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When it comes to your training, it’s all about the detail. Like being able to personalize every aspect of your workout. The RS400 meets all these elements head on by helping you plan, monitor and analyze each training session.
Synchronizes with the Polar ProTrainer 5 software for guidance, analysis and creating individual training settings. Measures your heart rate combined with flexible training features and has a highly visible display for easy reading during training. User configurable display for personalization of your preferences.
More detailed information under
"Great information on this product"
(see below)
Polar RS400 wrist unit
Wearlink coded chest transmitter with elastic strap
Getting Started Guide
Customer Service Card
Polar ProTrainer 5 Professional Training Software
Two Year Warranty
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How to transfer data to Polar ProTrainer 5 via IrDA
To connect your Polar product to Polar ProTrainer 5 software, you will need either an external or internal IrDA device, for instance the Polar IrDA USB 2.0 Adapter.
To edit settings:
Check in Options → Preferences → Hardware that you have the correct IR Communication Port.
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To transfer data:
1. Press the lower right button of your Polar product to enter Connect mode.
Do not press any other button.
(When using AXN 500/700, press the start button once, and then the lower right button enter Connect mode.
Do not press any other button.)
2. Face the Polar product to the IrDA device/internal IrDA port.
You should have this icon in the system tray (bottom right of your computer display) to indicate that you have established connection with the computer.
If you have an internal IrDA port, please see that the Polar product and the laptop infrared windows are parallel to each other. You may help this by bringing the laptop closer to the edge of the table.
3. To transfer data, you can either choose to a) synchronize exercise data between the Polar product and the Polar ProTrainer or b) edit settings in the software and then transfer them to the product.
a) To transfer exercise and/or training plan data
Click Transfer Data 
A Software Preferences window appears.
2. Click OK.
If Software Preferences window is not displayed, go to Options → Preferences → Transfer Data to select transfer settings.
If you have created a training plan a given day, and you want to transfer it to your Polar product, select Update training program in Polar product in Software Preferences.
f you are uncertain on whether your Polar product can receive a training program created in the ProTrainer 5, please check the Polar product user manual or the product page at www.polar.fi.
A transfer window indicates that connection is established.
Once the transfer is complete you will find your exercises on the appropriate dates in the Calendar. A date that has exercises you have not yet analyzed (you have not entered the Training Diary view on this date) has a colored corner.
If you have recorded your heart rate as R-R data (beat-to-beat heart rate), you will get two files: one file for R-R data which only contains heart rate data, and one for heart rate, speed, altitude, etc, taken every 1, 5, 15 or 60 seconds, depending on your choice. Note that with S810/S810i R-R recording will only give you one file.
b) To edit settings
1. Click 
Infrared Connection window appears and the settings data located on your Polar product are automatically read to the software.
2. In the Polar product settings window, select Exercise Files to get the list of exercises currently on your Polar product.
Go to the settings you want to edit and click the transfer button in the bottom right corner to transfer the edited settings to the Polar product.
The settings, and therefore the various settings dialogs, vary according to features available in the Polar product. |
If Polar IrDA 2.0 Adapter is not working
1. Check that the Polar IrDA USB 2.0 Adapter is compatible with your Polar product.
2. Check the data transfer instructions for the software you are connecting with. For ProTrainer 5, see How to transfer data to Polar ProTrainer 5 via IrDA. Depending on your system, recognizing the Polar product might take a moment. Please be patient.
3. If you are using Polar PC software (e.g. WebLink, ProTrainer 5), check that you have the latest update available. For example in ProTrainer, go to Help → Check for updates. For more information, see Polar support for your software.
4. If you still cannot transfer data:
a. Check that the adapter light flashes. If no light flashing or the light is solid, unplug and re-plug the adapter into the USB port.
b. If you are using a HUB, try instead to plug the Polar IrDA USB 2.0 Adapter directly to your computer’s USB port to eliminate the HUB as the cause for the trouble.
c. Check that the adapter is plugged into the same USB port it was in when you installed the driver.
d. In the Device Manager, check that the Polar IrDA USB 2.0 Adapter is working properly. On your computer desktop, right-click on My Computer and select Properties → Hardware → Device Manager or go to Start → Settings → Control Panel → System → Hardware → Device Manager.
