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Can I ask a Stupid Question?
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pk6301 Offline

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Posts: 31
Joined: Mar 2012

Machine: Respironics System One Model 550
Mask Type: Full face mask
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Humidifier: Respironics
CPAP Pressure: 6-20
CPAP Software: SleepyHead EncoreViewer

Other Comments: cms 50D Plus

Sex: Male
Location: Erie, Pennsylvania

Post: #31
RE: Can I ask a Stupid Question?
(04-17-2012 08:33 PM)greatunclebill Wrote:  
(04-17-2012 07:35 PM)Sleepster Wrote:  
(04-16-2012 05:56 PM)Sleepster Wrote:  I've heard that technicians can set the time and update the firmware with a special cable that connects a laptop to a socket in the botom of the machine. I see no such socket, though! There's a small removeable panel surrounding the slot where the SD card is inserted, but I see no socket behind that panel, either!

I think I discovered something ... found this in the User Manual:

Before operating the device, ensure that the SD card cover is replaced whenever any of the accessories such as the Link Module or Modem are not installed.

My guess is that this "Link Module" plugs in somehow behind that SD card cover, and that is how a tech sets the time on the machine.

here's what i have: my unit came from an on-line dealer in washington (pacific time) in an unopened factory sealed box. i live in alabama (central time). the thing that puzzles me is how the guy in the final inspection station in the factory would know to set my machine to central time when it was going to a dealer in washington. the second question is what happens if i move to a new time zone? if the cpap time is preset to my time zone, the time would be screwed up if i moved to washington, 2 time zones away. well, i download my data to 2 laptops every morning and the time is always correct. so tonite one of my desktop's moved to washington for a couple minutes. i set the computer clock to pacific time, downloaded and installed sleepyhead and set my time in sleepyhead to pacific time. the result was the software thought i was in washington and recorded all data 2 hours earlier as if i was in washington. i still think the internal clock is set to gmt as i've heard. the tech messing with the clock, if he does, could in fact be him just activating the clock.


So what I gather from your post is, that the software is getting the time and date from the laptops the data is loaded to?

Someone once asked me how I adjusted to CPAP so well--I thought for a moment and said I had two choices CPAP or DEATH..The choice was easy..
04-17-2012 08:40 PM
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SuperSleeper Offline

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Joined: Feb 2012

Machine: PR System One REMstar Auto (DS560)
Mask Type: Nasal pillows
Mask Make & Model: ResMed Mirage Swift II
Humidifier: none
CPAP Pressure: 12.5 - 18.5 cmH20 (auto range)
CPAP Software: SleepyHead

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Sex: Male
Location: Illinois, USA

Post: #32
RE: Can I ask a Stupid Question?
(04-17-2012 08:33 PM)pk6301 Wrote:  I would go with the button battery theory, but, would the battery last the 4-5 years before the user would replace the machine through normal wear and tear?.. I have a hard time wrapping my head around that theory

CMOS backup batteries of the type that is shown in the picture do indeed last anywhere between 5-10 years, on average. They are the same exact same type of batteries that are on computer motherboards. The CMOS circuit board chips use very, very little electrical power to keep the clock running.

I had a computer from the early 1990s that still had a perfectly good button battery keeping perfect time when I booted it back up sometime around 2005 or so. I think the clock was off by about 15 minutes or so over that 12 or so year time period.

SuperSleeper
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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.

04-17-2012 09:02 PM
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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: #33
RE: Can I ask a Stupid Question?
(04-17-2012 08:33 PM)greatunclebill Wrote:  the thing that puzzles me is how the guy in the final inspection station in the factory would know to set my machine to central time when it was going to a dealer in washington. the second question is what happens if i move to a new time zone?

So, later in your post you answer your own questions, right?

Quote:i set the computer clock to pacific time, downloaded and installed sleepyhead and set my time in sleepyhead to pacific time. the result was the software thought i was in washington and recorded all data 2 hours earlier as if i was in washington.

I bet that all you need do is set the time zone in SleepyHead. It shouldn't matter what time the laptop is set for.

Quote:i still think the internal clock is set to gmt as i've heard. the tech messing with the clock, if he does, could in fact be him just activating the clock.

I think the clock in the CPAP machine is set to GMT. The tech messes with the clock only if it's drifted off, or is in error for some other reason, and needs to be set correctly to GMT.

The software you use makes the necessary offset between GMT and whatever time zone it thinks you're in. In SleepyHead you tell it what time zone you're in. In Encore you don't, so it uses the time zone you've told Windows you're in?

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.
04-17-2012 09:29 PM
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greatunclebill Offline

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Posts: 549
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Machine: Respironics System one Auto A-Flex
Mask Type: Full face mask
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Sex: Male
Location: L.A. (Lower Alabama)

Post: #34
RE: Can I ask a Stupid Question?
(04-17-2012 09:29 PM)Sleepster Wrote:  I bet that all you need do is set the time zone in SleepyHead. It shouldn't matter what time the laptop is set for.

i learned that you can't re-set the sleepyhead clock after the initial setup or at least i haven't found it. it is still set to pacific time as far as i know. i did however, set the computer clock back to central time and after restarting sleepyhead the start - stop times were ok for central time again. that said, i think sleepyhead takes the time from the computer clock no matter what you set in sleepy head..... unless.... when you reset the computer clock, sleepyhead is set up to change with the computer.
04-17-2012 09:58 PM
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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: #35
RE: Can I ask a Stupid Question?
(04-17-2012 09:58 PM)greatunclebill Wrote:  i learned that you can't re-set the sleepyhead clock after the initial setup or at least i haven't found it.

Then I misunderstood you. I thought you said in your previous post that you had done it as part of your experiment.

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.
04-18-2012 09:46 PM
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Sleepster Offline
Wiki Editor
Moderators

Posts: 4,993
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: #36
RE: Can I ask a Stupid Question?
(04-17-2012 09:58 PM)greatunclebill Wrote:  i learned that you can't re-set the sleepyhead clock after the initial setup or at least i haven't found it.

From the File menu, select Edit Profile.

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.
(This post was last modified: 04-18-2012 09:51 PM by Sleepster.)
04-18-2012 09:50 PM
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greatunclebill Offline

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Posts: 549
Joined: Feb 2012

Machine: Respironics System one Auto A-Flex
Mask Type: Full face mask
Mask Make & Model:
Humidifier: System one
CPAP Pressure: 8-12
CPAP Software: SleepyHead EncoreViewer

Other Comments: quattro fx full face

Sex: Male
Location: L.A. (Lower Alabama)

Post: #37
RE: Can I ask a Stupid Question?
(04-18-2012 09:46 PM)Sleepster Wrote:  
(04-17-2012 09:58 PM)greatunclebill Wrote:  i learned that you can't re-set the sleepyhead clock after the initial setup or at least i haven't found it.

Then I misunderstood you. I thought you said in your previous post that you had done it as part of your experiment.

no, i put sleepyhead on a different computer where i had changed to pacific time. so pacific time was the first time entered in sleepyhead. i didn't know if the time changes back and forth would skew any of my saved data so i went to a different computer entirely.

i see now where to change the clock. thanks.
04-18-2012 09:58 PM
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