


With SleepyHead you will be able to see what is happening, and when the events occur. And, if you set the minimum pressure at 4 cm, the machine will start there, and possibly stay there, or lower than 5 cm. It can always be changed later of course. To prevent central apnea events it would seem prudent to limit maximum pressure to 5 cm. So my logic is that you do not need more than 5 cm pressure based on what your machine is now doing. Generally that means too much pressure, although the effective EPR of 1 cm may be contributing to the CA as well. This setup seems to be producing too many CA events, and no OA events. That means your inhale pressure (IPAP) is 5 cm, and exhale is 4 cm (EPAP, the EPR of 2 cannot reduce pressure below 4 cm).
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My understanding is that your fixed pressure CPAP is currently set a 5 cm and EPR is on full time at 2 cm. That is about all I can think of, but will post again if I come up with anything else. When you put the SD card in the machine, do you get the gray colored message saying it is preparing the card? Any kind of error message? If you have any other SD card around to try, especially a smaller one, it may be worth a try. If it is a production date problem, then perhaps they would have an older production date machine of the same model they could exchange yours for. If you can't figure out what is wrong, perhaps time to go back to the supplier to complain. It would be an even dirtier trick to disable the data collection. It is a bit of a dirty trick to not supply the ResMed SD card as every machine to my knowledge comes with a 4 GB ResMed branded SDHC card, so someone is taking the card out and not giving it to you. For example each machine seems to be set up to use a specific wireless provider, and if you buy a machine in the US the wireless may not work in Canada. I see a comm port right below the SD card slot, and I suspect there must be a way to connect the machine directly to a computer or setup machine to do certain changes. I know there is some setup that can be done to the machine beyond what can be done with the Clinical Provider Menu. I have a vague recollection of someone posting a rumor that there was going to be some way to disable data collection after a certain manufacture date. Is it the AutoSet model? However, I think they all collect data, except perhaps for the basic basic CPAP model.