If you can find the IrDA adapter in the Device Manager but you cannot make it work, try removing and reinstalling the drivers for the adapter.
If the device is not working properly, you can update the driver from the Device Manager (Polar IrDA USB 2.0 drivers).
Do not install the adapter's own drivers on Vista. For more information see Installing Polar IrDA 2.0 adapter to Vista.
Check that you have the correct settings in the compatible Polar software. For example in ProTrainer 5, go to Options → Preferences → Hardware → IR Communication Port, select IrDA.
If you still cannot transfer data from your Polar product with your Polar IrDA 2.0 Adapter, the IrDA device could be broken.
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Polar Fitness Test and OwnIndex
The Polar Fitness Test resulting an OwnIndex is developed to measure aerobic (cardiovascular) fitness. It predicts maximal aerobic power (maximal oxygen uptake, VO2max in ml.min-1.kg-1). This indicates how many millilitres of oxygen your body is able to transport and use per each kilogram of your body weight in one minute.
The test is targeted to healthy adults. It is fully automatic and can be performed at rest in less than five minutes. No other equipment such as treadmill is needed. It is an easy, safe and quick way to estimate your maximal aerobic power. It is as reliable as any other submaximal fitness test.
The Polar Fitness Test is based on
Resting heart rate
Heart rate variability
Gender
Age
Height
Body weight
Self-assessment of the level of long-term physical activity (last 6 months)
How reliable is the Polar Fitness Test
Validity of a test means that the test measures what it is supposed to measure and not something else. The Polar Fitness Test was originally developed on 305 healthy Finnish men and women in a study, where VO2max prediction was developed using artificial neural network analysis. The correlation coefficient between the laboratory measured VO2max and the neural network prediction value was 0.97 and the mean error in the VO2max prediction was 6.5 % which is good compared to any other predictive tests of VO2max.
In further development of the test, 119 fitness measurements of healthy American men and women were included in the final development of the neural network, making a total of 424 subjects. Based on these results the artificial neural network was modified into Polar Fitness Test. The test was validated in a study on 52 healthy men, who didn't belong to the group on whom the test was developed. The mean deviation in the Polar Fitness Test prediction was less than 12 %. The validity of the Polar Fitness Test is considered to be good.
The reliability of a test is a measure of how consistent and reproducible the test results are on consecutive trials. The reliability of the Polar Fitness Test is good. When 11 subjects repeated the test in the morning, in the middle of the day and in the evening during eight days, in both sitting and laying positions, the average individual standard deviation of consecutive test results was less than 8 % from the individual mean value. The standard deviations calculated separately for each time of the day were all smaller than the standard deviation of all results. This indicates that the test can be conducted at any time of the day but it should always be repeated at about the same time. |
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Why do OwnZone limits vary?
OwnZone can be determined for every exercise session separately. At least it should always be determined when changing exercise environment, exercise mode or if you have abnormal feelings about your physiological state when starting the exercise.
OwnZone may change even daily because maximum (HRmax) and submaximum heart rate responses vary. It is affected by even small changes in physical condition. In addition, factors like intensity and mode of exercise, environmental temperature, body position, state of mood and eating and drinking habits as well as recovery from earlier exercise affect the heart rate response and thus OwnZone.
Differences of 5 to 10 beats are common, but variations up to 30 bpm can occur – in fact they show how sensitive the OwnZone feature is. OwnZone can be considered as a tool to learn about your body and its reactions.
Training tends to decrease HRmax and because the percentage limits of OwnZone Basic (65-85% HRmax) do not change very much, the OwnZone beats per minute (bpm) may decrease. |
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Benefits of Heart Rate Monitoring
Why is it important to monitor your heart rate when you exercise?
Your heart rate is a convenient, reliable, personal indicator of the intensity of your exercise.
It's good to know the intensity of your exercise so you can vary it depending on your fitness level and the goals you want to achieve by exercising.
