PP V3 Does Not Seem Calibrate

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SoaringBear
Posts: 25
Joined: Sat Jun 20, 2020 8:53 pm

PP V3 Does Not Seem Calibrate

Post by SoaringBear »

Have enjoyed incorporating power into my training and the wealth of data I get. Looking for some help with calibration.Have had about a dozen rides, so I know my Garmin sensors and Garmin 520 communicate fine.

Attempting to calibrate, my unit does not operate per the provided instructions.
1. Wake up sensors. Can see them all on Garmin
2.Turn on PP in sync mode by holding button down 4 seconds. Unit turns on and correctly flashes green
3.Ride around to get successful pairing. Even if I pedal up to 20MPH, unit still doesn't sync. Yellow never glows. What happens is light continues to blink green, then the light goes out. Don't know what this means. The two possibilities are supposed to be solid yellow or solid red.
4a. I tried clicking button
4b. I tried powering off and back on and repeating 1-3.
4c. Tried just turning on with single click and light goes solid yellow,
5. I click button on PP and ride to get blinking red/green. Never got blinking red/green
6. Rode and power started going up 1,2,3 ... but it did not stop at 50 went past it. Kept riding and it did stop at 100.
7. Did test ride
8. Provided cal file and test ride for evaluation but have not heard back. Because there was no true out and back ride, I am not confident in the calibration.

A) What's next? Do I have a faulty unit that needs replacing?
B) Battery does not last even a week when turned off. Once, battery had a full charge. Went for ride 5 days later and power lasted 45 minutes. But per velocomp "NOTE: new PowerPod V3 takes about 3 months..."

Cheers
Kcblair
Posts: 124
Joined: Tue Apr 02, 2019 4:21 pm

Re: PP V3 Does Not Seem Calibrate

Post by Kcblair »

Same thing with steps 4c to 7. But I did a cal ride, when extracted to Isaac. KB
Velocomp
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Re: PP V3 Does Not Seem Calibrate

Post by Velocomp »

Please post your .ibr ride files to this thread.
John Hamann
SoaringBear
Posts: 25
Joined: Sat Jun 20, 2020 8:53 pm

Re: PP V3 Does Not Seem Calibrate

Post by SoaringBear »

Calibrated this morning and it went more nominally. cal and ride file are included.

Power readings are high. Thanks for the assistance.

Procedure used
1. Wake up sensors. Could see them all on Garmin
2.Turn on PP in sync mode by holding button down 4 seconds. Unit turns on and flashed green
3.Ride around to assumed successful pairing. Green light stopped flashing, then long red, then light goes off and stays off
4. clicked button and rode 15'. light glowed yellow
5. Rode forward and light flashed green/red
6. click to start and rode outbound leg. incremented watts up to 50 and came to complete stop.
7. turned around. meter read 0.
8. (clicked button. Guess I should not have). Regardless, rode back leg and unit counted up to 100

9. Went on longish ride to get power readings
Attachments
Velocomp_08_29_2020_0858_1_Miles_HiDef.ibr
(36.69 KiB) Downloaded 138 times
Velocomp_08_29_2020_0849_1_Miles_CalRide.ibr
(26.81 KiB) Downloaded 156 times
Velocomp
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Re: PP V3 Does Not Seem Calibrate

Post by Velocomp »

I fixed this in your "sand" post.
John Hamann
SoaringBear
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Joined: Sat Jun 20, 2020 8:53 pm

Re: PP V3 Does Not Seem Calibrate

Post by SoaringBear »

I am planing a ride with about 7000' of climb tomorrow and would like to limit/monitor my power using PP. If we don't have time to get a good calibration today, can I use the "better" calibration for good enough? Or, I pulled another calride and ride file from 7/19 in case they are better.

Thanks
Attachments
Velocomp_07_19_2020_0838_20_Miles_HiDef.ibr
(778.06 KiB) Downloaded 138 times
Velocomp_07_19_2020_0834_1_Miles_CalRide.ibr
(26.85 KiB) Downloaded 138 times
Velocomp
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Re: PP V3 Does Not Seem Calibrate

Post by Velocomp »

SoaringBear wrote: Sat Aug 29, 2020 4:19 pm I am planing a ride with about 7000' of climb tomorrow and would like to limit/monitor my power using PP. If we don't have time to get a good calibration today, can I use the "better" calibration for good enough? Or, I pulled another calride and ride file from 7/19 in case they are better.

Thanks
Load this profile (I had this in your other post) into your PP using the Edit/Edit Profiles feature, and you should be OK.

1) Connect PP to Isaac

2) Place profile on desktop

3) In Isaac, go to Edit/Edit Profiles

4) Click Import. Select profile and open it

5) The new profile should be highlighted. Click "Send to Device" and profile will be transferred to your PP
Attachments
SoaringBear.ibp
(540 Bytes) Downloaded 130 times
John Hamann
SoaringBear
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Joined: Sat Jun 20, 2020 8:53 pm

Re: PP V3 Does Not Seem Calibrate

Post by SoaringBear »

Hi John,

A few parameters are out of bounds so it would not load. See the attachment. What do you recommend I adjust the values to?

