Polar Electro S725 User Manual
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Polar Electro S725 User Manual

Cycling heart rate monitor
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With the following accessories you get the most out of your S725
Polar Cadence Sensor:
A wireless sensor that measures the speed at which
you turn the pedals of your bicycle.
IR Interface:
The Polar IR interface is designed for communication
between Polar heart rate monitors and Polar software
products. For infrared connection to your PC you need
a Polar IR interface if you do not have an IrDA port in
your PC.
Power Output Sensor:
The Polar Power Output system measures pedaling
power when cycling. It also measures left/right balance
(LRB describes the share of power output of left and
right as a percentage), pedaling Index (describes how
evenly power output was produced during a cycle
round), speed, cadence and distance. If you use the
Power Sensor, you do not need to mount any other
accessories on your bicycle.
Polar S725 offers you the possibility for
infrared communication with Polar training
analysis software. See the instructions from
the CD-ROM set.
S725
CYCLING HEART RATE MONITOR
E N G
U S E R M A N U A L
S725
CYCLING HEART RATE MONITOR
Display symbols
Indicates an ongoing heart rate measurement and flashes to the beat of your heart.
Indicates there has not been heart rate reception for at least 5 seconds.
- - Indicates there is no heart rate reception. Bring the wrist unit up to your chest
near the transmitter's Polar logo.
The wrist unit starts looking for the heart rate signal again.
Options mode: indicates that you are setting the bike functions.
Measuring/Recording mode: indicates that bike 1 or 2 is on.
File mode: indicates cycling information.
In the Time of day display the alarm is on.
Measuring mode: beeps if you are exercising outside your target heart rate zone.
Fitness Test mode: sounds an alarm at the end of the fitness test.
Indicates the Interval Trainer.
Indicates continuous interval (Cont).
Recording mode: indicates the heart rate above the target zone.
Recording mode: indicates the heart rate below the target zone.
The graphic bar consists of five blocks. A flashing block indicates in which level you are
in the Options settings or File recalling loops. Continuously running bars indicate that
the exercise is recorded.
Indicates low battery.
See the glossary for display text interpretation.

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  • Page 1 With the following accessories you get the most out of your S725 Polar Cadence Sensor: A wireless sensor that measures the speed at which you turn the pedals of your bicycle. IR Interface: The Polar IR interface is designed for communication between Polar heart rate monitors and Polar software products.
  • Page 2 Dear Customer Road Map Time of File Options Fit. Test Connect Congratulations on purchasing a Polar Cycling Heart Rate Monitor! We are Scroll Up / Down Measuring Recorded OwnIndex/ Infrared proud to assist you in achieving personal fitness and performance goals.
  • Page 3 For more information about the different functions, see the "All that you can do with your Heart Rate Monitor" section. Please read this manual carefully to familiarize yourself with the Polar cycling heart rate monitor. Here is where you can find the information you need to use and maintain your equipment.

  • Page 4: Table Of Contents

    Buttons and their functions ... 6 Easy start ... 8 How to prepare the wrist unit ... 8 Installing the Polar Bike Mount ... 9 Installing the Polar Speed Sensor ... 9 How to put the transmitter on ... 11 How to start measuring your heart rate ...
  • Page 5 Swap time 1 or time 2 ... 46 Shortcut to watch settings ... 46 Swap measuring units ... 46 Swap date, user ID number, user name and logo ... 46 C. Exercise ... 47 Measuring mode ... 47 Recording mode ... 50 Heart rate zone alarm on/off ...
  • Page 6 Resetting cumulative counts to zero ... 78 Returning to your previous maximum value ... 79 E. Polar Fitness Test ... 80 OwnIndex ... 80 Predicted maximum heart rate ... 82 Fitness test settings ... 83 Carrying out the test ... 83 Update OwnIndex and HR Fitness classes ...

  • Page 7: Getting Going

    A. GETTING GOING Heart rate monitor parts and their functions The electrode areas of the strap detect your heart rate. The connector transmits your heart rate signal to the wrist unit. The wrist unit displays your heart rate and cycling data during exercise.

  • Page 8: Buttons And Their Functions

    Buttons and their functions Signal/ Light Turns the beep on or off. Turns the backlight on. Stop Return - Stops measuring the heart rate. Exits the displayed mode and returns to the previous mode level. Returns to the Time of day display from any mode by pressing and holding the stop button.
  • Page 9 Useful tips • Briefly pressing a button (approximately 1 second) will do different things than pressing and holding the button for a longer period of time (approximately 2 to 5 seconds). If your press the button for a longer period of time, you can use shortcuts. •...