Heart rate monitoring brings following benefits to all levels of users:
Exercise Beginner
Teaches you about your body's reaction to exercise
Keeps you from starting out too hard (as beginners are often tempted)
Helps you control the intensity of your exercise routine
Provides feedback on your improvement
Regular exerciser
Helps you control the intensity of your exercise program under different circumstances
Helps you fine-tune your program for the best results
Gives you plenty of feedback both during and after a session, teaching you more about your body's reaction to exercise
Helps you see how you're progressing
Serious exerciser
Helps you make sure you work out at the right planned intensities for your training program (hard enough on hard days, light enough on recovery days, enough recovery between intervals, etc.)
Enables you to track and accurately adjust your training program
Teaches you about your body's reaction to training, providing an early warning of overtraining, flu, etc.
Provides feedback on your progress |
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How to Determine Your Maximum Heart Rate
The most accurate way of determining individual maximum heart rate (HRmax) is to have it clinically measured, usually on a maximal treadmill or by taking a bicycle stress test supervised by a cardiologist or exercise physiologist. HRmax can also be estimated by using the commonly used formula: 220 minus age. Research has shown that the formula is not very accurate, especially for people who have been fit for many years or for older people. The HRmax-p score, however, predicts individual maximum heart rate value more accurately. This feature is included in most Polar running computers.
If you have done some hard training in recent weeks and know that you can safely reach maximum heart rate, here is a simple test you can take.
You should consult your physician before undertaking this test. We also recommend you take the test together with a training partner.
Step 1: Warm up for 15 minutes on a flat surface, building to your usual training pace.
Step 2: Then choose a hill or stairwell that will take you more than 2 minutes to climb. Run up the hill/steps once, building to as hard a pace that you can hold for 20 min. Return to the base of the hill/steps.
Step 3: Run up the hill/steps again, building towards a pace you can just about hold for 3 km. Note your highest heart rate. Your maximum is approximately 10 beats higher than the noted value.
Step 4: Run back down the hill allowing your heart rate to drop 30 to 40 beats.
Step 5: Run up the hills/steps once again at a pace that you can only hold for 1 minute. Try to run half-way up the hills/steps. Note your highest heart rate. This brings you close to your maximum heart rate. Use this value as your maximum heart rate to set training zones.
Step 6: Make sure you get a good cool-down of a minimum of 10 minutes.
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Different Training Heart rates are used for Different Purposes
Training heart rates are ranges of percentages of your maximum heart rate (HRmax).
Each range is useful for different purposes and is associated with different fitness benefits.
Training heart rate 50-60% HRmax- Great for recovery sessions.
Training heart rate 60-70% HRmax- Improves the heart's ability to pump blood- Increases the number of small blood vessels in your muscles- Increases the enzymes in your muscles responsible for oxygen metabolism- Increases the strength of your muscles, tendons, ligaments and bones- Improves your endurance- Burns fat as the body's main energy source at this intensity
Training heart rate 70-80% HRmax- Also called the "steady state" because it's the fastest pace you can maintain for long periods of time (for example, a competitive Ironman athlete will race near this intensity)- Accustoms the body with a faster pace- Improves endurance- Begins to raise the speed you can maintain without building up lactic acid (your anaerobic threshold)- The more fit you are, the greater the percentage of fat your body uses as fuel, enabling you to perform longer at this rate while preserving limited stores of glycogen
Training heart rate 80-90% HRmax- At this intensity, you begin to "go anaerobic" and build up lactic acid (reach your anaerobic threshold)- Your anaerobic threshold increases along with your fitness- This intensity can be maintained for about one hour in competition
Training heart rate 90-100% HRmax- Is only needed for sprint training - racing over short distances (track sprinters, short-distance swimmers). |
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A Healthy Heart Through Training
The cardiovascular system serves several important functions in the body.
For example, it delivers oxygen and nutrients to and removes carbon dioxide and metabolic waste products from every cell in the body. Your body's cardiovascular system has three components:
The heart (cardiac muscle)
The blood vessels
The blood
The heart is the pump that moves blood from the lungs (where the blood picks up oxygen) to the muscles (which burn the oxygen as fuel) and back to the lungs again. The harder you are training, the more fuel your muscles need and the harder your heart has to work to pump oxygen-rich blood to the muscles.
