Why does my Polar S...
 

[Closed] Why does my Polar S725 . . . .

 SST
Posts: 5
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sometimes, but not always, tell me I'm going twice as fast as I really am?

Seems to be high speed that upsets it. Then when I slow down it thinks I'm still going fast. I have to stop, and then ride again, and it's fine. (til next time)

Batteries need replacing in TX or RX? They are not that old (maybe a year).


 
Posted : 26/07/2010 12:45 pm
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My 725 was garbage at speed and cadence..... Batterys in sensors used to last 6 months or so before giving erratic readings ....


 
Posted : 26/07/2010 1:07 pm
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Mine was fine.

Power lines gave erratic readings sometimes due to interference, but this was rare.

Could be the speed sensor itself but I dunno how - it's actually got a reed relay in it that's activated by the magnet - hard to see how that'd click accidentally. Tried adjusting the position of the sensor relative to the magnet?


 
Posted : 26/07/2010 1:16 pm
 SST
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I'm happy with the kit - it does everything I need and I never usually have a problem. I'll try replacing the batteries in the sensors and make sure it's all clean.

[i]hard to see how that'd click accidentally.[/i]

agree. I can imagine it missing a pass or two of the magnet, especially at speed, but seeing it when it's not there is weird!


 
Posted : 26/07/2010 1:57 pm