Had a strange issue today with my Newton where it showed zero power for most of the first 8 minutes of a ride and a few sporadic low power bursts. The remainder of the ride showed some reasonable readings when going up some hills but reverted to the very low/zero power with a few bursts later in the ride. I assumed that I had put the wrong profile in so rode up and down a stretch of road just to see what the wind readings were and they were negative in both directions so I figured that I had the wrong profile. When I down loaded the file and changed the profile to the correct one plus analyzed the route, the first 8 minute section showed an average power of over 750W and a max of 1400. I can do 1400W but didn't on this occasion.
The remainder of the ride file looked about what I expected so it's really the first part where something has went off. I had the unit on the bike outside for 20 minutes before the ride and done a zero wind offset and set the altitude.
I have attached the files.
Note I'm on a cross bike with full winter gear.
Strange behaviour at start of ride file
- Steve_Davidson
- Posts: 44
- Joined: Fri Jan 11, 2008 1:05 pm
Strange behaviour at start of ride file
- Attachments
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- iBike_10_22_2012_1226_12_Miles analyzed route and changed profile.ibr
- file after using analyze route and changed profile.
- (182 KiB) Downloaded 255 times
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- iBike_10_22_2012_1226_12_Miles.csv
- original download with wrong profile
- (577.48 KiB) Downloaded 246 times
Re: Strange behaviour at start of ride file
This is indicative of a wildly "off" tilt cal.
After 5 minutes of riding the FW figured things out.
Please check your tilt calibration and let us know if this problem continues.
After 5 minutes of riding the FW figured things out.
Please check your tilt calibration and let us know if this problem continues.
John Hamann
- Steve_Davidson
- Posts: 44
- Joined: Fri Jan 11, 2008 1:05 pm
Re: Strange behaviour at start of ride file
Thanks. I've checked that and it looks like it was off. I didn't have the slope checked on the screen display but it is quite clear now.Velocomp wrote:This is indicative of a wildly "off" tilt cal.
After 5 minutes of riding the FW figured things out.
Please check your tilt calibration and let us know if this problem continues.
cheers
Steve