As you get more fit, your heart is able to pump more blood with every beat. As a result, your heart doesn't have to beat as often to get the needed oxygen to your muscles - so both your resting heart rate and your exercise heart rate (at any given exertion level) decrease.
Heart rate is one of the simplest and most informative of the cardiovascular parameters. When you start training, your heart rate increases rapidly in proportion to the intensity of the training. In Polar Heart Rate Monitors the transmitter in the belt detects the electrocardiogram (ECG), the electric signal originating from your heart. The transmitter then sends an electromagnetic signal to the Polar wrist receiver, which shows you information about your heart rate. |
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Fluid Balance
Whether you're training in hot or cold weather, you need to drink frequently.
Over long-term activity, your exercise tolerance decreases because of the water your body loses through sweating - unless you adequately replace the lost fluids. For marathon runners, fluid losses can be as high as 5.4 liters (1.5 gallons) per hour.
If you don't drink enough, you become dehydrated and your body's total blood volume drops. Because the heart has access to less blood, it has to pump faster to circulate the same amount of blood - and your heart rate rises. If you don't replace the lost fluids by drinking, your heart rate will increase, and your ability to perform will decrease rapidly.
So drinking fluids during exercise has several benefits:
Fights dehydration
Offsets body temperature increase
Minimizes cardiovascular stress |
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Introducing Training Changes
Our bodies take time to adapt. Give yours the opportunity adjust slowly to any changes you make in your training routine. The following guidelines explain how.
Training Volume
The "10% rule" is a useful guideline. Don't increase the volume of your workouts (how much you exercise and for how long) by more than 10% per week. More experienced athletes can probably get away with increasing their volume by 15 or 20% during periods of lesser volume.
Training Intensity
Suddenly starting to do hard, 90% effort intervals is just asking for injury or overtraining stress. Instead, introduce harder training into your routine slowly and gradually. Start with just a few 80% effort repeats, and then build slowly to doing a full set of 85-90% intervals.
Equipment
Even a small change in your equipment or environment - your brand of running shoe, the type of surfaces or terrain you run on, the seat height or seat position of your bike or even the type of pedals you use - can stress your body and cause an injury. Introduce these kinds of changes with care, staying aware of what feels different. |
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Recovery
If you train very intensively, you need adequate recovery between training sessions.
Exercise puts positive stress on the body by forcing it to function outside its comfort zone. During rest, the body will make adjustments to better face the challenge next time you exercise. These adjustments are what will make your body stronger. In other words, fitness improves not during exercise but during rest. Giving your body ample time to recover from exercise is therefore crucial to getting fit.
Disregarding the need to rest and recover is quite common practice and may lead to injury, overtraining or fatigue. Resting properly isn't the same as skipping workouts or being lazy. Resting is about giving your body the time it needs to get stronger and fitter.
Suggestions for recovery:
Take one or two days off per week from exercising
Follow a hard workout day with an easy day
Don't be afraid to take a day off or reduce training if you're tired |
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Stretching
Whenever you exercise, be sure to stretch.
Stretch first after your warm-up, when your muscles aren't so tight, and again after the cool-down period. Stretching for five minutes after you warm up will improve your workout and help prevent injuries.
Why? Because repetitive exercise tends to reduce muscle flexibility. Also, tissues like muscle and skin lose elasticity with age. So if you increase the intensity or duration of your workouts, maintaining muscular flexibility in your lower legs, thighs, gluteals and back will become even more important.
There are stretching techniques for almost every major muscle group. If you aren't familiar with different techniques, consult any sports physiologist or coach for advice. Below are some tips to help you stretch properly no matter what technique you use.
Stretching Tips
Never stretch cold muscles. Be sure to warm them up before stretching.
Hold each stretch for 30-60 seconds to give your muscle time to adapt to the stretch.
Never bounce in a stretching pose or force a muscle into a position that causes pain.
Relax and breathe deeply and slowly while holding each stretch position.
