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Humidifier not using much water
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Mark Douglas Offline

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Posts: 513
Joined: Apr 2015

Machine: Sys 1 (60) RemStar BiPAP Auto with Bi-Flex 760P Auto Bi-Level (Variabl
Mask Type: Nasal mask
Mask Make & Model: PR Wisp
Humidifier: PR Sys One heated
CPAP Pressure: RiseTime 3 Fxd E-9.0 / I-11.5
CPAP Software: SleepyHead EncoreBasic

Other Comments: Hashimoto's thyroiditis.

Sex: Male
Location: SW Ohio

Post: #1
Question Humidifier not using much water
Humidity set-point at max. of "5" whatever that means. Humidifier heater plate gets hot to touch.

pulled humidifier and checked resistance and one pair = 3.2 ohms = 45 watts at 12VDC sounds about right.

amps/DC to machine tube blocked air flowing thru mask port humidifier off = 0.4
amps/DC to machine tube blocked air flowing thru mask port humidifier "5" = 4.2 for a few seconds then drops back and becomes too unstable to measure with my Fluke 336 (as heater plate heats?)

second pair 9.96k which I would think is humidifier temp sense. correct value unknown.

house quite dry during recent cold weather - 30% rh room temp 62 F.

always use dist water no scale.

so why isn't it using much water?

I use my PAP machine nightly and I feel great!
Updated: Philips Respironics System One (60 Series)
RemStar BiPAP Auto with Bi-FlexModel 760P -
Rise Time x3 Fixed Bi-Level EPAP 9.0 IPAP 11.5 (cmH2O)
01-14-2016 05:06 PM
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justMongo Offline

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Posts: 3,847
Joined: Sep 2013

Machine: ResMed VPAP Auto (S9)
Mask Type: Full face mask
Mask Make & Model: ResMed Mirage Quattro
Humidifier: ResMed H5i
CPAP Pressure: 18 IPAPmax - 11 EPAPmin, PS=5
CPAP Software: Other Software

Other Comments: μολὼν λαβέ

Sex: Male
Location: Калифорния

Post: #2
RE: Humidifier not using much water
(01-14-2016 05:06 PM)Mark Douglas Wrote:  humidifier "5" = 4.2 for a few seconds then drops back and becomes too unstable to measure with my Fluke 336 (as heater plate heats?)

The Fluke 336 is a clamp-on Ammeter with a Hall Effect Sensor. It can measure AC and DC Amperes. (even non-sinusoidal AC)

The humidifier element is pulse modulated, switched DC. As the element heats, the pulse becomes narrower. I think your Ammeter has difficulty with fast rise time, short pulse, switched, DC.

All your measurements sound reasonable. I favor a conclusion that the humidifier is working as it should.

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.
01-14-2016 06:11 PM
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Terry Offline

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Posts: 553
Joined: May 2014

Machine: Philips Respironics RemStar Auto with A-Flex (560P)
Mask Type: Nasal pillows
Mask Make & Model: P/R Nuance & Pap Cap
Humidifier: Integrated
CPAP Pressure: Auto
CPAP Software: SleepyHead

Other Comments:

Sex: Male
Location:

Post: #3
RE: Humidifier not using much water
Is it actually too dry, or just not using much water?

On the other PR machines you can switch the humidifier mode from the new "smarter" mode to the old mode, which might let you get the humidity up a little more, but it also might rainout.

Not sure if your model has it or not.
(This post was last modified: 01-14-2016 06:28 PM by Terry.)
01-14-2016 06:26 PM
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Mark Douglas Offline

Advisory Members

Posts: 513
Joined: Apr 2015

Machine: Sys 1 (60) RemStar BiPAP Auto with Bi-Flex 760P Auto Bi-Level (Variabl
Mask Type: Nasal mask
Mask Make & Model: PR Wisp
Humidifier: PR Sys One heated
CPAP Pressure: RiseTime 3 Fxd E-9.0 / I-11.5
CPAP Software: SleepyHead EncoreBasic

Other Comments: Hashimoto's thyroiditis.

Sex: Male
Location: SW Ohio

Post: #4
RE: Humidifier not using much water
(01-14-2016 06:26 PM)Terry Wrote:  Is it actually too dry, or just not using much water?

On the other PR machines you can switch the humidifier mode from the new "smarter" mode to the old mode, which might let you get the humidity up a little more, but it also might rainout.

Not sure if your model has it or not.

sinuses very dry. will investigate possible other modes. Thanks

I use my PAP machine nightly and I feel great!
Updated: Philips Respironics System One (60 Series)
RemStar BiPAP Auto with Bi-FlexModel 760P -
Rise Time x3 Fixed Bi-Level EPAP 9.0 IPAP 11.5 (cmH2O)
01-14-2016 07:05 PM
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Mark Douglas Offline

Advisory Members

Posts: 513
Joined: Apr 2015

Machine: Sys 1 (60) RemStar BiPAP Auto with Bi-Flex 760P Auto Bi-Level (Variabl
Mask Type: Nasal mask
Mask Make & Model: PR Wisp
Humidifier: PR Sys One heated
CPAP Pressure: RiseTime 3 Fxd E-9.0 / I-11.5
CPAP Software: SleepyHead EncoreBasic

Other Comments: Hashimoto's thyroiditis.

Sex: Male
Location: SW Ohio

Post: #5
RE: Humidifier not using much water
(01-14-2016 06:11 PM)justMongo Wrote:  
(01-14-2016 05:06 PM)Mark Douglas Wrote:  humidifier "5" = 4.2 for a few seconds then drops back and becomes too unstable to measure with my Fluke 336 (as heater plate heats?)

