CycleOps Cervo 2.4 User manual

Cervo 2.4
Cervo 2.4 Pro
OWNER’S MANUAL

Saris Cycling Group, Inc.
Model #: Cervo 2.4
IC: 3797A-BKMA
FCC ID: 06RBKM-A
2
Copyright
Copyright 2005. All rightsreserved. No part of thispublicationmay becopied,pho-
tographed,reproduced,translated,transmitted electronically or placed ondigital
media without theprior written consent of SarisCycling Group,Inc.
Trademarks
SarisCycling Group,Inc. Cervo 2.4 and theCervo 2.4 logo,areall registered trademarks
of SarisCycling Group,Inc. All other product,brand,or tradenames used inthismanu-
al may betrademarksor registered trademarksof their respectiveowners.
Modifications
SarisCycling Group,Inc reserves theright to makeimprovementsand/or updates to
theproductsdescribed hereinat any timewithout notice.
FCC Statementof Compliance:
Statementof Compliance for FCC and Industry Canada:
"This device complies with Industry Canada and Part15 of the FCC Rules. Operation is subjectto
the following two conditions: (1) This device may notcause harmful interference, and (2) this
device mustacceptany interference received, including interference thatmay cause undesired
operation."
The term "IC:" before the radio certification number only signifies thatIndustry Canada technical
specifications were met.
Changes or modifications to this device notexpressly approved by the party responsible for
compliance with FCC regulations (the manufacturer) could void the user's authority to operate
the equipment.
This equipmenthas been tested and found to comply with the limits for a Class B digital device,
pursuantto part15 of the FCC Rules. These limits are designed to provide reasonable protection
againstharmful interference in a normal installation. This equipmentgenerates, uses and can
radiate radio frequency energy and, if notinstalled and used in accordance with the instructions,
may cause harmful interference to radio communications. However, there is no guarantee that
interference will notoccur in a particular installation

About This Manual
3
Thank you for your purchase of theCycleOpsCervo 2.4. TheCervo 2.4 istheultimate
bicyclecomputer by providing real-timebiometricdata and download capabilities.
Thismanual describes theproper use and maintenance of theCycleOpsCervo 2.4.
Every person, independent of skill level,should read at least PRECAUSTION: IMPORTANT
prior to use of theCervo 2.4.
DEFINITIONS
Bold Letters=Bring special attentionto important pointsand that should beread and
understood prior to using thePowerTap.
Italicized Letters= Indicatereference to another sectionof themanual wherefurther
explanations arefound.
Thismanual describes thefunctions of theCervo 2.4. For themost current owners
manual availableplease consult CycleOpsat www.cycleops.com.

Maintenance & Specifications
Computer Batteries
Technical Specification
Rangeof Measurement
Test Mode
Glossary
4
Table of Contents
About thisManual
Precautions: Important
System Overview
TheCervo2.4 System
Preparing for Installation
Upgrading to PowerTap
System Installation
General Computer Operation
Display Levels
Buttons
Display Modes
Finding Sensors
Clearing Data
Power Conservation
Computer Navigation
Heart RateFunction
Speed Function
Multi-Function
Heart RateMonitor Mode
Interval Mode
Interval Memory Mode
Computer Setup
Computer Setup MainMenu
Computer Setup 1
Computer Setup 2
Computer Setup 3
Computer Setup 4
Computer Setup 5

Precautions: Important
• Beforebeginning any exercise program,consult your physician.
• Keep your eyes ontheroad. Do not becomeoverly engaged with theCervo2.4 dis-
play. •
• Werecommend familiarizing yourself with computer functions whilestationary,
• Wash off dirt with a cloth soaked ina weak mixtureof neutral detergent and water
and wipeexcess water off with a dry cloth Avoid spraying theunit directly with sol-
vent mixture.Donot use thinner or other solventsto cleanpartsasthey may dissolve
theplasticconsolecasings.
• Failureto adhereto these precautions may cause prematurefailureor incorrect
operationof theunit and may void thewarranty. Please register your Cervo2.4 at
www.cycleops.com.
5