If you are stretching your arms, legs or sides, remember to stretch both sides. |
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Tapering
Tapering refers to a period of easy training immediately before a competition.
Before an important race, you might take an entire week of easy, low-volume training (25% of your high-volume week with one or two short, sharp, faster sessions early in the week).
Before a regular weekend race, you might take two to four days easy.
Rest to be at your best! |
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Warming up and Cooling Down
Much like a high-performance car on a cold winter morning, our bodies need to start with a slow "warm-up" period before we can increase the pace into a full workout.
This crucial period allows blood to be directed from the abdominal organs and towards the exercising muscle so that it can get the oxygen and energy it needs. Blood also moves toward the skin to allow the extra heat created to escape, causing the body to sweat.
At the end of a workout, the cool-down period allows the body to flush out metabolic waste from exercise, such as lactic acid. It also ensures that the heart rate and distribution of blood flow returns to normal gently.
Warm-Up Examples
For Beginners:
Run - 10 minutes starting at a fast walk, easing into a slow, comfortable jog
Cycle - 10 minutes spinning (pedaling with a high cadence of 90-100 revs per minute) easily in a low gear
Swim - 10 minutes easy swimming in varied strokes, also taking the time to practice stroke drills and technique
For Competitive Athletes:
Run - 5-10 minutes warm-up for runs up to 80% HRmax. 15-20 minutes for hard intervals or time trials, finishing the warm-up with a thorough stretching session.
Cycle - 10-15 minutes warm-up for any ride up to 80% HRmax. 30 minutes warm-up for hard intervals or time trials, finishing the warm-up with a thorough stretching session.
Swim - 800m using different strokes, stroke drills. |
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Why use a heart rate monitor?
By monitoring heart rate, the simple observation that the harder we exercise, the faster our heart beats is put to good use. Professional athletes and amateurs alike have for decades been relying on the information provided by their heart rate monitor for the following reasons:
A heart rate monitor is like a rev counter, giving a precise measurement of exercise intensity.
Training at your own ideal pace is made possible with a heart rate monitor.
Direct measurement of heart rate during exercise is the most accurate way to gauge performance.
Progress can be monitored and measured, increasing motivation.
It maximizes the benefits of exercise in a limited amount of time.
It introduces objective observation. Are you on the right track? Are you improving?
It is a tool for regulating frequency and intensity of workouts.
Because of the immediate feedback it provides, heart rate monitoring is an ideal training partner.
How does it work?
When you start training, your heart rate increases rapidly in proportion to the intensity of the training. In Polar Heart Rate Monitors, the transmitter belt detects the electrocardiogram (ECG - the electric signal originating from your heart) and sends an electromagnetic signal to the Polar wrist receiver where heart rate information appears.
The heart moves blood from the lungs (where the blood picks up oxygen) to the muscles (which burn the oxygen as fuel) and back to the lungs again. The harder the training, the more fuel the muscles need and the harder the heart has to work to pump oxygen-rich blood to the muscles.
As you get fitter, your heart is able to pump more blood with every beat. As a result, your heart doesn’t have to beat as often to get the needed oxygen to your muscles, decreasing resting heart rate and exercise heart rate on all exertion levels. |
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Measuring for the best fit with your chest transmitter
Because Polar offers more than one size (elastic strap sizing), we would like to help you have the proper fit.
The measurement for the transmitter should be taken right below the pectoral muscles, or breasts. If you are borderline between two sizes, go with the next size larger.
Transmitter sizes are calculated in inches and should be based on personal comfort level. If you order the incorrect size, you can exchange just the elastic strap portion of the transmitter, or order a replacement located in the strap area of accessories. |
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How to take care of your product:
Care of the Transmitter -
Proper care of the transmitter after use ensures longer service life for the transmitter.
• Wash the transmitter regularly after use. T31, T31C, T61 transmitters should be washed with a mild soap and water solution. Dry it carefully with a soft towel after washing.
• WearLink transmitter strap and connector should be rinsed with water. Never store the transmitter when it is wet, and store the strap and connector separately. Sweat and moisture can keep the electrodes wet and the transmitter activated, which shortens the battery life.
