dropouts and secure wheel in place with a steel skewer 2 Attach Receiver To Seat Stay Place foam tape between the receiver and frame for a slip free fit If necessary rotate receiver to within 5 degrees of parallel with the hub battery cover before tightening cable ties Mount receiver a maximum of 3 inches from the axle Mount the bottom of the f receiver a maximum of 3 inches from the axle Mount receiver within 5 degrees of parallel with the hub battery cover Receiver Compatibility Chart Receiver Standard Compatible Compatible Compatible Compatible Compatible Incompatible Compatible Compatible Compatible SYSTEM INSTALLATION 3 fy Figure 3 Mounting of computer shoe Figure 4 Attaching of computer Figure 5 Placement of heart rate strap 3 Attach Computer Mount to Handlebar The computer mounts to the handlebar in a similar fashion Position the foam mounting tape beneath the mount and secure with cable ties to handlebar The head of the cable tie fits flush into a recessed cavity on the mount 4 Place Computer Place the computer into the mounting sho
26. nstall program on the CD and then re install 36 TROUBLESHOOTING Is the link on the same Com port that the software is set for The default is Com 1 If not set to the same Com port Is there PDA hot sync software running If there is disable hot sync software Are other programs or applica tions running Does it work on another computer If the Link software installs and you can successfully download data on another computer you will need to dei all of the above items Does it work with HyperTermi ermine what is interfering by walking through nal See Tips on Testing Serial Ports and PowerTap Hardware with HyperTerminal The PowerTap computer may have fallen asleep while connected to the serial cable Try pressing one of the PowerTap buttons either MO DE or SELECT to wake it up Notice however that by pressing one of the buttons you will not see the display illuminate while the PowerTap computer is connected to the cable there will not be a Make sure you have data in see C ALL on the lower part feedback indicating that the computer woke up he PowerTap computer Try to clear all press MODE and SELECT buttons until you of the display then either go for a ride or spin the wheel long enough that you know you should have collected data about 30 seconds should do you ll know this if you have the transmission icon illuminated and the PowerTap display showed some accumulated time an
27. ooting Download Techniques After the PowerTap computer is placed in the download cradle the file that is stored in the computer has a marker put at the end so that no more data can be recorded You need to C ALL data on the PowerTap computer after downloading in order to record any new data To do a C ALL hold both but tons on the PowerTap computer until it says C ALL Close all other programs and applications to make sure they don t interfere with the download When you slide the PowerTlap computer onto the download cradle the PowerTap computer display should blank out Unable to Download If you have downloaded before determine if anything has been upgraded or changed on your PC like new software updated software moved plugs new hardware updated drivers Look for anything that may have changed the operating conditions Check the condition of the Link cable pins plug and the Link cradle contacts Is everything fully seated If you have never downloaded review the information on Serial Ports and Testing PowerTap Hardware with HyperTerminal in this guide Does it download but then not import Does the CPU blank out when put in shoe If it does not take off and reseat the CPU on the shoe Was there any problem with installing the Link software If there was do an uninstall from the CD itself and rein stall See the installation tip list If not it still may be beneficial to uninstall the software with the uni
28. ording Setting Seconds Maximum Recording Time Hrs No display on computer screen Computer is asleep press one of the Batteries need replacement replace 1 7 5 2 15 0 5 30 10 60 30 180 buttons on the computer to wake up the computer the computer batteries as shown on pages 14 15 of the User Manual Computer too cold operating temp is 25 to 110 degrees Fahrenheit Computer display is on but there is no transmission icon Hub is asleep spin the wheel momentarily to wake up the hub Batteries need replacement replace t Compuiter not seated in mount make Communication errors verify that the receivers with serial numbers less than least 7 inches from the axle For recel he hub batteries as shown on pages 14 15 of the User Manual sure computer is firmly and correctly mounted in handlebar mount receiver is positioned as shown in the installation section PowerTap 27383 the bottom of the receiver should be at ivers with serial numbers greater than 27383 the bottom of the receiver should be less than 3 inches from the axle Inspect receiver amp computer mount for damaged wire or gold colored contacts Moisture in hub remove cover to see in a dry place for 12 hours or until mois Interference with other devices make trical noise neon signs or near power from the electrical disturbance to see i bike such as lights magnets or cycle c PowerTap computer s batteries are