The Fluke 336 is a clamp-on Ammeter with a Hall Effect Sensor. It can measure AC and DC Amperes. (even non-sinusoidal AC)

The humidifier element is pulse modulated, switched DC. As the element heats, the pulse becomes narrower. I think your Ammeter has difficulty with fast rise time, short pulse, switched, DC.

All your measurements sound reasonable. I favor a conclusion that the humidifier is working as it should.

I'm inclined to agree with your conclusion yet it has used more water in the past. Perhaps cycling the connector will prove to be helpful. In any event tomorrow will tell.
Will be digging out the Simpson 260 tomorrow. Analog still has its uses as I often tell the youngsters.

I use my PAP machine nightly and I feel great!
Updated: Philips Respironics System One (60 Series)
RemStar BiPAP Auto with Bi-FlexModel 760P -
Rise Time x3 Fixed Bi-Level EPAP 9.0 IPAP 11.5 (cmH2O)
01-14-2016 07:14 PM
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justMongo Offline

Monitors

Posts: 3,847
Joined: Sep 2013

Machine: ResMed VPAP Auto (S9)
Mask Type: Full face mask
Mask Make & Model: ResMed Mirage Quattro
Humidifier: ResMed H5i
CPAP Pressure: 18 IPAPmax - 11 EPAPmin, PS=5
CPAP Software: Other Software

Other Comments: μολὼν λαβέ

Sex: Male
Location: Калифорния

Post: #6
RE: Humidifier not using much water
(01-14-2016 07:14 PM)Mark Douglas Wrote:  Will be digging out the Simpson 260 tomorrow. Analog still has its uses as I often tell the youngsters.

I let go of my Simpson 260 about 25 years ago. Now I'm looking on eBay for a decent one.

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.
01-14-2016 08:47 PM
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WakeUpTime Offline

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Posts: 156
Joined: Jan 2014

Machine: PR System One BiPAP S60 Auto 760
Mask Type: Nasal pillows
Mask Make & Model: P10 pillows
Humidifier: PR S1 w Heated Tube+Hose
CPAP Pressure: Auto / Inhale 11-12.5 / Exh 9
CPAP Software: SleepyHead EncoreBasic

Other Comments:

Sex: Male
Location:

Post: #7
RE: Humidifier not using much water
I have the same PR 760 and go through an entire water chamber each night. I assume you have the heated hose of course. I also use a hose cover too. If you're plate is hot, it should be functional. It never gets really hot, but that little bit of heat seems to be enough to keep the water vapor flowing all night. We have similar pressure settings too.

There's a sensor in the heated hose, isn't there? It detects humidity levels, I think. Could yours be faulty and your machine adjusts it down or off at periods throughout the night? I'm sure I'm wrong, but it's just a thought. It's probably a setting thing.

Sleep Apnea has given me a terrible memory. Please forgive me if I've repeated myself.
(This post was last modified: 01-15-2016 04:55 PM by WakeUpTime.)
01-15-2016 04:54 PM
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Mark Douglas Offline

Advisory Members

Posts: 513
Joined: Apr 2015

Machine: Sys 1 (60) RemStar BiPAP Auto with Bi-Flex 760P Auto Bi-Level (Variabl
Mask Type: Nasal mask
Mask Make & Model: PR Wisp
Humidifier: PR Sys One heated
CPAP Pressure: RiseTime 3 Fxd E-9.0 / I-11.5
CPAP Software: SleepyHead EncoreBasic

Other Comments: Hashimoto's thyroiditis.

Sex: Male
Location: SW Ohio

Post: #8
RE: Humidifier not using much water
Not heated hose.
Machine too smart for my own good like DW's Chevy Volt.
Ultimately ID-10-T error was resolved by initiating RTFM process.

I use my PAP machine nightly and I feel great!
Updated: Philips Respironics System One (60 Series)
RemStar BiPAP Auto with Bi-FlexModel 760P -
Rise Time x3 Fixed Bi-Level EPAP 9.0 IPAP 11.5 (cmH2O)
01-15-2016 05:16 PM
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Ghost1958 Offline

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Posts: 957
Joined: Aug 2014

Machine: PRS1 Series Sixty Auto Aflex
Mask Type: Nasal mask
Mask Make & Model: F&P Eson
Humidifier: PRS1 with Heated Hose
CPAP Pressure: 10.5 min 16 max
CPAP Software: SleepyHead EncoreBasic

Other Comments: Moderate to Severe SA Obstructive. Rapid O2 desat off the machine.

Sex: Male
Location: KY

Post: #9
RE: Humidifier not using much water
Get the heated hose for your machine. Worth every penny
01-15-2016 08:19 PM
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worn_out_in_lebanon Offline

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Posts: 270
Joined: Jan 2015

Machine: Resmed A10 Autoset
Mask Type: Full face mask
Mask Make & Model: F20 (newest Resmed ffm)
Humidifier: Included, ClimateLine tubing
CPAP Pressure: 13-15, EPR:0
CPAP Software: SleepyHead

Other Comments: I.T. Project Manager. Started CPAP therapy March 16, 2015. Untreated AHI 39.

Sex: Male
Location: TN

Post: #10
RE: Humidifier not using much water
I have a different machine. The humidity goes to 8.

On a 5 setting, summer season (don't remember the indoor humidity), it uses about half a tank.

Now I have it set to 7, indoor humidity is about 30% with a humidifier running non-stop, and I go nearly completely through a full tank in 8 hours. A little less if my leak rate was low.
01-19-2016 05:56 PM
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