Question about DeVilbiss 5 Liter Oxygen Concentrator with O2 Sensing Device

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Wife falls asleep within minutes of using an oxygen concentrator

Can a non-portable electric oxygen concentrator deliver gas contaminated with carbon monoxide?

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Posted on Jul 13, 2009

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What is Pulse Flow and how is it different from Continuous Flow ?


Pulse and continuous flow (or pulse dose and continuous flow dose) refer to how the oxygen is delivered to the patient. A pulse flow machine delivers oxygen only when the patient inhales and is triggered by inhaling. A continuous flow machine delivers a continuous flow of oxygen. Most continuous flow machines will deliver BOTH pulse and continuous flow. Here is oxygen tank process

pulse-flow-different-from-continuous-1ivx14mgtvlcvk4kwoptd5de-3-0.gif
Portable Oxygen Concentrators How They Work How To Choose Them

Dec 19, 2016 | Cars & Trucks

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Engine fault ligh traveling with a slight jitter


Engine failure lights, idle mixture concentrated, resulting in a mixed gas concentration is usually the cause of the fault before the oxygen sensor, fuel injectors clogged or resistor failure, the engine computer failure, etc., in order to repair the fault sensors and injectors majority, use the diagnostic tool to determine the cause and analyze the necessary data and measurement process, as suggested by the service shop technician repairs and testing, they are more professional. Another reminder recently because of the gasoline engine fault light of reason more, but mostly caused by clogged injector coking dilute mixture, throttle naturally by the carbon. Concentrated mixture of small, generally throttle jitter mostly carbon reason, testing is also very easy to just look at the opening of the can. I hope the answer to help you.

Dec 20, 2013 | Cars & Trucks

2 Answers

What is an 02 sensor


O2 is the chemical designation for oxygen. The engine computer monitors the oxygen content in the exhaust stream to determine if the air-fuel ratio is correct, and uses the information to set the pulse width of the injectors-wider pulse equals more fuel sprayed into cylinders, shorter pulse means less fuel.
The sensor is very reliable (when they are good and not contaminated) in finding the oxygen content. Too much oxygen in the exhaust means the air-fuel ratio is too lean-needs more gas. Too little oxygen means the ratio is too rich, so computer will trim back the injector pulse width.

The system works very well at keeping the theoretically correct "stoichiometric ratio" of 14.7 parts air to 1 part fuel for complete combustion in the cylinders. You will find the computer uses "short term fuel trim" to hover just above and just below the correct ratio of fuel and air-so the oxygen sensor is always switching back and forth between lean and rich signals, constantly. Technicians use this to determine computer and sensor are operating correctly. If lean-rich switching is not occuring at a fast enough rate, it points to a problem . What is called a "lazy o2 sensor" is one that doesn't switch fast enough-one that needs replacing. Oil or carbon deposits can also contaminate the sensors, ruining their effectiveness. And sometimes they just quit working.

Mar 19, 2013 | Cars & Trucks

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What is the purpose of water filters?


The main idea behind nearly all water filters is keeping the contamination out by trapping them within the filter matrix by attracting them to the surface of carbon particles or by screening them out with very small pores.

Aug 23, 2012 | Brita Camping, Backpacking & Hiking

1 Answer

Monitor hp w2207h falls asleep within minutes of rebooting


check the on screen menu on the monitor that you havent got a sleep timer set or aggressive power saving on. Also check on your pc that you dont have it set to turn the monitor off after two minutes

Mar 04, 2011 | HP w2207 Monitor

1 Answer

Is it usual for the concentrator to take as long as 15 minutes to come up to normal oxygen when concentrator has been off for 30 minutes? Does the warning sound and lite also come on them?


That is not normal operation. You need to contact a service or support rep from Fujitsu or contact the company you purchased the unit from.

These should produce oxygen within a few seconds of being turned on and be up to full flow in well under a minute.That is going to vary by model but 15 minutes is too long.

Sep 01, 2010 | Fujitsu (G281065802)

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Other than not passing or producing oxygen flow is it possible for a concentrator to produce carbon monoxides or other gasses? After looking at and reading the information provided on your site it seems...


You are correct. This concentrator is oxygen specific. Therefore it only concentrates the oxygen, not other gasses. Joe

ps please rate my answer as very helpful.. thanks

Mar 29, 2010 | DeVilbiss 5 Liter Oxygen Concentrator with...

2 Answers

I have reddy pro 100 lp gas heater when i run it within afew minuets my eyes nose and throat burn. ia'm using a 20#cylinder the flame is pretty much blue


are you using it in a closed room? you should be using it where there is air circulation. what's happening is the heater is using up oxygen and is producing carbon monoxide which is poisonous and if you are not careful IT WILL KILL YOU!

Oct 25, 2009 | Reddy Heater RLP100 Portable Forced Air...

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Wiring


2002 PCED OBDII-Villager SECTION 1: Description and Operation Catalyst and Exhaust System Overview The catalytic converter and exhaust system work together to control the release of harmful engine exhaust emissions into the atmosphere. The engine exhaust gas consists mainly of nitrogen, carbon dioxide and water vapor. However, it also contains carbon monoxide, oxides of nitrogen, hydrogen, and various unburned hydrocarbons. Carbon monoxide, oxides of nitrogen, and hydrocarbons are major air pollutants, and emission into the atmosphere must be controlled.
The exhaust system consists of an exhaust manifold combined with a pre-catalytic converter, upstream heated oxygen sensor (HO2S11), (located just in front of the pre-catalytic converter), three way catalytic converter (TWC), downstream heated oxygen sensor (HO2S12) (located in front of the TWC), a muffler and an exhaust tailpipe.
Heated Oxygen Sensors The Villager is equipped with both upstream and downstream heated oxygen sensors (HO2S) (Figure 1). The upstream heated oxygen sensor (HO2S11) is used to control engine fuel flow. The sensor detects the concentration of oxygen in the exhaust gas and sends a signal to the powertrain control module (PCM). In a rich condition, the HO2S will output a voltage of 0.6 volts or greater, and in a lean condition a voltage of 0.4 volts or less will be output.
The downstream heated oxygen sensor (HO2S12) is used primarily for monitoring the efficiency of the catalytic converter system. The HO2S12 works in a similar way to the HO2S11 but only indicates to the PCM that the catalyst is functioning properly. In the event that the HO2S11 fails, fuel control will be switched over to the HO2S12 and the malfunction indicator lamp (MIL) will be illuminated. This allows the vehicle to operate with fewer emissions, even with a sensor failure.
Figure 1: Typical Heated Oxygen Sensor (HO2S)

Feb 21, 2009 | 2002 Mercury Villager

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