3 mm is close enough in my son’s case. Now that you mention it, the only difference I see might me the distance between the sensor and the computer. My son has his computer mounted in the center of his stem. His frame is so small that he has a hard time getting the normal size bottles out of the Tacx Tao bottle cages. The distance is much shorter. Where do you have the computer located? Maybe you should try turning the cranks with the computer located very close to the sensor.
Does the sensor flash red the first few times the crank passes it. (after a few minutes rest.) If not, it is not working.
Next, try holding the watch/computer down near the sensor. Then, if that works, try putting the watch/computer on your stem, just off to the side.
Also, I found that, since I’m near the limit of distance recommended, I have to have the computer mount at the rear of my aero bars, a little tilted and as far left as possible.
docfuel… I do not remember the CS200cad cadence sensor flashing red ever. I am almost sure that the sensor of the CD200cad has no light, so if the sensor does not flashes it does not means that the sensor is not working properly. As you say I think that seeing what happens with the sensor closer is the next step.
I haven’t seen any evidence of flashing… but then again, I’m not getting a reading either. I’m already mounting the computer on my stem, making the distance roughly 29 inches. That’s near the limit, but still within it. is there any way to up the strength externally, or do I have to do the shenanigans of opening the sensor up?
Alpern… You can open other Polar cadence sensors but the CS200cad cadence sensor can not be opened to change its batteries. This particular sensor is recycled. The sensor should last about 2500 h. I also do not think that the signal strength can be raised.
I hope that you get a reading with the computer closer to the sensor. Good luck.
I must admit that I just assumed that these two things would be the same. If not this would be a loss, because, without them i could see difficulty. Check the instruction manual. Try holding the computer close to the sensor with the cranks turning. (You can turn them backward, it still should work.
I moved the computer - and got a reading, finally. It’s at the very extreme limit of the range (someone at Polar really ought to reconsider this kind of thing)… I have it mounted on my stem, and moved it back as far as it could go, and I finally get a cadence reading. I have the sensor mounted in the same spot as Jr…
I’m hoping that when I get my steerer re-cut to take out the spacers over the stem that the signal will be even stronger. In any case it will improve aesthetics.
When I purchased my cs200cad, I could not get a speed reading. I did all the trouble shooting. Finally took it back to the LSB I purchased it from and got a new speed sensor…Put it on and it worked…Alper, I think your cadence sensor may be bad. Try a different one. And yes, Polar does recycle those sensors. They would like you to send it back to them when it dies, not sure if they give out a new one or one at a reduced price. Send them an e mail!
