Off switch for PR System One?

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desiderata
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Off switch for PR System One?

Post by desiderata » Tue Oct 17, 2017 7:15 pm

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Last edited by desiderata on Sat Oct 15, 2022 7:22 am, edited 1 time in total.

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Pugsy
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Re: Off switch for PR System One?

Post by Pugsy » Tue Oct 17, 2017 7:22 pm

Which model System One machine...50 series or 60 series?
Are you talking about the blower staying on or the display being lit up?
Or are you talking about totally turning the machine off so it has zero power coming to it?

There is a setting in the setup menu to turn off the back light on the 60 series but not on the 50 series.

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desiderata
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Re: Off switch for PR System One?

Post by desiderata » Thu Oct 19, 2017 6:08 pm

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Last edited by desiderata on Sat Oct 15, 2022 7:22 am, edited 1 time in total.

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Pugsy
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Re: Off switch for PR System One?

Post by Pugsy » Thu Oct 19, 2017 6:13 pm

The 50 series didn't have Bluetooth so it must be a 60 series.

I never totally unplugged my 60 series machine.
Once I turn it off (push the on/off button to stop the blower) and it goes sort of to standby mode it uses very little electricity and the lights are not lit up on the display.

There is a setting available in the clinical setup so that a person can turn off the back light display and if you turn it off once you start the machine after a very short while the display lights go off.
Easily turned by on again if needed...just turn the knob.

The manual can be requested from here and explains all these features.
http://www.apneaboard.com/adjust-cpap-p ... tup-manual

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desiderata
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Re: Off switch for PR System One?

Post by desiderata » Thu Oct 19, 2017 6:24 pm

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Last edited by desiderata on Sat Oct 15, 2022 7:21 am, edited 1 time in total.

#1Guest

Re: Off switch for PR System One?

Post by #1Guest » Thu Oct 19, 2017 8:45 pm

It just needs a momentary press on the switch if it is working right. The LCD display will stay visible but is not illuminated. Some people want to unplug it for some reason but as mentioned it draws very little power and removing power from it while it is ON not only messes with the data but then it may turn back on when power is restored.

rick blaine
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Re: Off switch for PR System One?

Post by rick blaine » Fri Oct 20, 2017 5:40 am

With the PR System One 560, "holding down the (big) button for a few seconds" in the hope that that will turn it off is not a good idea.

Holding down the big button for seven seconds (on its own, and NOT while simultaneously holding down any other button) will turn the humidifier pre-heating on.

PR give this option for those who find that the moisture from an otherwise 'plain start' is too cold for them, and who prefer that the moisture is warmer from the get-go - from the start of blower running and therapy being delivered.

(AFAIK, it takes about five minutes to pre-heat. But YMMV.)

The thing is: if you've held down the big button for those seven seconds AND turned the heating plate on, the only way - AFAIK - to turn the plate OFF is to start the machine, and then stop it.

There may be a time-based safety cut-off which turns the heating off if you don't start using the machine within, say, 30 minutes. I have no information on that.

I echo what the others say about the machine not drawing any current when it's just sitting there. The tiny amount to run the internal clock and - if you've had the machine unplugged for a day or so - to top up the battery that runs the internal clock.

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CapnLoki
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Re: Off switch for PR System One?

Post by CapnLoki » Fri Oct 20, 2017 12:43 pm

rick blaine wrote:With the PR System One 560, "holding down the (big) button for a few seconds" in the hope that that will turn it off is not a good idea.

Holding down the big button for seven seconds (on its own, and NOT while simultaneously holding down any other button) will turn the humidifier pre-heating on.

PR give this option for those who find that the moisture from an otherwise 'plain start' is too cold for them, and who prefer that the moisture is warmer from the get-go - from the start of blower running and therapy being delivered.

(AFAIK, it takes about five minutes to pre-heat. But YMMV.)

The thing is: if you've held down the big button for those seven seconds AND turned the heating plate on, the only way - AFAIK - to turn the plate OFF is to start the machine, and then stop it.

There may be a time-based safety cut-off which turns the heating off if you don't start using the machine within, say, 30 minutes. I have no information on that.

I echo what the others say about the machine not drawing any current when it's just sitting there. The tiny amount to run the internal clock and - if you've had the machine unplugged for a day or so - to top up the battery that runs the internal clock.
I agree that leaving a 560 powered for an extended period is not a problem - mine goes for months without being unplugged. I measured the load at 0.07 Amp, which is about 1 amp-hour for the non-sleeping day. Not a lot if you're on the grid, but noticeable if you're on a small battery.

And, as you say, holding the button down for 5 seconds starts the "pre-heat" cycle. However, the pre-heat runs for 30 minutes and then goes off. I expected it to run full tilt for that period - the water has to be heated roughly 100 degrees which, doing the BTU calculation, will consume 1.75 Amp-hours which is 30 minutes at 3.5 amps - near the full power. But to test the theory, I ran the pre-heat off my battery with a meter in line.

The first problem was that I haven't charged the battery in about 6 months (mea culpa!). It was on the edge, so it would start the heater, and then shut off! So I charged for an hour or so before testing. Then I started and held to button to start the pre-heat. It ran for about 30 minutes, with the load mostly bouncing between 1.5 and 2.0 amps, with a max of 3.5 amps. The total was 1.2 Amp-hours, or 13.5 Watt-hours. Unfortunately, I wasn't able to measure the temperature gain of the water, but I'm guessing it was about 120 degrees. Maybe I run this test again after the battery is topped off to see if there's a difference, and to measure the temp rise. It's High School Physics Lab all over again!

Also, I'm pretty sure the internal battery is a non-rechargable lithium cell, similar to the clock battery in computers. Certainly my backup 560 goes extended periods without be powered up and the clock continues to run. And in the summer my primary goes 2-3 months unplugged without a problem.

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