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Posted: **Mon Apr 09, 2012 10:24 pm**

Jay Aitchsee wrote: ". . . The cms-50 has a timeline but it is not referenced to real time. As you probably know, it just starts running an elapsed timer when the recording starts. What I did with the cms-50 was creat artifacts at known times. Putting it on and taking it off will creat artifacts or spikes. Then all I had to do was stretch the snip of CMS-50 so that the known times of the artifacts matched the known times of the other data snips.

"In later sheets, I made a template in Draw with vertical hour lines which made lining up the snips even easier.

"Does that make sense?"

Jay

Thanks much, Jay, for the instruction. Makes sense and will help me to adjust (resize or stretch horizontally) graphs from different programs so their time axes match.

Btw, I find that the graphs in my software for the CMS-50F actually do have a clock time scale along the x axis. All I'll have to do is stretch the pulse-ox graph to match exactly the ResMed ResScan graphs time scale and move them so they line up. Your tip is a real help with that.

--papit

Posted: **Tue Apr 10, 2012 5:46 am**

Papit wrote:...
Btw, I find that the graphs in my software for the CMS-50F actually do have a clock time scale along the x axis. All I'll have to do is stretch the pulse-ox graph to match exactly the ResMed ResScan graphs time scale and move them so they line up. Your tip is a real help with that.
--papit

Good - Looking forward to seeing your posted charts.

Posted: **Tue Apr 10, 2012 6:37 am**

Papit, Over time you will probably notice a lag in the time between the 50F and your cpap. My 50F falls behind 1-2 minutes every couple of weeks. I usually notice it when I'm comparing events.

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