DC to AC Pure Sine Wave Power Inverter for Resmed S8 Machines
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Check out the newer model hereDC to AC Pure Sine Wave Power Inverter Second Gen
Resmed S8 DC-AC PSW Power Inverter Overview
An inverter converts DC battery power to AC wall power. ResMed humidifiers can become damaged if the battery power is not inverted into a clean AC power source. Most inverters do not generate a pure signal from a DC battery and the Humidaire heated humidifiers are susceptible to power spikes. The 'Pure Sine' refers to a signal wave with controlled peaks and dips. Power signals that rise or fall erratically are dangerous to electronics.
This Product Includes...
- DC Input Voltage 12V (10-16.2V)
- Output Power 300W
- AC Output Voltage 120VAC
- Output Frequency 60 Hz +/- 0.5 Hz
- Output Wave Form PURE SINE WAVE
- Efficiency (Full load) 90%
- Maximum Efficiency (1/3 load) 95%
- Regulation +/- 6%
- THD (max) 4%
- No load current <0.7A
- Battery low alarm 10~10.4VDC
- Battery low shutdown DC 9.7~10VDC
- Operation environment temperature 32F - 104F
- High battery shutdown range 17V DC
- Heat dissipationTHERMAL FAN
- Dimensions (LxWxH) 205x242x80 mm
- Net weight 2.02 Kg
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You will not need this equipment if you are just powering the ResMed S8 machine. Use the 400 Watt DC to AC Power Inverter or similarly basic inverter with a minimum of 150 Watts continuous when not connecting the Humidiaire heated humidifier.
The Pure Sine Wave Inverter will not work with the CPAP.com Battery Pack. Please visit our Power and Batteries section to select an alternative DC battery source. If you want to use a battery and need a means of charging the battery while camping outdoors, use the 400 Watt DC to AC Power Inverter.
The Pure Sine Wave Inverter is not recommended for most machines. Equipment like the Respironics M series and ZZz-PAP machines will use the simpler 400 Watt DC to AC Power Inverter .
We include information about the power needs and capacities on the CPAP.com pages our products. Please see the "POWER" tab on any machine product page for this information. You can also see a summary of the voltage range and whether it is DC capable on our Compare Charts.
Here is a video explaining differences in power cords and power supplies of various CPAP machines:
Inverters do require a lot of power. If you need to use an inverter to run your machine on battery power, the inverter will probably take about half the life off the battery.
To determine if your CPAP will operate without an inverter, look for a DC outlet on the machine, either at the back or on the side, with a single opening directly in the center. It should be labeled "DC POWER" or similar term. You can also review our Compare Charts to see if your machine has a optional DC cable option.
Here is a video describing different DC cable and battery options for various machines:
All the models CPAP.com sell contain power converters that enable the machine to operate on any AC current from 100 to 240 volts without any adjustment.
All machines can connect to DC power. Some machines are configured to operate on DC Power and have a DC power outlet. Other machines require AC power and will need an Inverter that turns DC power to AC power.
Having the proper equipment is the biggest key to successfully operating the machine from a battery. For example, if your machine does have a DC outlet and you want to run your machine from a marine battery, be sure to get the correct DC cable for the machine, as well as an adapter cable with alligator clips that fits over the cigarette lighter plug.
CPAP.com sells complete battery kits with everything you need for many machines including the correct cables for those machines and batteries. If you have questions about the specific power needs of your machine, review the 'Power' tab found on the machine's product page, or give us a call at 1-800-356-5221.
There are small, portable battery packs that will operate a CPAP set at 10cm for at least one night, or about eight hours. CPAP.com sells full Battery Kits that come with everything needed to run your machine off battery power including the correct cables needed for your machine and a battery. You can find the battery kit for your machine Here. On each battery kit page, you can input your machine and pressure setting to see an estimate battery life for your machine.
Some machines have batteries created to be used specifically with them only. Here are some of the machines we carry with integrated or specialized battery options:
Transcend EZEX miniCPAP™ Machine
Z1 Travel CPAP Machine
Transcend Auto miniCPAP™ Machine with EZEX
Z1 Auto Travel CPAP Machine
CPAP.com sells Battery Packs to accompany your machine if an integrated battery is not available. Visit CPAPtalk for more advice specific to your needs, or view this past thread on the topic here.
I don't have an oscilloscope, so I didn't test its claim to produce a "pure sine wave" but this product powered my CPAP device and heated humidifier for two nights while camping. more...
3 people found this helpful.
I cannot wait to go to the back country now that I have a way to power my newly purchased battery pack. Traveling will be so much nicer now that I have this option. more...
1 person found this helpful.
The machine works great however the 12V ability via the RV we have didn't produce enough juice.
1 person found this helpful.
Worked excellent on a five day camping trip in a pop up camper using a 12 volt deep cycle battery. Did not use the humidifier this time. more...
3 people found this helpful.
The inverter was what I was looking. Thanks