Question about Polar F11 Heart Rate Monitor
I just replaced my ECG 3 battery. It's a CR2025 battery for the watch. You have to remove the watchband first, by pushing in on the pins that attach the band to the watch case. It helps to have a very small screwdriver because you have to push on a tiny ring. Once the pin is out of the hole in the watch case, wiggle the band a little until the pin comes all the way out. Don't let it pop out across the room! Remove the other side of the band the same way.
The back is held on with 4 small Phillips screws. Take them all out and remove the back. You'll see the battery which is held by a stainless retainer clip. Removing this clip is tricky: you have to stick a pin or needle in the middle of one end of the clip and very gently pry the clip out by moving the needle toward the middle of the battery. It's hard to even see what you're doing without a magnifying glass. The remaining side of the battery retainer clip should come off easily. Remove the battery and put the new CR2025 in with the + side facing out. Replace the battery retainer clip. Replace the back, being sure that it's positioned so the tiny gold spring on the back of the watch will contact the uninsulated spot on the stainless back. Also be sure you haven't somehow moved the black O-ring seal out of position, which would let water in. Screw the 4 Phillips screws back in and reattach the band. Your watch should be running again!
Posted on Jun 26, 2009
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Posted on Jan 02, 2017
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u may have started wearing a Polar F11 Fitness heart rate monitor to help you keep track of your pulse during cardiovascular exercise. The monitor consists of a strap with electrodes that you attach to your chest, which transmit heart rate data to a receiver worn on your wrist like a watch. The wrist unit stores data and settings that you can customize, such as your weight, height and target heart rates. However, you may wish to reset the unit and start over with new settings. You can reset your Polar F11 by following a few easy steps.
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