So what happen did the time automatically adjusted to daylight savings ?
03-12-2012, 03:09 PM
(This post was last modified: 03-12-2012, 05:26 PM by Steven.)
The ResMed S9 AutoSet does NOT automatically change the time to DST.
Using the ResMed Mirage SoftGel Nasal Mask with a chinstrap
I do not use either the Ramp nor the EPR Comfort features
Have been on CPAP since December 1998
This is my 3rd machine
I use the ResMed ResScan Software (Version 3.16)
I couldn't find any clock set on my machine, even with the clinician's manual. However, Sleepy Head software seems to have adjusted for DST. I'm not 100% sure but my wake up time on Sunday in the SleepyHead data is accurate for DST. The nap I took earlier on Saturday showed up as starting an hour later.
My graph start and stop tines are now reading correctly on DST since I reset my machine's clock last night. I believe this is an issue unique to the S9. Also, from what I have been told, the spring forward time adjustment isn't as critical as the fall back adjustment since you're not resetting the clock into an earlier time period that might already contain some data.
We're all family here...you can call me B36 if you'd like!
(03-12-2012, 09:29 PM)b360155 Wrote: I have a ResMed S9 Autoset and use both ResScan and Sleepyhead software. My usage hours were off by an hour as far as start and stop times last night with both software and the clock did not change on my machine. Sleepyhead said I went to sleep last night at 9:41 PM and woke up this morning at 4:02 AM. ResScan said that I went to sleep last night at 9:41 PM and woke up this morning at 4:03 AM. In truth, I went to sleep at 10:41 PM and woke up at 5:03 AM. Interestingly, the summary graphs with both software show the same range of usage and same total usage hours. But on the detailed daily graphs, ResScan has a gap with no data showing up between 2:00 and 3:00 AM. Sleepyhead shows continuous data throughout the evening.
What I've read before in another forum is that with ResMed machines, you have to manually change your machine's clock if you want your graphs to show the correct start and stop times. If that's not important to you, then you can just leave it alone. Your graphs won't reflect the correct DST start and stop times but the data will still be good as far as total usage hours and the various data averages. One important thing that I read though is that if you change the clock time on your machine, there are 2 time "windows" when you should perform the time change otherwise you can mess up some of the machine's data calculations. The first window is one hour after you turn off the machine blower in the morning and 12:00 noon. The second window is after 1:00 PM and before you turn on the machine's blower that afternoon or evening.
I have an S9 Autoset, and use the same software programs. For the 11th (Sat night), ResScan shows I slept a total of 5h14m, from shortly before 1 am to shortly after 6 am. It also shows a gap, with no information on the daily graphs, for the period from (roughly) 2am to 3am. SleepyHead shows on the graphs the same sleep time from around 1am to around 6am, but reflects a total time of 10h28m - exactly twice the actual period. It also does not have any gaps in the data. Late Sat evening I set my S9 clock forward 1 hour, before beginning any therapy (or starting the blower).
My take is that neither program is entirely reliable at least twice a year during DST changes. However, SleepyHead does at least provide the data, while ResScan skips it. Depending on events, that could be important.
Breathing keeps you alive. And PAP helps keep you breathing!