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Polar S710 speed sensor install question...(4 posts)

Polar S710 speed sensor install question...345
Apr 9, 2002 4:27 PM
At the risk of sounding like a complete idiot (and due to poorly illustrated instructions), how is the speed sensor supposed to be oriented relative to the fork? If strictly perepndicular to the direction the bike travels, the sensor seems way too long to be secured to the fork with the plastic ties and properly positioned to the magnet on the spokes.

Or should the thing be more parallel to the bikes direction of travel?
S510 same wayBNA_Biker
Apr 9, 2002 4:34 PM
I set mine up parallel and it works fine. The diagram "shows" perepndicluar and IT would be into the spokes.
re: Polar S710 speed sensor install question...Len J
Apr 9, 2002 4:43 PM
Use the distance from the magnet as a guide.

I had the same question when I installed mine, and used the 5MM max distance from the wheel magnet to determine positioning. If you start with it pointed straight forward from the fork (narrowest portion of the sensor forward, curved end against the pad you have put on the fork)& gently angle the sensor towards the magnet until you are within the 5mm distance, you can then tighten down the cable ties. You will know you are close enough to the magnet when the sensor flashes as the magnet goes by. I was worried that this wouldn't work (based on the drawings in the manual) but it worked fine.

One other thing, make sure the mount on the handlebars positions the watch level or slightly forward of level. I found that anything back from level resulted in intermittant pickup. This may seem like a problem, but the usefulness of the data is in analysis after the ride. You can still read the heartrate & main display, the only thing difficult to read is the small upper display. (Try a few positions, yours may not be a problem).

Good luck & let me know how you make out.

Len
re: Polar S710 speed sensor install question...345
Apr 10, 2002 11:15 AM
Thanks for the good advice. It's seems to be working fine.