1 Computer
1 Speed Sensor
1 Chest strap
12 Cable ties
1 PowerAgent Software CD
1 Download cable
1 Wheel magnet
1 Cadence Sensor (Cervo 2.4 Pro Only)
1 Instructional DVD
Qty Item
Package Contents
6
System Overview
THE CERVO 2.4 SYSTEM
TheCervo 2.4 system includes a computer and harness which measures speed,dis-
tance, cadence (Pro),and heart rate. Thisinformationistransmitted via receiver placed
onthefront fort. Thereceiver transfersthedata via a wired signal to a computer
mounted onthehandlebar or stem. Heart ratedata istransferred via a non-coded
telemetry signal from thechest strap monitor. Thedata isthen integrated to display
current,average, and maximum biometricinformation.
PREPARING FORINSTALLATION
Theonly item needed for installationina cablecutter to trim excess cabletie. See
TABLE 1 to verify packagecontents..
UPGRADING TO POWERTAP
TheCervo isthesamecomputer used with thePowerTap SL 2.4 models. Someof the
features ontheCervo will not functionwithout thePowerTap hub and receiver. The
Cervo 2.4 caneasily beupgraded to thePowerTap SL 2.4 by contacting your local
dealer or CycleOpsdirectly at 800-783-7257.

SYSTEM INSTALLATION
1. Attach Sensor to Fork
Attach sensor to front fork so themagnet passes
within3-5 inches of thesensor (FIGURE1). Place
cabletiethrough sensor to secure. Makesurethe
logo sideof thesensor faces themagnet.
3. Attach Computer Shoeto Handlebar or Stem
Thereceiver shoecanbemounted oneither thehandlebar or stem. Securethe
mounting base with cableties. Slidethecomputer shoeinthedirectionof thearrow
asdepicted ineither FIGURE 2A or 2B depending onmounting location.
SPOKE
1/2”
(12.7 MM)
MAX
FORK
SPOKE MAGNET
SPEED SENSOR
Computer Shoe
Mounting Base
Arrow
Slide shoe in direction of arrow onto the base.
Slide shoe in direction of arrow onto the base.
2A. Attach Receiver mount to Handlebar 2B.Attach Receiver mount to Stem
Computer Shoe
Mounting Base
Arrow
7

4. Install Cadence Sensor (Pro)
Only theCervo Pro isableto measurecadence
with theincluded cadence sensor. First install
thepedal cadence sensor to theleft chainstay
inline with thepedal spindle. Next attach
cadence magnet to thecrank arm. Ensurethe
center of themagnet passes theline of thesen-
sor unit. Do not center themagnet inrelationto
the
sensor (FIGURE 3). See COMPUTER SETUP 4 to
correctly configurethecomputer for thechosen
method of cadence determination.
5. Place Computer into Computer Shoe
Place thecomputer into themounting shoeonthehandlebar or
stem. Line up theslotsonthebase of thecomputer with the
bracket and slidecomputer toward therider (FIGURE 4). NOTE:
Ensurethecomputer isfully inserted onto thereceiver shoefor
proper data transmission.
6. Heart RateMonitor Strap
Positiontheheart ratemonitor strap onyour torso aspic-
tured inFIGURE 5. Thestrap should rest just beneath the
pectoralismuscles of thechest. For best resultsslightly
moisten theelectrodes wherecontact ismadewith skin.
Theheart ratestrap mustbewornto enabletheheart rate
function. NOTE: Thechest strap for theCervo2.4 uses a
coded frequency and isnot compatiblewith other
manufacturer’schest straps.
FIGURE 3
FIGURE 4
FIGURE 5
CRANK ARM
CADENCE MAGNET
1/2”
(12.7 MM)
MAX
CHAINSTAY
8

7. Verify Installation
Check to makesureall componentsareproperly secured.
Spinwheel and verify that intheupper left hand corner of
thecomputer thetransmissioniconilluminates (FIGURE 6).
Thisindicates thesensor isproperly transmitting a signal to
thecomputer. If thetransmissioniconisnot illuminated
consult TROUBLESHOOTING for further instructions.
FIGURE 6
9

