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[Equipment] 12VDC adapter
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Sleepster Offline
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Machine: ResMed AirCurve10 VAuto
Mask Type: Full face mask
Mask Make & Model: F&P Simplus
Humidifier: HumidAir and SlimLine Hose
CPAP Pressure: MaxI 13.6 | MinE 5.2 | PS 4.4
CPAP Software: ResScan SleepyHead

Other Comments: Diagnosed Nov 2011. Conquered aerophagia.

Sex: Male
Location: Houston, Texas

Post: #11
RE: 12VDC adapter
(10-05-2012 10:16 PM)archangle Wrote:  It's 24VDC. Look on the label for the power brick.

There's a third wire, though.

Consensus seems to be that the third wire tells the blower unit which power supply it's attached to, so it knows whether it can power the humidifier and/or heated hose.

Speculation is that it may be "interlocked" to keep you from using a non-ResMed power supply, but nobody's come up with any details.

Has anyone put a voltmeter on it to confirm that two of the wires are positive 12 V and the third wire is neutral?

Sleepster
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INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
10-06-2012 12:16 PM
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archangle Offline
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Posts: 3,159
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Machine: ResMed S9 AutoSet
Mask Type: Nasal pillows
Mask Make & Model: ResMed Swift FX
Humidifier: ResMed S9 H5i
CPAP Pressure: 16-20
CPAP Software: ResScan SleepyHead EncoreBasic

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Post: #12
RE: 12VDC adapter
(10-06-2012 12:16 PM)Sleepster Wrote:  Has anyone put a voltmeter on it to confirm that two of the wires are positive 12 V and the third wire is neutral?

Do you mean 24V?

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10-06-2012 07:21 PM
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Sleepster Offline
Wiki Editor
Moderators

Posts: 4,994
Joined: Feb 2012

Machine: ResMed AirCurve10 VAuto
Mask Type: Full face mask
Mask Make & Model: F&P Simplus
Humidifier: HumidAir and SlimLine Hose
CPAP Pressure: MaxI 13.6 | MinE 5.2 | PS 4.4
CPAP Software: ResScan SleepyHead

Other Comments: Diagnosed Nov 2011. Conquered aerophagia.

Sex: Male
Location: Houston, Texas

Post: #13
RE: 12VDC adapter
(10-06-2012 07:21 PM)archangle Wrote:  
(10-06-2012 12:16 PM)Sleepster Wrote:  Has anyone put a voltmeter on it to confirm that two of the wires are positive 12 V and the third wire is neutral?
Do you mean 24V?

Yes. 24 V.

Sleepster
Apnea Board Moderator
www.ApneaBoard.com


INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
10-06-2012 09:27 PM
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oldteddybear Offline

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Posts: 88
Joined: Feb 2012

Machine: Resmed Elite S9
Mask Type: Nasal mask
Mask Make & Model: Pilairo (for now)
Humidifier: S9 H5i
CPAP Pressure: 14
CPAP Software: ResScan SleepyHead

Other Comments: Hosehead since Jan 2012

Sex: Male
Location: Ontario, Canada

Post: #14
RE: 12VDC adapter
(10-05-2012 06:41 PM)Bernie Wrote:  I'm aware of the 12V/120V inverter method, but wanted to avoid the extra losses in the conversion process. Actually, the main thing I wanted to know is the actual output voltage under load of the larger ResMed power brick. I guess I'll just have to measure it myself.
Thanks for the reply.

I have one of the 12v S9 power bricks. It comes with an accessory adapter that will allow you to clip onto a car battery. I will look at it to see if there are any extra details on it.
10-06-2012 10:03 PM
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