  • Page 10: Easy Start

    Heart Rate Monitor. You can either manually enter the settings by pressing the wrist unit buttons or you can define your settings with Polar Precision Performance software, after which the data should be transferred from your PC to the wrist unit.

  • Page 11: Installing The Polar Bike Mount

    50 cm / 1´8´´ If you are using Polar S725 with Polar Power Output Sensor, please see the bike mount and sensor installation instructions in the Power Output Sensor user manual. If you use the Power Sensor, you do not need to mount any other sensors on your bicycle.
  • Page 12 4. There are two spoke magnet options. You only need to install one of them. Check which of the magnets fits the spoke of your bike best. One (A) is installed by rotating it around the spoke before putting the metal cover on, another (B) by tightening the screw.

  • Page 13: How To Put The Transmitter On

    4. Check that the wet electrode areas are firmly against your skin and that the Polar logo of the connector is in a central, upright position. How to start measuring your heart rate 1.

  • Page 14: How To Stop Measuring Your Heart Rate

    mobile phones may cause interference when starting the heart rate measurement. 4. Press the OK button to start measuring your heart rate. A heart symbol will start flashing and your heart rate (beats per minute) will appear in a maximum of 15 seconds.

  • Page 15: All That You Can Do With Your Heart Rate Monitor

    1. TIME OF DAY In this mode you can use your heart rate monitor as a watch since it can display the time, date, weekday, alarm and two different time zones. In addition, you can upload a personal logo, user number or user name from a PC.
  • Page 16 3. a cool-down period, using a countdown timer after intervals Use of this Interval Training function leaves you free to concentrate on your exercise during the interval training. Your heart rate monitor takes care of observing timers and heart rate limits, all you have to do is exercise.
  • Page 17 PC to your wrist unit. 6. TEST (SEE SECTION E. POLAR FITNESS TEST) In this mode you can carry out the Polar Fitness Test. This test estimates your maximal aerobic power (VO OwnIndex value. This test also provides a predicted maximum heart rate value (HR -p).
  • Page 18 In Connection mode you can download recorded training information from your wrist unit's memory to your PC for more elaborated analysis. You can also upload your wrist unit settings from your PC. To perform the above-mentioned operations, you need the Polar Precision Performance software. A 16...

  • Page 19: How To Enter Settings

    PC. See the separate CD-ROM set for infrared communication possibilities. After preparing your settings you can upload options lock from the Polar Precision Performance software to ensure that your settings will not change. You must deactivate the options lock from the "user features" of the software.

  • Page 20: User Information Settings

    User information settings Options User Set kg/lbs feet inch In the User Set loop you can move forward only by pressing OK. The digits run faster if you press and hold the up or down button as you adjust the value. Release the button when approaching the desired value. Measuring units depend on your choice in Options/ Monitor Set/ Unit 1 or Unit 2.
  • Page 21 10. Scroll up or down to select your gender. Press OK. Activity level (Activity) 11. Scroll up or down to select your activity level for Polar Fitness Test. Press OK. Assess your long-term physical activity level. Do not change your activity level description if your regular exercise habits have changed during the last six months.
  • Page 22 13. Press OK. If you do not know this value, update it in the Fitness Test mode after having carried out the Polar Fitness Test. Maximal oxygen uptake value (VO 14. The wrist unit suggests value 35 for females and value 45 for males as a default setting when you set this value for the first time.

  • Page 23: Exercise Settings

    Exercise settings for Recording mode When you start setting your exercise preferences your first choice is to select whether you want to set your personal exercise set or to exercise with BasicUse option. If you select to start setting the exercise sets, your second choice is whether you want to select BasicSet or an Interval Training Set.

  • Page 24: Setting Exercise Sets

    Setting exercise sets Preset exercise sets ready for five exercise sets; when you start exercising, just select one of the sets. Interval Training Set If you choose interval on, you can set 3 different exercise phases for each exercise set in following order: Warm-up phase •...
  • Page 25 1. In the Time of day display scroll up or down until OPTIONS is displayed. 2. Press OK to enter the Options mode. EXERCISE SET is displayed. 3. Press OK to start the exercise settings. BasicUse E0 or exercise set E1 - E5 is displayed.

