PM5 force curve units

Maintenance, accessories, operation. Anything to do with making your erg work.
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Gonzack
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PM5 force curve units

Post by Gonzack » September 25th, 2022, 9:29 pm

Hello!

I’m new in the rowing world, this week I had the opportunity to buy a C2 second hand in very good condition, I’m watching on YouTube some good channels about rowing and reading here some information

And going to my question about force curve graph , I have noticed all the pictures I come across display Kg and lbs on the left of the graph and mine says N and lbf. How can I change that to kg and lbs? Or it’s doesn’t matter?

Thanks !

Gonzack
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Re: PM5 force curve units

Post by Gonzack » September 26th, 2022, 5:57 pm

Here is a pic of the curve graph on my pm5, as you can see the units are N and lbf

Image

JaapvanE
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Re: PM5 force curve units

Post by JaapvanE » September 26th, 2022, 6:22 pm

Those are indeed the correct units: the Kg is the unit for weight (mass), not for Force. So it would be odd to report a force in kilograms.

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Ombrax
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Re: PM5 force curve units

Post by Ombrax » September 26th, 2022, 7:20 pm

Since the PM doesn't show numbers on the Y axis it really doesn't matter what the units are, as long as it's really measuring (I should say calculating) Force.

It could be dynes, poundals, whatever...
Last edited by Ombrax on September 26th, 2022, 8:13 pm, edited 1 time in total.

Gonzack
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Re: PM5 force curve units

Post by Gonzack » September 26th, 2022, 7:33 pm

Thanks for the answers,

just wondering why all the graph photos i've seen on internet are showing it in kg and lbs, but mine in N and lbf

jamesg
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Re: PM5 force curve units

Post by jamesg » September 27th, 2022, 2:33 am

My PM5 shows N and lbf, probably a recent update to ISO units. Ergdata shows the force in Newtons.
08-1940, 179cm, 75kg post-op (3 bp).

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