29. ou will need your Windows installation media Restart 1 Start HyperTerminal When the program starts you will be asked to enter a name Type in something you will remember like linktest Set the connect using pull down menu to Direct to COM 1 or your active COM port and hit OK Set the port settings to 9600 bps 8 data bits no parity 1 stop bit and no flow control Then select OK At the bottom of the window it should say connected 2 When you attach the PowerTap computer to the download link cradle its display must go blank If it does not make sure the PowerTap computer is fully seated to the cradle 33 TROUBLESHOOTING Serial ports are a very finite resource on the computer It can have many but only two can be used at one time Devices that use serial ports are Digital camera PDA Personal Digital Assistants like Palm Pilot Mouse Modem Check the computer BIOS that the serial ports are turned on and in a normal state The plug and play mode should work for most computer setups Sometimes this does not work and the default manual settings should be used The typical default is COM 3F8 INT4 and COM2 2F8 INT3 Note that Windows NT will not recognize the plug and play settings Testing Original PowerTap Hardware and Serial Ports with HyperTerminal HyperTerminal is a serial port terminal emulation software that comes with Windows It will allow you to test the basic communication between your comp
30. puter 9 The PowerTap is available only in a 130 amp 135mm range of axle lengths to accommodate different frames and uses Only use similarly sized frames and hubs Failure to adhere to these precautions may cause premature failure or incorrect operation of the unit and may void the warranty 10 Please register your PowerTap at www cycleops com SYSTEM OVERVIEW The PowerTap System The PowerTap system includes a power measuring hub which measures torque and wheel speed This information is then transmitted via digital radio frequency to a receiver mounted on the seat stay The data is wired to the PowerTap computer mounted on the handlebar The com puter receives the signal from the heart rate monitor chest strap to provide heart rate information All of this information is then processed for display on the computer Preparing for Installation The PowerTap hub comes either in a pre built wheel or alone ready to build into a wheel The power measuring hub must be built into a complete wheel prior to installation Other items nec essary for installation are a cassette spoke protector reflectors skewer rim strip tire and tube clincher rim or glue and tubular tire tubular rim Please read all instructions prior to installation Also take a moment to verify the package contents The installation procedure with a complete wheel requires only a trimmer to clip the cable ties However assembling the wheel cassette and other parts requir
31. ring the course of any repair DO NOT remove the torque tube There are no user serviceable parts inside Special tools are required for reassembly and calibration If problems are suspect ed contact Saris Cycling Group Bearings The power measuring components inside the PowerTap SL are highly complex and should only by serviced by Saris Cycling Group The bearings are sealed type 6901RS and do not require replacement Field replacement can cause permanent damage to the power measuring electron ics and result in compromised sealing and performance If bearing problems are suspected please contact Saris Cycling Group for a return authorization The PowerTap SL uses a modern 4 bearing design and does not require any tensioning adjustment 23 MAINTENANCE amp SPECIFICATIONS Freehub The grease in the freehub pawls should be replaced if it becomes contaminated with water Replace the seal at the same time contact Saris Cycling Group for replacement parts Saris Cycling Group recommends the following types of grease to ensure proper functioning Kluber Isoflex NB52 o Dupont Krytox GPL226 Warning Failure to use the proper grease on the freehub pawls could result in engagement problems Freehub replacement Use 5mm hex wrench and 17mm bike wrench and remove both end nuts from the axle Remove the axle Remove the freehub and spacers Remove all old grease from the freehub ratchet ring Install spacers per the illustration Inst
32. s Speed 2 59 mph Distance 3 95 kph Trip Time 0 00 00 999 59 Cadence 40 140 RPM Total Energy 0 99999 kJoules Odometer 0 99999 mi or km Heart Rate 0 255 BPM 26 HUB BATTERIES Normal battery life in the hub is 250 to 300 hours of actual ride time Use 357 Silver Oxide type batteries and always replace batteries in pairs Alkaline type batteries give shorter life and poorer performance Battery replacement Unscrew the plastic battery cover Use a spanner wrench or bench vise opened wide to get it started if stuck There are O ring seals that can cause the cover to resist the start of motion The threading is normal right hand Remove the inner O ring for ease of installation Remove the battery pack A small screw driver can be used back and forth between the to ends to start to lift it out Pop the battery out by bending the plastic retaining tap back and pushing the batter up from the bottom Check that the electrical connector tab from the inside of the hub is perpendicular to the bottom of the battery pocket If the tab gets bent gently press it back to perpendicular with a non sharp tool Slide the battery pack back into position along the center core As the battery is engaged a small increase of resistance to installation should be felt as the electrical connections are made Reinstall the O ring Grease the inside of the cap where the inner and outer O rings make contact Use a high quality bicycle grease gt