  • Page 26: Setting Timers

    Setting timers If you start from the Time of day display, repeat steps 1-5. 6. Scroll up or down until desired timer is displayed. Press OK to start setting the timer. 7. Scroll up or down to turn the timer on or off. Press OK. Timer OFF: skip steps 8-9.

  • Page 27: Heart Rate Limits On/Off

    Heart rate limits 1 • Time within, above and below limits 1, 2 and 3 is recorded only when those particular limits are activated. • Time within, above and below summary limits is recorded during the entire exercise, regardless of which limits are in use. Turning heart rate limits on/off If you start from the Time of day display, repeat steps 1-5.

  • Page 28: Setting Recovery Calculation

    Setting recovery calculation You can select 2 optional types of recoveries in a BasicSet: A. Time-based recovery B. Heart-rate-based recovery Ends your recovery as you reach the preset If you start from the Time of day display, repeat steps 1-5. 6.

  • Page 29: Setting Interval Type

    Setting interval type You can select four optional types of intervals: A. Time-based interval B. Heart-rate-based interval C. Distance-based interval D. Manual interval If you start from the Time of day display, repeat steps 1-5. 6. Scroll up or down until Interval TIMER/ Hr/ DIST/ MANUAL is displayed.

  • Page 30: Setting Number Of Intervals And Recoveries

    A. Time-based interval 8. Scroll up or down to adjust minutes. Press OK. 9. Scroll up or down to adjust seconds. Press OK. Interval TIMER appears. B. Heart-rate-based interval 8. Scroll up or down to adjust the heart rate that will end your interval. Press OK.

  • Page 31: Setting Interval Recovery

    Setting interval recovery calculation You can select 3 optional types of recoveries: A. Time-based recovery B. Heart-rate-based recovery Ends your recovery as you reach the preset C. Distance-based recovery If you start from the Time of day display, repeat steps 1-5. 6.

  • Page 32: Naming Exercise Sets

    C. Rec. Dist is displayed. 10. Scroll up or down to adjust kilometers. Press OK. 11. Scroll up or down to adjust hundreds of meters. Press OK. Recovery DIST appears. To continue your settings, press the stop button or to return to the Time of day display, press and hold the stop button.

  • Page 33: Setting Recording Rate

    Setting recording rate 1. In the Time of day display scroll up or down until OPTIONS is displayed. 2. Press OK to enter the Options mode. EXERCISE SET is displayed. 3. Scroll up or down until MEMORY SET is displayed. 4.
  • Page 34 The following table shows the maximum exercise times for each recording rate. Altitude Speed Cadence The use of exercise sets and lap recording reduces the maximum exercise times. To continue your settings, press the stop button or to return to the Time of day display, press and hold the stop button.

  • Page 35: Turning Functions On/Off

    For getting the most accurate OwnCal results, update the VO and the HR setting with clinically measured values (if available). If you do not know your clinically measured values perform Polar Fitness Test and update the OwnIndex and HR Altitude...

  • Page 36: Fitness Test On/Off

    6. Press OK to start setting the HR 7. Scroll up or down to set the HR -p can be turned on only if Polar Fitness Test is on. Altitude and thermometer on/off If you start from the Time of day display, repeat steps 1-4 5.
  • Page 37 To use the thermometer the altitude must be turned on. To continue setting your settings, press the stop button or to return to the Time of day display, press and hold the stop button. B 35...

  • Page 38: Bicycle Feature Settings

    Bicycle feature settings Options Bike Set Bike 1/ Bike 2/ Bike OFF Wheel Size Cadence On/OFF 1. In the Time of day display scroll up or down until OPTIONS is displayed. 2. Press OK to enter the Options mode. EXERCISE SET is displayed. 3.

  • Page 39: Wheel Size

    Adjusting the wheel size (Wheel) If you start from the Time of day display, repeat steps 1-5. 6. Start with the display showing Wheel. 7. Press OK to start setting the wheel size. 8. Scroll up or down to adjust the wheel size. Press OK. You have the following alternatives to find out the wheel size of your bike: METHOD 1.

  • Page 40: Cadence On/Off

    7. Press OK to start setting the Cadence. On/OFF starts to flash. 8. Scroll up or down to set the Cadence on or off. Press OK. *Optional Polar Cadence Sensor or Polar Power Output Sensor required. B 38 - 4 mm...

