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→Important preferences settings
When you select '''Preferences''' off the appropriate menu, a Preferences panel will come up. Regardless of whether you are using a Mac or a Windows computer, the Preferences panel will look the same. The default starting place in the Preferences panel is the '''Import''' pane.
The Import tab of the Preferences panel looks like this:
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* ''Day time split.'' If you work shifts or often sleep past noon, changing this allows all your sleep data for one "night" to appear on the same day instead of being split across two days. '''NOTE: Day time split is NOT available after you import data from an S9 into SleepyHead.''' This choice was intentional since disabling Day time split is needed to make it possible for SleepyHead to get at the S9's summary data.
* ''Create SD card backups during Import''. As the parenthetical note says, making sure this is checked is pretty critical for ResMed S9 and FP Icon users since those machines overwrite the detailed data on the SD card on a regular basis. Checking this will make it easier to reimport the data if it becomes necessary.
The CPAP tab of the Preferences panel looks like this:
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The default is to have this checked and the default value for the Redline is the ResMed value of 24 L/min. This is a NEW feature in SleepyHead 0.9.6. Since our sample patient uses a Philips Respironics System One and she pretty much understands her leaks, she has unchecked the Redline so she doesn't get one in her daily leak graphs. If you want a line for helping you spot Large Leaks and you are NOT using a ResMed S9 machine, the first thing you will need to do is figure out whether your machine's manufacturer has an official definition of "Large Leak" or not. Here is some information on that:
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* ''ResMed S9and Airsense 10''. You should use the default Redline setting of 24 L/min, and and you want to keep the Leaks graph under this line.
* ''Fisher & Paykel Icon''. The Fisher & Paykel Icon reports TOTAL leaks and the Fisher & Paykel Icon definition for Large Leak is a TOTAL leak rate that is above 60 L/min. You should set the Redline at 60 L/min and you want to keep your TOTAL leaks under a Redline drawn at 60 L/min.
* ''Devilbiss IntelliPAP Auto''. The Devilbiss IntelliPAP reports Total leaks and the Devilbiss definition of Large Leak is a TOTAL leak rate that is above 95 L/min. You should set the Redline at 95 L/min and you want to keep your TOTAL leaks under a Redline drawn at 95 L/min.
* ''Philips Respironics System Oneand Dreamstation''. The Philips Respironics machines report TOTAL leak, but Philips Respironics never tells us what the official definition of a Large Leak. SleepyHead 0.9.6 now flags the official Encore Large Leaks as gray bars over the Flow Rate graph. So if you get a lot of large leaks, you can use that data to help you decide where to draw a Large leak line. But until you get some data, here's a staring place to make some guesses about where to draw the Redline that are based on looking at a lot of Encore data from a lot of Philips Respironics users over the years:
** ''Older Series 50 System One machines''. If you are using a pressure setting that is higher than 8-10cm, Encore usually does not flag Large Leaks until the Total Leak rate is up around 90-100 L/min. If you are using very low pressures (4-8cm), Encore may start flagging large leaks at around 60 L/min. So start by selecting a Redline of 90 L/min if you are using pressures above 8 cm and a Redline of 60 L/min if you are using pressures below 8 cm. Adjust if you see Gray Large Leak bars in your actual data.
** ''New Newer Series 60 System One and Dreamstation machines''. If you are using a pressure setting that is higher than 8-10cm, the Encore software usually does not flag Large Leaks until the Total Leak rate is up around 80 L/min. If you are using very low pressures (4-8cm), Encore may start flagging large leaks at around 50 L/min. So start by selecting a Redline of 80 L/min if you are using pressures above 8 cm and a Redline of 50 L/min if you are using pressures below 8 cm. Adjust if you see Gray Large Leak bars in your actual data.
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The Graphs tab of the Preferences panel contains a list of all potential graphs that SleepyHead can draw along with a minimum and maximum value for each graph. The panel looks like this:
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The General tab of the Preferences panel looks like this:
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The Appearance tab of the Preferences panel looks like this:
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Also note: Right now the "Animations & Fancy Stuff" is disabled in SleepyHead 1.0.9.6 0 Beta-2 while JediMark and his collaborators are chasing some bugs. So you don't get anything extra if Animations & Fancy Stuff is turned ON. <br />
= Leaks =
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