Thanks,

Dan
Attachments
Screen Shot 2020-08-29 at 7.35.14 PM.png
Screen Shot 2020-08-29 at 7.35.14 PM.png (40.36 KiB) Viewed 4316 times
Velocomp
Velocomp CEO
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Re: PP V3 Does Not Seem Calibrate

Post by Velocomp »

Do the following:

1) Connect your PP to Isaac
2) Go to Edit/Edit Profiles
3) Click "Extract from Device". This will extract the profile currently used

4) Click the "Advanced" tab. You will see 4.524 as your wind scaling
Screen Shot 2020-08-30 at 8.13.36 AM.png
Screen Shot 2020-08-30 at 8.13.36 AM.png (168.33 KiB) Viewed 4297 times
5) Type 3.017 into the Wind Scaling window
Screen Shot 2020-08-30 at 8.17.06 AM.png
Screen Shot 2020-08-30 at 8.17.06 AM.png (167.16 KiB) Viewed 4297 times
6) Click Send to Device

This will put the correct wind scaling into your profile.
John Hamann
SoaringBear
Posts: 25
Joined: Sat Jun 20, 2020 8:53 pm

Re: PP V3 Does Not Seem Calibrate

Post by SoaringBear »

Hi John,

Thanks for the support. The ride had the 4.524 value as I had already left before the correction was sent. I see that wind scaling in attached file ended up at 3.017.

The ride went pretty well except for one thing. When the bike was at a slight negative or positive slope the power reading would be 20w, or 40w or 50w. From experience, I think I was applying 100-150w in these conditions. Scenario would be coming down a hill and slope leveling off. You often have an idea of how to correct.

I currently have the PP attached to a fitting that attaches to bottom of Redshift aerobats. My Garmin is attached with a rubber spacer. The PP is attached with a hard metal spacer. I was wondering if the rubber spacer might be dampening the vibration/messing things up. I could take off the Redshift bars and attach the PP directly to handlebars. https://redshiftsports.com/utility-moun ... r-aerobars

Interesting. slope ranged from -19.9% and 18.9%. PP shows 5110 feet of climb. Garmin said 4485. Which would you trust more.

at 2:27 PP shows me coasting for an extended period. Don't know why but the cadence sensor stopped reporting. (Hadn't stopped riding-it just stopped. I was kind of surprised when it came back online.)

P.S. 523w maximum recorded isn't a lie. Out in the country a lot of dogs give chase. This power was to get away from a dog that looked like a cross between a pit bull and a Great Dane. :-) This dog had some long-legged speed!

Thanks,

Dan
Attachments
Velocomp_08_30_2020_0940_62_Miles_HiDef.ibr
(2.69 MiB) Downloaded 123 times
Velocomp
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Re: PP V3 Does Not Seem Calibrate

Post by Velocomp »

At mile 37.5 your PP was bumped, or rotated. This caused low watts for the next 90 seconds, until PP recalibrated itself.

It is better to have PP mounted directly to the handlebars.

Climbing algorithms can be different. Pick one, but then stick with it!

I see the cadence dropout. I don't know why it happened. You might want to replace the battery in your cadence sensor.

Your wind readings look fine, so I would not change wind scaling.
John Hamann
SoaringBear
Posts: 25
Joined: Sat Jun 20, 2020 8:53 pm

Re: PP V3 Does Not Seem Calibrate

Post by SoaringBear »

Hi John,

Thanks. On some of the descents there were some big hits (potholes). I assume that is what happened.

The low power reading when getting back on power wasn't the 2-3 second delay I have gotten used to. Under power the readings were 20-50watts for 10 seconds under power. It was odd.

Agreed. I will change battery in cadence sensor.

Will attach PP directly to handlebars.
SoaringBear
Posts: 25
Joined: Sat Jun 20, 2020 8:53 pm

Re: PP V3 Does Not Seem Calibrate

Post by SoaringBear »

Hi John and team,

Rode 55 miles over weekend and there was what seemed to be strong headwind or sometimes strong crosswind in the second file (18 miles). Geared down and pedaled harder. PP was recorded between 105-110w and didn't fluctuate much even if I felt like I was pedaling harder. I am sure it can be elusive, but experience with PP, the perceived effort of 14MPH into windy conditions felt like 155w. Could you look at the files and give me your perspective and let me know if you have any ideas/suggestions?

Thanks!

P.S. I haven't changed the mount position yet.
Attachments
Velocomp_09_06_2020_1538_18_Miles_HiDef.ibr
(675.38 KiB) Downloaded 134 times
Velocomp_09_06_2020_1119_37_Miles_HiDef.ibr
(1.6 MiB) Downloaded 136 times
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