  • Page 41: Power On/Off

    11. S. length is displayed. Scroll up or down to adjust the span length. Press OK. If you are using the wireless Polar Speed Sensor, set the Power off. You can find more information about the Polar Cadence and Polar Power Output Sensor on the back cover of this manual.

  • Page 42: Naming Bike 1 Or 2

    Naming bike 1 and bike 2 You can name the bikes with four letters, numbers or marks. The number in the right corner indicates, which bike settings are in use. (b0=Bike OFF, b1=Bike 1, b2=Bike 2) 1. In the Time of day display scroll up or down until OPTIONS is displayed. 2.

  • Page 43: Monitor Settings

    Monitor settings 1. In the Time of day display scroll up or down until OPTIONS is displayed. 2. Press OK to enter the Options mode. EXERCISE SET is displayed. 3. Scroll up or down until MONITOR SET is displayed. 4. Press OK to start the monitor settings. Sound is displayed. Turning activity/button sound on/off If you start from the Time of day display, repeat steps 1-4.

  • Page 44: Help On/Off

    The units settings affect the following features: User information Date of birth Speed Distance Altitude Meters ascended Temperature Wheel size Power Chain weight Chain length Span length Turning Help on/off If you start from the Time of day display, repeat steps 1-4. 5.

  • Page 45: Watch Settings

    Watch settings 1. In the Time of day display scroll up or down until OPTIONS is displayed. 2. Press OK to enter the Options mode. EXERCISE SET is displayed. 3. Scroll up or down until WATCH SET is displayed. 4. Press OK to start the watch settings. ALARM is displayed. Setting alarm If you start from the Time of day display, repeat steps 1-4.

  • Page 46: Setting Time Of Day

    Setting time of day If you start from the Time of day display, repeat steps 1-4. 5. Scroll up or down until TIME1/ TIME2 is displayed. 6. Press OK to start setting the time of day. 7. Time is flashing. Scroll up or down to select time 1 or time 2. Press OK. 8.

  • Page 47: Reminders On/Off

    9. Scroll up or down to set the reminder on or off. Press OK. You can upload 7 reminders, each including time and name, to your wrist unit from Polar Precision Performance software. The reminder sounds an alarm only when time of day is displayed. When the reminder alarm comes on, it will sound for 15 seconds or you can turn it off by pressing any of the buttons except the signal/light button.

  • Page 48: Setting Tips

    Swap date, user ID number, user name and logo You are able to set a user ID number, user name and logo by Polar Precision Performance software. These settings are shown on the upper row of the Time of day display. You can swap between the user ID, user name, logo and date by pressing and holding the up button.

  • Page 49: Exercise

    C. EXERCISE You can use two modes in your exercise: Time of Day Measuring or Recording mode. In the Measuring mode you can see your heart rate but your Measuring Mode exercise is not recorded. In the Recording mode your exercise is recorded and stopwatch and Recording Mode other calculations are started.
  • Page 50 3. Start from the Time of day display by pressing the OK to start measuring your heart rate. A heart symbol will start flashing and your heart rate in beats per minute will appear in max. 15 seconds. The wrist unit returns automatically to the Time of day display within 5 minutes if there is no heart rate reception.
  • Page 51 The following displays start to alternate, if you have bike 1 or 2 and altitude settings on, as you enter the Measuring mode. Exercise name Memory left Time of day Current heart rate BasicUse (E0)/ Exercise set in use (E1-E5) If you are not cycling, turn the cycling settings off by pressing and holding the down button.

  • Page 52: Recording Mode

    If there is - - / 00 reading on the display, there is no heart rate reception. Bring the wrist unit up to your chest near the transmitter’s Polar logo. The wrist unit starts looking for the heart rate signal again.

  • Page 53: Heart Rate Zone Alarm On/Off

    Turning the heart rate zone alarm on/off Note that you can not use the alarm when Bicycle functions Note that trip distance is reset by pressing and holding signal/light button. Therefore Trip should not be displayed in the upper row when turning zone alarm on/off.

  • Page 54: Swapping The Heart Rate Limits

    • if you start or stop the exercise session • if you store lap information • if you bring the wrist unit near the Polar transmitter (Heart touch) You can turn this function off by pressing the signal/light button again. It is automatically turned off when you return to the Time of the day display.