• Store your Polar product in a cool and dry place. Make sure that the electrodes do not contact anything damp, such as sport towel or wet elastic strap. Do not store a wet transmitter in any kind of non-breathing material, such as a plastic bag or a sports bag.
• Do not bend or stretch the transmitter. This may damage the electrodes.
• Readjust the elastic strap periodically so that the transmitter fits firmly around the chest.
• Only dry the transmitter with a towel. Hard-handed handling may damage the electrodes.
• Keep your Polar product out of extreme cold and heat. The operating temperature is -10 ºC to 50 ºC/ 14 ºF to 122 ºF. Do not expose the Polar prodcut to direct sunlight for extended periods, such as leaving it in a car.
• T31, T31C, T61 transmitters can be washed with mild soap and a gentle brush. If the electrodes appear discoloured, the transmitter needs to be washed. Do not use any alcohol or a solvent based detergent.
• WearLink strap and the elastic strap of the T31, T31C and T61 should be washed regularly in a washing machine at 40ºC/104ºF or at least after every fifth use. This ensures reliable measurement and maximizes the life span of the transmitter. Use a washing pouch. Do not soak, spin-dry, iron, dry clean or bleach the strap. Do not use detergent with bleach or fabric softener. Never put the transmitter connector in the washing machine or drier!
• If your T31, T31C or T61 transmitter does wear out, a new one is available at a special replacement cost. Polar recycles used transmitters. (Please note, that this does not apply to WearLink transmitters.) |
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How to use a chest transmitter
To take off the chest transmitter, twist the connection as if you are ringing out a kitchen towel.
To keep the chest transmitter clean, simply wipe off with a clean towel after each use. Occasionally wash in a washing machine on cold with a small amount of detergent. Hang dry. |
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Abnormal Heart Rate Readings During Exercise
There can be several reasons for abnormal or irregular readings during exercise. Due to the same reasons, heart rate may stay at the same value for a long time or the heart rate stays at zero (0).
1. Poor contact between the skin and the electrodes of the transmitter
For accurate heart rate measurement, the contact between skin and the electrodes should be as good as possible. Polar transmitters measure the ECG signal from the chest, where it is the strongest. The weak heart-generated signals need to be accurately measured before the calculation of the heart rate. It is therefore important to ensure that the contact between the skin and the electrodes is as good as possible.
Here are some tips how to ensure good contact:
1.1. Moisten the grooved electrode areas on the back of the transmitter. At the beginning of the exercise session your skin may be dry and the moisture will help ensure better contact. When you start to sweat the contact will improve because the salt in the sweat conducts the electrical signals very well. Saliva is a good conductor as well. However, if you have a WearLink31 or WearLink W.I.N.D transmitter, it is essential that you moisten the electrodes well under the tap water before the exercise.
1.2. Tighten the elastic strap of the transmitter. If the transmitter is loose, the movement of the electrodes disturbs the detection of the ECG signal. If the standard strap does not fit satisfactorily, larger and smaller elastic straps are available as accessories.
1.3. The type of the ECG signal slightly varies from person to person. The form of the ECG signal can depend on form of the chest, the anatomical location and position of the heart, position of the electrodes and the amount of body fat. If the ECG signal is weak, disturbances can more easily spoil the signal. Find the best contact by turning the transmitter left or right, or place it lower or higher. There have been cases where the transmitter detects the heart rate better when it is turned upside down so that the Polar logo is upside down and facing out, or even when attached on the persons back with the Polar logo upside down and facing out.
1.4. For active sports like aerobics or marathons, women can use the accessory Heart Bra which makes the transmitter stay in place better. Ask your local Polar dealer or distributor for the availability of this product.
1.5. Hairy chest may also weaken the contact. Try to find the best possible position for transmitter.
1.6. In demanding cases, use conductive electrode lotion or gel to improve the contact. After using them, it is very important to wash the transmitter carefully. However, it is not recommended to use conductive electrode lotion or gel when using the WearLink31 or WearLink W.I.N.D transmitter since the lotion or gel can block the electrode area. |
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Trouble Shooting problems with your Polar Transmitters
1. Is the transmitter belt worn correctly? The belt should be flat against the skin, with the Polar logo right side up.
2. Are the electrodes on the transmitter moist? Moistening the transmitter electrodes is essential for good skin contact to obtain reliable and accurate readings.