General Computer Operation
DISPLAY LEVELS
Thecomputer hasthree (3) maindisplay levels:
Top •Heart Rate
Middle•Speed
Bottom •Multi-FunctionDisplay
NOTE: Thecurrent display level isindicated by two
black cursorslocated oneither sideof thecomputer
display. (FIGURE 7)
BUTTONS
Therearetwo (2) buttons onthecomputer:
1) [Mode]
2) [Select]
NOTE: [BRACKETED] wordsindicatebuttons.
Therearefive(5) types of buttonpresses:
1) Press [MODE] or [SELECT] = a singlepress and release of either [MODE] or
[SELECT].
2) Hold [MODE] or [SELECT] = a singlebuttonpress and hold of either
[MODE] or [SELECT] for 2 sec.
3) Press [MODE] and [SELECT] = simultaneously press and release of both
[MODE] and [SELECT].
144
25
58.I0
3
D
2.4
INTERVAL
DISPLAY
MODE (LEFT)
CURRENT HEART
RATE
SPEED
DISPLAY
MULTI
DISPLAY
BOTH SELECT
Changes active
mode
Clear data
Enter setup
Find
Select function
3
10

SCROLLING MENU:
Find: If [MODE] and [SELECT] arereleased
When “Find” isdisplayed thecomputer will find
Search for thePowerTap hub.
clr: If [MODE] and [SELECT] arereleased when
clr isdisplayed ALL DATA WILL BE ERASED.
SEt: If [MODE] and [SELECT] arereleased
When SEt isdisplayed onthetop level of the
Screen, a flashing “E”,d and t onthemiddle
Level and 12345 onthebottom level.
E= exit,returnto ridemode
d= restoredefault settings
T= test mode
1 2 3 4 5 = setup menus
11
4) Hold [MODE] and [SELECT] = simultaneously press and hold both [MODE]
and [SELECT] for 2 sec. NOTE: Continuing to hold longer than2 sec. will clear
all data.
5) Extended Hold [MODE] and [SELECT] = simultaneously press and hold of
both [MODE] and [SELECT] for greater than5 sec.
DISPLAY MODES
Thecomputer hastwo (2) mainmodes of operation:
1) Trip
2) Interval
Hold [MODE] to togglebetween display modes.
POWERCONSERVATION
Thecomputer haspower saving features to prolong battery life. Thecomputer powers
downthedisplay after four (4) minutes of inactivity. Press either [MODE] or [SELECT]
to activatethedisplay.

Computer Navigation
HEART RATE FUNCTION
Thetop level of themaindisplay showscurrent,and averageheart ratereadings.
1) Press [MODE] to scroll thecursor to thetop line of themaindisplay.
2) Press [SELECT] to togglethrough theheart ratefunctionoptions.
Current Heart Rate
Current heart rateisdisplayed onthetop line and shownup to 255
beatsper minute(BPM) (FIGURE 8). You must wear theheart ratechest
strap to enabletheheart ratemeasurement function. NOTE: The
Cervo2.4 uses a non-coded chest strap.
AverageHeart Rate
Thisvalueisa running averageof theheart rateinBPM. If thereisno
heart rateinformationa “0” will display (FIGURE 9).
SPEED FUNCTION
Themiddlelevel of themaindisplay showscurrent,max, and averagespeed readings.
1) Press [MODE] to scroll thecursor to themiddleline of themaindisplay.
165
25
2584
165
25
2584
3
MI
3
MI
AV
O
O
FIGURE 8
FIGURE 9
12