  • Page 55: Storing Lap And Split Time

    Storing lap and split time Press OK to store lap and split time. First Lap time Average heart rate of the lap Number of the lap The wrist unit automatically stores a lap time when you stop recording an exercise. You can store 99 laps if you have not used the interval function.

  • Page 56: Swapping The Displayed Exercise Information

    1. Time of day Stopwatch Current heart rate Number of the 3. Speed 5. Power* Remember to attach your wrist unit to the Polar Bike mount in order to record the correct temperature. 2. Time of day Lap time 4. Altitude Temperature 6.
  • Page 57 You cannot select the same displayed function to the upper and middle row i. e. the option on the middle row is no longer available for the upper row. Phase Name Countdown timer *Optional Polar Cadence Sensor or Polar Power Output Sensor required. C 55...

  • Page 58: Resetting The Stopwatch To Zero

    3. Select the lower heart rate information row Press and hold the down button to select from the following: Current heart rate, average heart rate (avg) or the reading in percentages of your maximum heart rate (% max) if you have set your user information.

  • Page 59: Exercising With Interval Training Set

    Exercising with Interval Training Set (Int On, E1-E5) In this mode you can also use the functions described in “Recording mode” section. The Interval Trainer automatically guides you through your exercise. In order to hear the activity sounds when the phase starts and stops make sure the activity sound is on.

  • Page 60: Warm-Up Phase

    Warm-up phase 1. First Heart rate limits 1 (if set on). 2. Then Countdown timer 1. Heart rate information. Countdown timer starts running if you have set the timer 1 on. If you have set the timer off, press and hold OK and continue from the interval phase.
  • Page 61 Interval session 1. First Preset heart rate limits 2 (if set on). 2. Then One of the following is displayed depending on your settings: A. manual, B. time-based, C. heart rate-based or D. distance-based interval. A. Manual interval. Number of set intervals. Current interval number.
  • Page 62 3. At the end of Interval Interval duration. Average heart rate of the interval. When your interval ends the wrist unit automatically continues with following preset function: recovery calculation or cool-down phase. Recovery calculation One of the following is displayed depending on your settings: A.

  • Page 63: Cool-Down Phase

    At the end of recovery A. and B. Recovery duration. Drop in your heart rate. Cool-down phase 1. First Preset heart rate limits 3 (if set on). 2. Then Countdown timer 3. Heart rate information. Countdown timer starts running if you have set the timer 3 on. If you have set the timer off, press and hold OK to end a phase.

  • Page 64: Interrupting An Interval Training Exercise

    Interrupting an interval training exercise 1. Press the stop button to pause the exercise. 2. Press and hold the stop button to return to the Time of day display. Press the stop button. BasicUse appears. You can continue measuring your heart rate in this mode (Measuring mode).

  • Page 65: Starting The Recovery Calculation

    Starting the recovery calculation To start the recovery calculation, press and hold the OK button. See “Exercising with Interval Trainer”/ “Recovery calculation” for the displayed information during the recovery calculation. After the recovery calculation is done the exercise is paused. You can continue the exercise by pressing the OK button after the recovery calculation.

  • Page 66: Swapping The Bike Setting

    Swapping the bike setting (b0, b1 or b2) Tips during the exercise Start from the Measuring mode. Press and hold the down button until Bike 1 or 2 or Bike OFF is displayed. You can now start exercising with the chosen settings.

  • Page 67: Interrupting An Interval Or Recovery Calculation

    The heart touch function is activated as you bring the wrist unit near the transmitter’s Polar logo. You have three alternatives for the heart touch function. To select heart touch display, use your Polar Precision Performance software: • Checking the current heart rate limits •...

  • Page 68: How To Recall Training Information

    The bigger the file number the more recent it is. There is a two-way communication between the wrist unit and a PC. Polar Precision Performance Software offers an easy way to analyze training data, keep training diary, and plan future training. See the CD-ROM for further information.
  • Page 69 If a function was not activated in the settings mode, that information will not be displayed in the recorded file. Exercise file 1. In the Time of day display scroll up or down until FILE is displayed. 2. Press OK to enter the File mode. The main information of your file is displayed.

  • Page 70: Exercise Time

    Average and maximum speed of the exercise alternate. Cadence information* (Cad. Avg/ Max) Average and maximum cadence of the exercise alternate. Altitude (Alt. Avg/ Max/ Min) Average, maximum and minimum altitude of the exercise alternate. D 68 *Optional Polar Cadence Sensor or Polar Power Output Sensor required.