3. Is the transmitter clean? Regular cleaning of the electrodes is recommended - see Care and Maintenance guide or User manual.
4. Is the receiver within a 3 foot range from the transmitter?
5. Are the heart rate signals very high and abnormal? Relocating the receiver may help. Check the list of sources of disturbances in this document below.*
6. Check that there are no other transmitters within 3 feet if you have a non-coded Polar HRM. Other Polar HRMs can cause inteference.
7. Has the receiver battery been changed by an unauthorized party causing internal damage to the receiver? If not sealed properly, moisture can enter the receiver causing permanent damage to the internal components.
8. Have the buttons been pressed under water, causing leakage in the receiver?
9. If the receiver display is frozen, carry out global reset, if your model has that feature (see the user's manual for global reset instructions).
10. The chemicals in some swimming pools and seawater may effect the ECG signal pick up by the transmitter resulting in abnormal readings.
11. The ECG signal strength varies depending on the individual's tissue composition. The percentage of people who have problems in heart rate measuring is higher in water environment than in normal use.
12. If you are a heart patient, have a second person use the unit under the same conditions and see if the problem still exists.
*Sources of electromagnetic signals can cause erratic and faulty heart rate readings. Such sources include other heart rate monitors, televisions, computers, cars, electric motors, bike computers, mobile phones, antennas, high voltage power lines, electric/invisible fences and certain motor driven exercise equipment. The problem can usually be resolved by relocating the receiver. Static build up in certain clothing can also cause interference.
May I replace the battery in the Receiver myself?
We recommend that you send your heart rate monitor to one of Polar’s authorized service centers, as the receiver should be tested for water resistance using special equipment after battery replacement. However, if water resistance is not a concern, you may take your receiver to a local watch repair shop for battery replacement. Please make sure to inform them that your unit is water resistant. |
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Display is blank or fading in the Heart Rate Monitor
This may be a consequence of low battery voltage. This event is normal if the temperature is near 0 Celsius degrees (+32 Fahrenheit). However, if this appears in room temperature, it is sign that the product needs a new battery. This may also be tested by pressing light button. If the readings on the display go dimmer when light button is pressed the battery replacement is needed.
In case of battery replacement, it is recommended to be done in the local authorised Polar Service. |
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A Pacemaker and the Polar Heart Rate Monitor
Persons who have a pacemaker or defibrillator 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.
The manufacturer of the defibrillator has to approve the simultaneous use of Polar Heart Rate Monitor and the defibrillator.
Technical information about radiated magnetic field of the transmitter:
Polar Non-Coded Transmitter:
Transmission frequency: 5kHz
Means of transmission: On/Off -modulation, magnetic field by means of a 5-7ms burst for each heart beat.
Polar Coded Transmitter:
Transmission frequency: 5kHz
Means of transmission: On/Off -modulation, magnetic field by means of a train of three 5ms bursts for each heart beat Time Interval Coding.
The strength of the magnetic field right next to the transmitter is 5 uT (micro tesla) and 1 nT at 1 m distance. Even in the worst case the radiated power is under 2 nW |
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POLAR
RS400 Running Computer Heart Rate Monitor with
Wearlink Coded Chest Transmitter
Color: Silver
Geared for: Cross-Training, Running
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| Retail Price $269.95 |
Sale Price $249.95 |
FREE OVERNIGHT SHIPPING
(Monday - Friday)
included |
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20 to 30 inches |
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30 to 45 inches |
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46 to 60 inches |
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Replacement
Elastic
Strap |
Replacement
Wearlink Coded
Chest Transmitter
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S1 Foot Pod
measuring your
running speed/pace
and distance |
IrDa USB
2.0 Adapter
for data transfer |
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Universal
Bike Mount
to view from
cycle handlebars
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