2) Press [SELECT] to togglethrough thespeed functionoptions.
Current Speed
Speed isdisplayed ineither miles per hour (MI) or kilometersper hour
(KM) up to 99.9 mi/hr or km/hr in0.1 mi/hr or km/hr increments. Current
speed readingsaredisplayed when only “MI” or “KM” appearsbelow the
middleline. (FIGURE 10)
Maximum Speed
Either “MI” or “KM” and “MX” displayed simultaneously indicatethehigh-
est recorded speed since thelast timedata wascleared intrip modeor
theselected interval ininterval mode. (FIGURE 11)
AverageSpeed
Either “MI” or “KM” and “AVG” displayed simultaneously indicatetheaver-
agerecorded speed since thelast timedata wascleared intrip modeor
theselected interval ininterval mode. (FIGURE 12)
MULTI-FUNCTION DISPLAY
Distance (D)
Total trip or theselected interval distance ininterval modeisdisplayed inmiles or
kilometersfrom 0.00 to 999.99 (FIGURE 13).
1) Press [MODE] to scroll thecursor to thebottom line of themaindisplay.
165
25
58.I0
3
MI
D
165
33
58.I0
7
MX MI
D
165
20
58.I0
3
AV MI
D
FIGURE 10
FIGURE 11
FIGURE 12
13

2) Press [SELECT] to togglethrough themulti-functiondisplaysuntil the
“D” iconisdisplayed.
NOTE: Distance isdisplayed inthesameunitsasspeed.
Trip Timeand Timeof Day (T)
Total trip time, interval time, and timeof day isdisplayed to 9:59:59 (FIGURE 14).
1) Press [MODE] to scroll thecursor to thebottom line of themaindis-
play.
2) Press [SELECT] to togglethrough themulti-functiondisplaysuntil the
“T”iconisdisplayed.
3) Whileintrip timehold [SLECET] to access thereal timeclock.
4) Hold [SELECT] to returnto trip or interval time.
NOTE: Auto start and stop with rotationof thewheel isthedefault set-
ting. To customizeauto start and stop see COMPUTER STETUP 4.
Cadence (C)
Only theCervo2.4 Pro isableto measurecadence with theincluded cadence sensor.
Therateof pedaling isshownfrom 20 to 240 RPM.
1) Press [MODE] to scroll thecursor to thebottom line of themaindisplay.
165
25
58.I0
3
MI
D
165
25
2.5 I.43
3
MI
T
165
25
07:16
3
MI
T
FIGURE 13
FIGURE 14
14

2) Press [SELECT] to togglethrough themulti-functiondisplays
until the“C” iconisdisplayed. (FIGURE 15)
AverageCadence (C& AVG)
Only theCervo2.4 Pro isableto measurecadence with theincluded
cadence wirepackage. Theaveragecadence displaysdata since thelast
timedata wascleared intrip modeor theselected interval ininterval
mode. Averagecadence isdisplayed inRPM.
1) Press [MODE] to scroll thecursor to thebottom line of themaindisplay.
2) Press [SELECT] to togglethrough themulti-functiondisplaysuntil
the“C” and “AVG” isdisplayed. (FIGURE 16)
Energy Expenditure(E) (POWERTAPONLY)
Thetotal work done over thecourse of thetrip or interval isshowninkilojoules. This
valueisa measureof thetotal energy expended over thecourse of your ride. Thisis
roughly equivalent to dietary calories expended.
1) Press [MODE] to scroll thecursor to thebottom line of themaindisplay.
2) Press [SELECT] to togglethrough themulti-functiondisplaysuntil the
“E” isdisplayed. (FIGURE 17)
15
365
25
89
WATTS3
MI
C
365
25
76
WATTS
3
MI
C AV
365
25
2009
WATTS
3
MI
E
FIGURE 15
FIGURE 16
FIGURE 17

Odometer (O)
Total accumulated distance traveled since thelast system reset is
displayed inmiles or kilometers. To manually input theyour odometer
reading see COMPUTER SETUP 1.
1) Press [MODE] to scroll thecursor to thebottom line of the
maindisplay.
2) Press [SELECT] to togglethrough themulti-functiondisplaysuntil
the“O” isdisplayed. (FIGURE 18)
165
25
2584
3
MI
O
FIGURE 18
16