  • Page 71: Temperature

    Temperature ( C or F Avg/ Max/ Min) Average, maximum and minimum temperature of the exercise alternate. Ascended meters/feet (Ascent) You can see the ascended meters/ feet of the exercise. Power* (Pwr Avg/ Max) Average and maximum output power of the exercise alternate. Pedaling index* (PI Avg/Max) Average and maximum pedaling index of the exercise alternate.

  • Page 72: Exercise Time Within, Above And Below The Heart Rate Zones

    Exercise time within, above and below the heart rate zones Indicates the exercise time, which you have spent within (InZone), above and below each heart rate limits. Time within, above and below limits 1,2 and 3 is recorded only when those particular limits are activated. Time within, above and below summary limits is recorded during the entire exercise, regardless of which limits are in use.

  • Page 73: Odometer

    Odometer Measures cumulative total distance of several exercise sessions starting from the previous resetting of the value in records file. Interval Training information (EXE. SET) Start with the display showing EXE. SET. 1. Press OK to start recalling the interval training information.
  • Page 74 Cool-down phase Duration of the cool-down. The heart rate at the end of the cool-down, average and maximum heart rates of the cool-down phase. 3. Press the stop button to return to the previous file level and skip steps 4-6. Or, continue recalling more detailed information of the interval phase.

  • Page 75: Lap Information

    Recovery information Time-based recovery. Recovery duration. Drop in your heart rate. Heart-rate-based recovery. Time it took reach the preset heart rate reading. Drop in your heart rate. Distance-based recovery. Recovery distance. Drop in your heart rate. 6. To continue recalling, e. g. , lap information press the stop button twice. Scroll up or down until LAPS is displayed.
  • Page 76 • altitude at the end of the lap (Altitude), • ascended meters at the end of the lap (Ascent), • power* at the end of the lap (Power), *Optional Polar Cadence Sensor or Polar Power Output Sensor required. D 74...

  • Page 77: Recorded Samples

    • left right pedaling balance at the end of the lap* (LRB), • pedaling index* (PI %), • ridden distance at the end of the lap (Distance), • temperature at the end of the lap ( C/ F). Press the stop button to exit the LAPS display. Press and hold stop to return to the Time of day display.

  • Page 78: Deleting A File

    Deleting a file 1. In the Time of day display scroll up or down until FILE is displayed. 2. Press OK to enter the File mode. 3. Scroll up or down until desired exercise file is displayed. Press and hold the signal/light button.

  • Page 79: Records File

    You can now return to the Time of day display by pressing and holding the stop button, continue resetting your cumulative counts or return to your previous maximum value. *Optional Polar Cadence Sensor or Polar Power Output Sensor required. D 77...

  • Page 80: Resetting Cumulative Counts To Zero

    Resetting your cumulative counts to zero Once your have reset the cumulative count you cannot retrieve it. Start with the display showing Tot. KCal, Tot. Time, Rid. Time or Odometer in the records file. 1. Press OK to start resetting the desired total count. Reset appears and the value starts to flash.

  • Page 81: Returning To Your Previous Maximum Value

    4. You can still cancel the reset by pressing the stop button. If you are sure you want to return to the previous value, press OK. 5. Press and hold the stop button to return to the Time of day display. *Optional Polar Cadence Sensor or Polar Power Output Sensor required. D 79...

  • Page 82: Polar Fitness Test

    E. POLAR FITNESS TEST The Polar Fitness Test is an easy, safe and quick way to estimate individual maximal aerobic power and to get predicted maximum heart rate value. The Polar Fitness Test is targeted to healthy adults. OwnIndex OwnIndex is a value which is comparable to maximal oxygen uptake (VO a commonly used descriptor of aerobic fitness.
  • Page 83 If you want to improve your cardiovascular fitness, it takes a minimum of 6 weeks on an average to see a noticeable change in OwnIndex. Less fit individuals see progress even more rapidly and for more fit individuals more time is needed. Cardiovascular fitness is best improved by exercise types which employ large muscle groups.

  • Page 84: Predicted Maximum Heart Rate

    Predicted maximum heart rate (HR The HR -p definition is carried out simultaneously with the Polar Fitness Test. The HR -p score predicts your individual maximum heart rate value more accurately than the age-based formula (220 - age). The age-based method provides a rough estimation and is thus not very accurate, especially for people who have been fit for many years or for older people.

