Understanding PPM accuracy on a Laser Tracker

L

lee01

Sorry about this guys but my head is in bits at the moment and can not get my head around the following:

I’ve been looking into some Laser Tracker measurement devices and have come across an accuracy reading of +/- 2.5ppm and +/- 10ppm? What does this mean and how do you calculate this in normal micron format?


Many thanks for your assistance!

Lee01
 
R

Rick Goodson

lee01,

As with your previous post, there doesn't seem to be much help here. I am copying this to the 17025 thread. Maybe the MSA experts can help.

Regards,
 
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