INTERVAL MODE
Thecomputer hastwo display modes. Thetrip modeshowstotal
trip metrics, and theinterval modedisplaysinterval specificinfor-
mation. Theinterval modefunctions asa lap marker and isessen-
tially alwayson.
To beginthefirst interval,or advance to thenext interval:
Press and release [MODE] and [SELECT] simultaneously. NOTE: Do
not hold both buttons downasyou will clear all data from the
computer.
Intrip mode“INT” and thenew interval number will appear and disappear (FIGURE
19). Thecomputer canmark anunlimited number of intervalsalthough after nine (9)
themarker will beginto count back at one (1). For example, interval ten (10) isdis-
played following interval (9) asone (1).
To view interval specificdata (power,speed,and multi-functiondisplay) from any loca-
tiononthedisplay:
1) Hold [MODE] until “INT” appearsontheleft hand sideof thedisplay. The“INT” and
interval number will remainillumined asa forth line inthemaindisplay (FIGURE 19).
Thedata displayed isthat of thecurrent interval number shown.
2)To exit back out of interval modehold [MODE] until “INT” disappears.
heart rate
speed
int
multi
17

INTERVAL MEMORY MODE
To access stored interval data for theprevious9 intervalsonly:
1) Enter theinterval modehold [MODE] until “INT” appearsontheleft hand sideof the
display.
2) Press [MODE] to scroll until the“INT” flashes. NOTE: INT now constitutes a fourth
level of display.
3) Hold [SELECT] and thememory icon(”M”) appearsnext to theinterval number
(FIGURE 20).
4) With “INT” flashing,press [SELECT] to advance to theinterval you wish to view.
5) Press [MODE] scroll thecursor to theline of informationyou wish to view. NOTE:
Recovery periodsaswell aswork periodsaredisplayed inmemory mode.
To exit back out of theinterval memory modehold [SELECT]
until thememory icondisappears. Thecomputer isnow dis-
played intheinterval mode. To exit from theinterval mode
from any locationonthedisplay hold [MODE] until “INT” dis-
appears.
heart rate
speed
int m
multi
18

Computer Setup
Thesetup featurehasfour (4) mainmodes. You do not haveto completeall four to
changesettings. Please reference each modeto determine thecorrect locationto
begin. NOTE: Thecomputer illustrations for each modedisplay thefactory default set-
tings.
COMPUTERSETUPMAIN MENU
1) Press either [MODE] or [SELECT] to activatethecomputer.
NOTE: Theversionof firmwareisdisplayed uponstartup. The
most updated firmwareversionisavailableat www.cycleops.com.
(FIGURE 21)
2) Extended hold of [MODE] and [SELECT] simultaneously enters
computer setup functionasindicated by a flashing “E”. NOTE:
Continueto hold through “clear all” screen. Releasing hold early
will clear all current data.
3) Thesetup modedisplaysthree (3) lettersand numbers1-4.
Each letter representsa setup menu. A flashing alphanumeric
character indicated current selection. (FIGURE 22)
E = exit,returnto ridemode
d = restoredefault settings
T = test mode
1 2 3 4 5= setup menus
4) Press [SELECT] to scroll to thedesired setup mode.
5) Press [MODE] to beginsetup.
PR
2.00
Set
E
1234
t
d
Setup Menu 19

Std
t
1
Std
t
p
Std
p
t
12:0
20
COMPUTERSETUP1
Thissetup menu includes: timeof day,date, storagerate, wheel circumference, units
of measure, odometer. NOTE: You areunableto moveback to a previously viewed set-
tings. You must restart setup 1 to makecorrections.
1) From thecomputer setup mainmenu press [SELECT] and scroll
until thenumber one (1) isflashing. Press [MODE] to enter setup
mode.
2) Press [SELECT] to togglebetween a 12 or 24 hour clock. Press
[MODE] to save.
3) Press [SELECT] to togglebetween AM (A) or PM (P). Press
[MODE] to save.
4) Press [SELECT] to togglethrough digit values to set hoursin
timeof day. Press [MODE] to save.