Medical oxygen concentrator usage and common troubleshooting methods

The oxygen concentrator should be used for at least 30 minutes each time it is turned on. Frequent use for a short period of time can cause the molecular sieve to become damp, as the oxygen source is air, which has a certain degree of humidity. 

Usage details: 1. Filter screen replacement after 300 hours; 

2. Use pure water for the humidification cup, and do not exceed the highest water level when adding water; Water only serves to humidify oxygen, not to produce oxygen through water. Many users have this misconception that adding more is better; 

3. There is a large cable tie at the bottom of the machine that needs to be cut off during use, otherwise the noise will be loud; 

4. The back of the machine has a heat dissipation port and an air intake port. Do not lean against the wall, wardrobe, or cover the back. Poor heat dissipation can cause the compressor to sound a high temperature alarm and stop working, resulting in E1 or E3; 

5. Use 1L for atomization. If E2 appears when using 1L for flow alarm, use 2L for atomization;

 6. Oxygen tubes and nebulization components are disposable medical consumables and should not be used for a long time or cross used. Troubleshooting and Solutions: The common fault codes for improper user use are E1, E2, E3. If a user reports a malfunction in the later stage, first ask them to restart the machine and take a picture of the display screen's working status, check the flow rate and concentration. If the concentration is normal, it means that the machine itself has no faults. Check from the outside.

 If the concentration is abnormal, then look at the fault code. 

1. Firstly, let's talk about the E5 code. This is a low voltage alarm, which is caused by the low voltage at the user's home. This situation occasionally occurs in summer or high altitude; Replace the socket or connect a voltage regulator when encountering it;

2. 2. E1 malfunction, first of all, it is necessary to clearly know whether the oxygen concentration on the display screen is normal. Normal concentration is due to external factors, such as whether the heat dissipation port is blocked, whether the machine is placed in an open area, and whether the filter screen has not been replaced for a long time; If the concentration is 21%, it indicates that the compressor has not started. This situation may be due to the compressor, power motherboard, or switch light. This situation should be returned to the factory for maintenance;

3. 3. E2 malfunction, first check the working status of the display screen. If the concentration and flow rate are normal, it is due to external reasons. Remove the humidification cup. If there is no alarm after 30 minutes to 1 hour, one is to check whether the air outlet of the bubble head in the humidification cup is blocked. If pure water is not used, it will usually be blocked after 5-7 days of use; If not blocked, the oxygen tube needs to be replaced; Check the alarm for the filter screen and filter felt;

4. 4. E3 malfunction, first check if the concentration of the display screen is normal. E3 occurs when the oxygen concentration is below 50%. This is due to moisture in the molecular sieve or prolonged disuse after purchasing the machine, so replace the molecular sieve; If the concentration is normal and E3 appears after working for 30 minutes to 1 hour, it is due to the machine's heat dissipation port being blocked or the filter screen not being replaced for a long time;

5. 5. There is no gas at the oxygen outlet. If the oxygen concentration on the display screen is normal, it is usually because the humidification cup is not installed and the lid of the humidification cup is not tightened;

6. 6. Disposable oxygen tubes have condensation water, which is more common in winter. The water in the humidification cup needs to be reduced, and the disposable oxygen tube needs to be replaced or an oxygen tube collector can be purchased on Taobao, usually for a few yuan each. The above are common problems with medical oxygen concentrators. If a household health oxygen concentrator does not produce oxygen, first check if the compressor is started.