Ive just had a new battery in the watch and went to exercise. The watch doesnt seem to pick up my heart rate it keeps displaying 00. Any ideas?

This heart rate monitor has a generic flaw with the sensor. The touch sensor fails after a few months of use. It is not a battery issue. Return to where you purchased it. Buy another brand. All of the drug stores carry this watch which has an abnormal return rate. The sensor fails after a few months while the watch function is fine. Seems like planned obsolescence.

First you need to understand that the Polar system is a medical grade device and it is calculating calories based on specific information that you have inputed and heart rate data from your heart.

Most treadmills and other exercise machines use a much simpler counter that is height and weight based to calculate calories and are generally over generous with their numbers.

Depending on the blood pressure machine you are using, the pulse (not heart rate) is coming through the brachial artery, again not quite as accurate as measuring r-r variance from your heart. There is a ton of literature you can read if you are into the accurateness of the system, but I will sum up with saying that you actual calorie expenditure will be closer on the Polar than on most other devices outside of a hospital. As too the heart rate this is also true, so more likely you are getting inaccurate numbers from the other devices.

If you want pinpoint accuracy then you will need to use the Polar RS800 or S810 devices that measure and display true R-R.

If Heart Rate is being displayed on the equipment in the gym, but not your watch, then your chest strap is transmitting fine, but the watch is not recieving the signal.

It is not uncommon that when a battery is changed outside of a polar authorized service center that something can happen to the internal electronics. I would suggest you send the watch into Polar and have them take a look. if you have had the watch less than 2 years they will most likely take it under warranty and correct the issue, at the very least they have equipment to test and diagnose both the watch and strap, although it sounds like your HR strap is fine since you are getting HR on the machines.

Check out my tips and tricks section for a guide on troubleshooting heart rate readings.

One other possibility if you changed the battery yourself (never recommended) is that some damage or moisture has gotten into your watch and made it impossible for the watch to read heart rate. This is a more common reason than you think and why all manufactures of Heart Rate monitors and other types of watches have you send them in to their authorized service centers.

This is really easy to do yourself. Get a CR1632 battery, unscrew the four screws on the back (dont tip the watch as there is a small spring in the watch), unclip the metal band holding in the old battery noting the way 'round the battery is in (minus side up), pop in new battery and push clip back down, when re-fitting the back make sure the spring mentioned earlier lines up with the white sticker with a hole in it on the inside of the watch back, screw down the back. After you have re done all your settings you may need to re-aquaint the watch with the strap, to do this put on the watch and strap, set the heart monitoring going, bring the watch up close to the 'Polar' logo on the chest strap until the time is displayed, should now be all set up.

Andy

Manger de la marde vous êtes des crosseurs!

Vous mériteriez d'être poursuivis pour faire perdre tant de temps aux gens, pour vous approprier les solutions que les bonnes gens trouvent et ensuite faire de l'argent avec.

the battery type is written on the back of the watch.

Make sure the back of the watch is spotless and your skin isn't too dry.

Yes, you definetely need battery replacement.
As the hart rate monitoring is most sophisticated part of the device, it has more IC (Integrated Circuits) than any other features.
More IC's means more power is needed, so, if the heart rate monitor is starting to malfunction, that's the very first sign of underpowered battery.
Find your nearest watch repair shop and ask for battery replacement.

Do not forget to rate, please.

Hello,

It sounds like most of you have the heart rate set to display in % of max heart rate. Most Polar products have the option of heart rate in BPM(beats per minute) or percentage of max.

If you look at the display during the exercise, you will see a % icon. You can turn it off in by hitting the back button and go down to HR view settings.

Hope this helps.

Chris @ Polar USA