  • Page 85: Fitness Test Settings

    Fitness test settings To be able to carry out the Polar Fitness Test you need to do the following settings in the Options mode: • Set your personal user information and long-term physical activity level. • Set the Polar Fitness Test on.
  • Page 86 Time of Day File 1. In the Time of day display scroll up or down until FIT. TEST is displayed. If you cannot find Fitness Test mode check that you have turned the function on in the Options mode. 2. Press OK to enter the Fitness Test mode. Your latest OwnIndex and the testing date are displayed.

  • Page 87: Update Ownindex And Hr

    Interrupt the test • You can stop the test any time during the test by pressing the stop button. Failed TEST is displayed for a few seconds. The latest OwnIndex and HR If the wrist unit does not succeed in receiving your heart rate at the beginning or during the test, the test will fail.

  • Page 88: Fitness Classes

    Fitness classes The Polar Fitness Test result, your OwnIndex, is most meaningful when comparing your individual values and changes in them. OwnIndex can also be interpreted according to your gender and age. Locate your OwnIndex on the table to find out your current cardiovascular fitness classification, compared with those who are of the same age and gender.
  • Page 89 For various fitness classes we recommend the following: 1-3 Increase exercise for health benefits and fitness improvement. Top athletes typically score OwnIndex values above 70 (men) and 60 (women). As high values as 95 can be reached by Olympic level athletes. OwnIndex is highest in sports that involve large muscle groups such as cross-country skiing and cycling.

  • Page 90: Care And Maintenance

    Taking care of your Polar heart rate monitor • Store your Polar heart rate monitor and transmitter in a cool and dry place. Do not store it in any kind of non-breathing material, such as a plastic bag or a sports bag if it is wet.
  • Page 91 (2h/ day, 7 days/ week). If your transmitter stops working, it might be due to the battery running out. We recommend that you have the battery replaced by an authorized Polar Service Center only. You can, however, change the battery yourself by following the instructions below.
  • Page 92 You can get the sealing ring/battery kits from well-equipped Polar retailers and authorized Polar Services. In the USA and Canada: Additional sealing rings are available from an authorized Polar Service Center only.
  • Page 93 Polar wrist unit yourself. To ensure the water resistance properties and the use of qualified components, the wrist unit battery should be replaced only by an authorized Polar Service Center. At the same time a full periodic check of the Polar heart rate monitor will be done.
  • Page 94 10. Do not throw the replaced battery away with normal waste; take it to a place where problem waste is handled. Service Should your Polar heart rate monitor need service, see Customer Care Charter to contact an authorized Polar Service Center. Water resistance cannot be guaranteed after unauthorized service.

  • Page 95: Precautions

    G. PRECAUTIONS Using the Polar heart rate monitor in a water environment Your Polar heart rate monitor is water resistant to 30 meters/ 100 feet. To maintain the water resistance, do not operate the buttons of the wrist unit under water.

  • Page 96: Polar Heart Rate Monitor And Interference

    3. Put the transmitter back on the chest and keep the wrist unit in this interference-free area as far as it is possible. 4. If the Polar heart rate monitor still does not work with the exercise equipment, this piece of equipment may be electrically too noisy for wireless heart rate measurement.

  • Page 97: Minimising Possible Risks In Exercising With A Heart Rate Monitor

    Minimising possible risks in exercising with a heart rate monitor Exercise may include some risk, especially for those who have been sedentary. Before starting a regular exercise program you are recommended to answer to the following questions for health status checking. If the answer is yes to any of the questions, we recommend to consult a doctor before starting an exercise program.
  • Page 98 Notice to persons with pacemakers, defibrillator or other implanted electronic device. Persons who have a pacemaker use the Polar heart rate monitor at their own risk. Before starting use, we always recommend an exercise test under doctor’s supervision. The test is to ensure the safety and reliability of the simultaneous use of the pacemaker and the heart rate monitor.

