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S9 Data Card
#11
(01-28-2014, 07:21 PM)apw5746 Wrote: Can any SD card be used, or does the place that supplied me the machine have to provide a specific one? I'm retired military and can get a 1 GB SD cheaper than my CPAP supplier will charge Medicare, which is a laugh.

Officially, according to the ResMed website:

Which SD cards can be used with S9 therapy devices?
Use only genuine ResMed cards. The only recommended SD (Secure Digital) cards are those supplied by ResMed with the S9 therapy device or available as an accessory. These include Transcend, SanDisk and Silicon Power 1GB and 2GB SD cards.

It is odd that they say to use only ResMed supplied cards -- but then go on to say SanDisk 2GB there...

edit: check the Supplier links on this board -- the card goes for $14.95
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#12
(01-28-2014, 07:21 PM)apw5746 Wrote: Can any SD card be used, or does the place that supplied me the machine have to provide a specific one? I'm retired military and can get a 1 GB SD cheaper than my CPAP supplier will charge Medicare, which is a laugh.

I read a manufacturer's comment that unapproved SD cards don't necessarily have the safety requirements for medical equipment. IIRC, the main problem was that when you touched the back of the card to remove it from the machine, the spacing between the electrical components and your finger was not large enough to meet safety requirement for medical equipment.

The manufacturer only approves SD cards that have been verified to have the required spacing for electrical safety.

I don't have a link or exact quote because I don't remember where I saw it.

I'm personally not that worried about it, but make your own decision.

Under normal conditions, the voltages involved are low, you don't actually touch the wiring, etc. However, the safety standards often require extra margins of safety, and require multiple levels of safety.

Many people use generic SD cards. There doesn't seem to be any particular pattern of problems with generic vs. the manufacturer's cards. There are some failures with any type of card.

It may be hard to find1 or 2 GB SD cards these days. SDHC cards seem to work as well as SD cards. The machine won't use the extra space on the card, unfortunately, but an 8 GB card will work as well as a 1 GB or 2 GB card.

Manufacturers are now producing a new SDXC type of card. I haven't heard of anyone trying an SDXC card.

Try it, and at worst, you're out the cost of a card. Nobody's reported an SD card damaging their machine.

Get the free SleepyHead software here.
Useful links.
Click here for information on the main alternative to CPAP.
If it's midnight and a DME tells you it's dark outside, go and check it yourself.
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#13
I think there 2GB, At least mine is.
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