Need Advice on ResMed & Humidifier and brief power outages

Hi,
I am new to the forum, and I have spent a few days trying to solve my problem with no success. I have read most of the previous posts, but am still a bit confused.
I live in an apartment complex that gets frequent, but brief power outages (1-5 min in duration). Although this is not a big deal, every time this happens and my CPAP machine (REDMED S8 with 3i Humidaire, and pressure of 10) turns off I wake up and have trouble falling back to sleep.
I usually have my humidifier on thru the night.
1) Is there a way I can use a UPS, like computers use, so I can sleep through the brief power outages, or is it much more complicated than that?
2) Is there a way to have the cpap continue to run without getting up to plug the machine into a battery backup system, or to turn off or remove the humidifier from the device?
3) I wouldn't mind getting a pure sine wave inverter and a marine battery, but is there a way to use that system as a UPS, rather than a portable power system?

Thanks for your input
Ken

you seen this collection of threads?

viewtopic.php?t=9682

also check resmed site on what is needed if you haven't already done so

Thank you for the link. I have been through nearly all of them, and have either missed the answer to my question, or it is not there. Most of the posts talk about UPS's and do not mention a humidifier, or if they do they talk about a battery and inverter, but they do not talk about a way to set it up at a UPS.
I am going to continue looking.
Thanks
Ken

herbertk12 wrote:2) Is there a way to have the cpap continue to run without getting up to plug the machine into a battery backup system, or to turn off or remove the humidifier from the device?

I'm not sure I understand your concerns.

You plug the UPS into the wall, and plug *any* electrical device into the UPS. If wall power goes out, the UPS supplies power with no interruptions. When the wall power comes back on, the UPS switches back to it automatically. No human intervention is required.

The UPS holds a set amount of power, depending on the model. It will be able to carry a light load for a longer time, or a heavier load for a shorter period of time. If you need more juice, then you get a bigger (more expensive) UPS that holds more power.

I don't understand why you would be getting up to plug it in or having to turn the humidifier on or off.

Jim

If it is that simple then that is great!! I have read that the 3i Humidifier needs a pure sine wave power source or it will burn out. Most UPS devices that computers use produce a modified sine wave, which resmed says is bad. Is a modified sine wave only bad for prolong periods of time? Will using a standard UPS with modified sine wave briefly be safe?
ken

I'm not aware of the effects on CPAP machines based on the input sine waves.

Something you'll see is that most electrical devices have a transformer built into the end of the cable (often called a "brick"), somewhere along the cable length, or internally (like a computer). That transformer is marked with the input requirements. Many times, the transformer specifies that it will work with input from 110-240 volts and 50-60 hertz. It is also marked with the DC power output. As you can imagine, it is quite forgiving to be able to tolerate a range of voltages and types of power that are available in many places in the world.

Anyway, I don't know of many people who check to see exactly how "pure" the power is in their house. At the same time, I'm sure that lawyers have a hand in writing user manuals.

Jim

You may want to look into a voltage regulator/conditioner.

http://www.amazon.com/APC-LE1200-1200VA ... 647&sr=8-1

This one is $50. You may want to check with the manufacturer to see if they promise a true sine.

You could also try complaining to the building management and/or power company until they fix the problem. Your televisions and computers could be damaged by the same thing and they cost a lot more than the humidifier.

herbertk12 wrote:If it is that simple then that is great!! I have read that the 3i Humidifier needs a pure sine wave power source or it will burn out. Most UPS devices that computers use produce a modified sine wave, which resmed says is bad. Is a modified sine wave only bad for prolong periods of time? Will using a standard UPS with modified sine wave briefly be safe?
ken

Lack of pure sine wave power will cause the humidifier to burn out.

There are two solutions to this issue:

1) Don't use the humidifier.

-or-

2) Purchase a UPS system that can provide pure sine wave power. These systems do exist but expect to pay more for the pure sine wave capability.

If you are like me... going without the humdifier is not a solution. So given your circumstances and if it was me I would go for solution #2.