  • Page 99: Frequently Asked Questions

    H. FREQUENTLY ASKED QUESTIONS What should I do if..I don’t know where I am in the Options or File cycle? Press and hold the stop button until time of day is displayed..I cannot find the previous exercise’s file? You may have used the Measuring mode during your exercise, which means that your exercise was not stored.
  • Page 100 2. Put the transmitter back and bring the wrist unit up to your chest near the transmitter’s Polar logo. The wrist unit starts looking for a heart rate signal again. Continue your training session normally..heart rate reading becomes erratic or extremely high?
  • Page 101 We recommend having all service done by an authorized Polar Service Center. The guarentee does not cover damage or consequential damage caused by service not authorized by Polar Electro. Polar Service will test your wrist unit for water resistance after battery replacement and make a full periodic check of the complete Polar Heart rate monitor.
  • Page 102 4. If the 00 reading is constant, you may have exceeded 2500 riding hours and the battery of the speed sensor needs to be replaced. 5. If you are using the wireless Polar Speed Sensor, check that Power is turned off in the Options mode.

  • Page 103: Technical Specifications

    I. TECHNICAL SPECIFICATIONS Polar S725 is designed to indicate the level of physiological strain and intensity in sports and exercise. It also measures altitude and temperature in cycling. No other use is intended or implied. The altitude and temperature functions are not designed to be exclusive measuring equipment in aviation, climbing sports, water sports or their equivalent.
  • Page 104 Accuracy of heart rate measurement: 1% or 1 bpm, whichever larger, definition applies to steady state conditions. Altitude and temperature measurement: The Polar S725 calculates altitude by using the standard average altitude in certain air pressures according to the ISO 2533. The air pressure is measured and the temperature is compensated every second.
  • Page 105 Default Settings Time of day Alarm Date of Birth (adjustable range for year is 1921 – 2020) Weight Height Activity 2max male female Bike 1/2 Wheel size for bike 1 Wheel size for bike 2 Cadence Power Activity sound Units Help OwnCal Fitness test...

  • Page 106: Limited Polar International Guarantee

    Polar Electro Oy. The names and logos marked with a ™ symbol in this user's manual or in the package of this product are trademarks of Polar Electro Oy. The names and logos marked with a ® symbol in this user's manual or in the package of this product are registered trademarks of Polar Electro Oy, except that Windows is a registered trademark of Microsoft Corporation.

  • Page 107: Disclaimer

    • Polar Electro Inc. / Polar Electro Oy makes no representations or warranties with respect to this manual or with respect to the products described herein. Polar Electro Inc. / Polar Electro Oy shall not be liable for any damages, losses, costs or expenses, direct, indirect or incidental, consequential or special, arising out of, or related to the use of this material or the products described herein.

  • Page 108: Polar Glossary

    L. POLAR GLOSSARY Activity level: Your long-term physical activity level you need to assess in order to do the Polar Fitness Test. Altitude and temperature: The altitude and temperature are measured by using an atmospheric pressure sensor. Air pressure changes...

  • Page 109: Display Texts

    Cad*: Indicates pedaling speed measured in rounds per minute (RPM). Calibrate: You can return to the previous manually set reference point altitude. *Optional Polar Cadence Sensor or Polar Power Output Sensor required. CONNECT: Infrared communication mode. Cont: Up to 30 intervals succeed one another unless the Interval phase is manually stopped.
  • Page 110 -p: Predicted maximum heart rate value. Interval, Int: Options mode: indicates Interval Training Set Recording mode: Indicates interval exercise session including warm-up, interval and cool-down phases. InZone/ Above/ Below: indicate the time spent within, above and below the target zone. KCal: Indicates the energy expenditure of your exercise.
  • Page 111 2max into the wrist unit. Energy expenditure measurement is most accurate in continuous activities such as cycling and running. OwnINDEX: Result of Polar Fitness Test and comparable score with maximal oxygen uptake (VO ml/kg/min. *Optional Polar Cadence Sensor or Polar Power Output Sensor required.
  • Page 112 will see the drop in your heart rate and the recovery duration. Spd: Indicates velocity. Split Time: The elapsed time from the beginning of the exercise until storing the split time. Sw: Indicates stopwatch. Timer1, 2, 3: Interval Training mode: Countdown timers for the Interval Training set.

  • Page 113: Index

    12h/ 24h time mode ... 44 Activity/ button sound on/off ... 41 Alarm settings ... 43 All that you can do with your Heart Rate Monitor ... 13 Altitude ... 48, 54, 68 Altitude on/off ... 34 Altitude reference point ... 34 BasicSet exercise ...
  • Page 114 Reset the stopwatch ... 56 Reset the trip distance ... 64 Return to the Time of day display ... 7 Selecting exercise type ... 21 Setting tips ... 46 Start an exercise set ... 56 Start cycling measurement ... 49 Start measuring your heart rate ...
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