33. s a basic est that the serial connection is actually talking to the PowerTap Link cradle 4 Type a capital R and you should get something like RR 0000 3D 10 84 OF 01 5D This confirms that the down load link cradle cable the PowerTap CPU and your com port are functioning properly 5 If you only get 0000 and nothing else following it there is a problem with the PowerTap computer 6 If you get 0000 FF FF FF FF FF FF again there is a problem with the PowerTap computer 7 Type a capital D and you should get a long string of letters symbols and numbers This is the downloaded data from the PowerTap computer that is unreadable in HyperTerminal If you don t get this on your screen the CPU is unable to download If after reviewing this section you still have trouble please give us a call at 800 783 7257 Ext 159 34 TROUBLESHOOTING Testing PRO model with HyperTerminal The process is the same as with the original standard except the command to send is V The PRO will respond with XX XX PRO XX YY ZZ XXXxX This is the firmware version and serial number information Serial Port Trouble Shooting Check to make sure your COM port setting see Options gt Application Setup corresponds with the physical COM port on your PC Check to make sure the COM port is not configured for another application Personal Digital Assistant PDA soft ware or other device applications may be occupying the port a
34. sing either the Keypsan High speed USB to Serial Adapter or the Offspring brand adapter These brands offer the necessary support for managing COM port assignments Serial ports are a very finite resource on the computer It can have many but only two can be used at one time Devices that use serial ports are Digital camera PDA Personal Digital Assistants like Palm Pilot Mouse Modem Check the computer BIOS that the serial ports are turned on and in a normal state The plug and play mode should work for most computer setups Sometimes this does not work and the default manual settings should be used The typical default is COM 3F8 INT4 and COM2 2F8 INT3 Note that Windows NT will not recognize the plug and play settings Testing Original PowerTap Hardware and Serial Ports with HyperTerminal HyperTerminal is a serial port terminal emulation software that comes with Windows It will allow you to test the basic communication between your computer and the PowerTap link cradle and PowerTap CPU It is usually found under start gt programs gt accessories gt communication gt HyperTerminal If you can t find it search on your system start gt find gt files or folders for hyperterm exe If you still can t find it it probably was not installed on your system during setup Go to start gt settings gt control panel gt add remove programs Select the windows setup tab In Communications select HyperTerminal Y
35. site at www cycleops com PRECAUTIONS IMPORTANT 1 Before beginning any training program always check with your physician 2 Keep your eyes on the road Do not become overly engaged with the PowerTap display We recom mend familiarizing yourself with computer functions while stationary 3 The computer receiver and hub are water resistant However avoid extended submersion or high pres sure sprays directed at PowerTap components 4 Wash off dirt with a mild detergent on a soft cloth Wipe excess water off with a dry cloth Do not apply kerosene paint thinner alcohol benzine or other such solvents to any PowerTap components 5 The plastic cover on the hub should be removed only when replacing batteries or when allowing the unit to dry after submersion in water Repeated disassembly may compromise the effectiveness of the O ring seals O rings should be inspected and replaced if necessary whenever the battery cover is removed Use a light coating of grease when reinstalling the battery cap on the O rings 6 The PowerTap wheel does not include a quick release skewer CycleOps recommends using a steel skewer 7 Both sides of the PowerTap should be built using a 3x spoke lacing pattern Because of the design of the PowerTap torque is transmitted through the hub to the non drive side 8 Electromagnetic interference such as interference caused by high power lines may briefly disrupt the communication between the hub chest strap and com
