I accidentally turned off the heart rate, how do i turn it back on/

Go into the menu, turn off alarms, beeps and chimes.

Here is the pdf version of the watches manual: http://www.sportline.com/manuals/900.pdf
Press the bottom metal sensor until the display flashes. Says its best to use the "flat pads" of your finer and not the tips.
Good luck.
RJ

Press and hold the reset button, for 5 seconds, while in Time mode. The heart monitor will reset and you should see the heart symbol appear.

Press and hold the reset button, for 5 seconds, while in Time mode. the heart monitor will reset and the symbol reappear on the screen

How do I turn the Heart Rate function on and off on my watch? Within the Date and Time screen, if the heart icon is showing, the heart rate function is on. To turn off the heart rate function, simply hold the Reset button until the heart icon goes away.

I got mine to start working by turning it on/off. This is done by pressing the top right, bottom right, and bottom left buttons for 5 seconds.

Click on my profile (escapement), then click on Tips and Tricks. There you will find link to all SPORTLINE watch manuals.Rate me, please.

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Click on my profile (escapement), then click on Tips and Tricks. There you will find link to all SPORTLINE watch manuals. Rate me, 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