Help for the CMS50E oximeter

carbonman wrote:

carbonman wrote:

jules wrote:It's a POS

...uh-ho....is this another scientific term??
Just curious.

carbonman wrote:

apnez wrote:It is FDA approved.

I know this isn't a scientific term.

As I think about this, if my understanding of POS is correct,
I have heard those two acronyms used together....
sometimes the former to describe the latter.

I could be mistaken though.....just thinking out loud.

Dude, the thin air in the mountains must be getting to you.

elg5cats wrote:

Anyway, using military time, set the recording time to the time you wish to begin your recording........like 2300 for 11:00pm. There's no end time to recording unless your battery goes dead or you sleep more than 24 hours (my dream nap!!!!) I charge mine each night by computer......seems to charge better via computer than outlet.

elg5cats.

Wait, the time' i am setting is not the number of hours to record, but the time it starts recording? there's a clock in the thing? Damn, I better read the manual.

I found no clock! And there should be one!

The time setting refers only to the start time of the recording.

[quote] better read the manual

Not sure you will find the manual that helpful. It's not translated to English very well. I found trial and error to be a better learning experience.
The little gadget does have an interal clock........don't forget the alarm option on the menu......if you turn on the alarm, it'll even wake you up if you toss it of your finger.

| elg5cats

elg5cats wrote:

better read the manual
Not sure you will find the manual that helpful. It's not translated to English very well. I found trial and error to be a better learning experience.
The little gadget does have an interal clock........don't forget the alarm option on the menu......if you turn on the alarm, it'll even wake you up if you toss it of your finger.
| elg5cats

Yes, that manual's native language doesn't seem to be English

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elg5cats

[quote="elader"Wait, the time' i am setting is not the number of hours to record, but the time it starts recording? there's a clock in the thing? Damn, I better read the manual.[/quote]

It does not have a clock, but a time keeper. So you set the current time when you start, and it keeps track of elpased time, and will show that in the graphs. When you look at the data, you move the graph starting time to line up with the cpap data for that time; then you can correlate the spo2 reading with the cpap events. Yes, they should have put a clock in there to avoid this hassle of setting the start time every time we use it.

elader wrote:Those of you with this thing - you set recording for 10 hours, sleep with it, then switch to 'upload' and connect to the computer?

its awfully cute. If i hold my breath, I can't seem to make the spO2 drop....

Your summary is essentially correct. Remember that you have only one session of data. I have accidentally restarted recording which wipes the night's data. You can play with it and do a couple of 10 minute sessions.

I have been able to get the ox level a little under 90% if I hold by breath. Any more than that and I HAVE to breathe.

I have had good luck with mine, no problems. The clock does drift though, not very accurate.

OK, I taped it to my finger last night. Uploading the data this morning was uh... weird and exciting. Seems the driver that windows installed screwed up my mouse a bit. But it worked in the end. Saw some heart rates flagged by the software, but typically these were drops in heart rate by a few bpm. It saw one true desat from 97% to 91% - still not below the 90% threshold. It says it was 14 seconds, which is the typical length of one of my apneas that the M series logs. I will look to see if this matches an event that my machine recorded. As my AI is usually 2-4, this seems rather a low number of events to have logged over a night.

I did (for fun) take off the mask at 6AM and doze for 30 minutes without cpap. The heart and SPO2 were noticeably much more variable (but 02 still not below 90%) - I don't know if its due to me being semi awake, but I am not going to spend a night without cpap just to try it out

Elader wrote:
It saw one true desat from 97% to 91% - still not below the 90% threshold. It says it was 14 seconds, which is the typical length of one of my apneas that the M series logs.

Elader,
How do you determine the length of your apneas from the M Series data? I see in the chart on p. 12, that it gives the "average time in apnea" (I assume that's per night). Right? I'm not very good in math . . . how do you figure out the length of your apneas from that?

Thanks, Joy

sorry, the length of the apneas comes from aftermarket software. I forgot what it's called. But it shows length of time in apnea.

After reading some of the posts here, I feel pretty lucky. My CMS-50E works like a charm and I haven't had a single problem with it. My readings tend to hit lows of 83-88% in the SPO2 category, but I seldom spend much time there. When I compare it to my ResScan data, I can usually line them up pretty closely. Most nights I am 90% or above for the majority of the night.

The only problem I had with the unit was not a malfunction of the device but rather the crappy instructions that came with it. It took me two nights to figure out I had to enter the 24 hour time in the recording mode and not how long I wanted it to run.

Device and software works as designed and promised for me.

elader wrote: Dude, the thin air in the mountains must be getting to you.

I'm blaming it on all the oxygen I get at night.
It's this cpap....ah...stuff.
My brain is coming back to life....after who knows how many years...

...and...and....these thoughts, dreams, schemes and weird.....ah stuff, just flows out...
ah...so to speak.
I don't seem to be able to control it.

My CMS 50-E worked ok for quite awhile.

Then, somehow the back broke and came off.

There are some tiny plastic gizmatchies that hold it on and one of those broke.

I didn't remember doing it but I must have rolled over on it or something. Although you would expect it to just sink into the Tempurpedic mattress.

But I just put a rubber band around it and it works just as well as it ever did.

But I did upgrade to the F model that you wear like a watch.

For Sale: VCR (made in China) damned thing keeps flashing 12:00 and can't seem to record an entire TV show when I press the "Qwik REC" button only once!

My CMSS50-F oximeter has the same technology and I understand uses the same software but is the wristwatch type versus the "clothespin" model. It works seamlessly and provides me with reporting as detailed as minute by minute using the internal clock so I know exactly how I respond at 4:30 AM when I roll over on my back versus 11:15 on my side.

It makes me wonder how many of our members are driving around with the clocks in their vehicles out by an hour because of failure to adjust for daylight savings time.