36. t start up You may have to exit the occupying software to release the COM port for the Link software Make sure the Link serial cable is securely connected to both the COM port on your PC and the PowerTap comput er Notice that the PowerTap computer should be awake LCD segments illuminated before you attach the PowerTap computer to the Link serial cable Notice that the screen goes blank as soon as you make a positive connection with the cable Tips About Downloading Be sure to CLEAR ALL in the ride mode and the interval memory mode in black bodied CPU s after you download your data or future rides may be lost A clr in any yellow bodied CPU will clear current ride data as well as interval data To extend battery life after download on any black bodied CPU follow the below sequence note that any Pro or yel low bodied CPU do not require these steps 1 Remove the CPU from the Link download cradle immediately after the download is completed Leaving the CPU on the download cradle will contribute to excessive battery drain Important Just removing the CPU from the download cradle and allowing it to go into the blank LCD sleep mode does not return it to its normal power conserving mode and you must complete the next two steps 2 Place the CPU into the bike receiver shoe and wake it up by pressing either button 3 Turn the rear wheel enough to allow the CPU to receive a valid signal The rear wheel is only required to turn a few ti
37. the value reads zero To exit torque mode press select once If read zero the torque does not seem to recalibrate the unit call PowerTap customer service at 1 800 783 7257 Speed seems incorrect Wheel size incorrect refer to the chart on page 14 and enter the correct size in setup mode Transmission icon flashes rapidly Hub batteries need replacement rep lace the hub batteries as shown on pages 14 15 of the User Manual 30 TROUBLESHOOTING Link Software The following are some problems you might have when installing and setting up your Link Software This list will be evolving so please visit our web site for a current troubleshooting guide http Awww cycle ops com If your problem is not addressed here you can call Customer Service at 1 800 783 7257 General Link Trouble Shooting Raw Data Files Some of the more sneaky of you will try calculating power heart rate for just one ride to see how cardiac fatigue might be affecting your ride You ll do this by running the CSV file in Excel and calculating the factor for each record Then you ll replace the calculated column for the existing say Torque column This is very naughty You need to know that as soon as you import that data into your database it will affect your entire database history until you delete the ride If you want to try such experiments it s best to import such adulterated data into a separate rider name Database Management As long as you are keeping
38. uter and the PowerTap link cradle and PowerTap CPU It is usually found under start gt programs gt accessories gt communication gt HyperTerminal If you can t find it search on your system start gt find gt files or folders for hyperterm exe If you still can t find it it probably was not installed on your system during setup Go to start gt settings gt control panel gt add remove programs Select the windows setup tab In Communications select HyperTerminal You will need your Windows installation media Restart 1 Start HyperTerminal When the program starts you will be asked to enter a name Type in something you will remember like linktest Set the connect using pull down menu to Direct to COM 1 or your active COM port and hit OK Set the port settings to 9600 bps 8 data bits no parity 1 stop bit and no flow control Then select OK At the bottom of the window it should say connected 2 When you attach the PowerTap computer to the download link cradle its display must go blank If it does not make sure the PowerTap computer is fully seated to the cradle 3 With the PowerTap link cable connected to the serial port DB 9 9 pin connector in the back of your PC and no PowerTap computer attached characters you type on the keyboard should be echoed back appear on the screen If not make sure you are using the correct serial COM port on the PC Note You must see the echoed characters appear on the screen This i
39. will illuminate TRANS ICON WER DISPLAY SPEED INTERVAL DISPLAY DISPLAY MULTI DISPLAY MODE LEFT BOTH SELECT RIGHT Changes active Clear data Select function mode Enter setup Figure 7 PowerTap button and display summary 11 POWERTAP SL COMPUTER NAVIGATION Current Power Instantaneous power output is displayed from 0 to 1999 watts in 1 watt increments The WATTS label is visible during this mode on the power display Maximum Power _ This value is the highest record ed power output since the last time this data was cleared Both the WATTS label and the MX icon denote maximum power Average Power This function displays the calcu lated average power output measured over the course of your ride The WATTS label and the AV icon are visible when average power is shown Torque The torque function shows the torque placed on the hub in inch pounds To display Z m i ftorque hold down the seconds while on the watts dis select button for two play in trip mode The WATTS label is not vis ible with torque Press select to return to the power display Current Speed Your current speed is displayed in miles per hour or kilometers per hour up to 99 9 mi hr or km hr in 0 1 mi hr or km hr incre ments Only MI or KM is shown with current speed Maximum Speed This function displays the high est recorded value of the speed The maximum speed is s
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