Comment tester l'alarme de monoxyde de carbone

Savoir comment tester l'alarme de monoxyde de carbone est une compétence utile pour garantir les performances de l'appareil.. And it may protect your safety in some risky situations.

How Do I Know If My Carbon Monoxide Detector Is Working?

Observation Method

We can observe the indicator light of the alarm. If its indicator light can normally light up after the power is turned on, then it is in normal working condition.

Test Method

If possible, we can simulate an environment that may produce carbon monoxide to test whether the alarm can issue an alarm in time. Cependant, this approach has some security risks. Donc, users should protect themselves from inhaling too much carbon monoxide during testing. En outre, some advanced carbon monoxide detectors come with a self-test function, which allows the user to easily check its working status by one click.

Why Is Testing Your Carbon Monoxide Detector Important?

Even if the process is a little complicated, testing methods to ensure the normal operation of carbon monoxide detector is a very reliable means. The visual observation of the indicator light usually only determines whether the detector is working. Cependant, the test method can fully detect the response time, alarm volume and stability of the CO detector.

De plus, the usefulness of a properly functioning carbon monoxide detector is not in doubt. Le monoxyde de carbone est incolore, inodore, non-irritating toxic gas, so the human body may be unknowingly poisoned. The CO detector monitors the concentration of carbon monoxide in the room in real time and sends an alert before the concentration reaches dangerous levels. De cette façon, it helps people a lot.

How Often Should You Test A Carbon Monoxide Detector?

According to the National Fire Protection Association (NFPA), we should test carbon monoxide detectors at least annually. For detectors that rely on battery power, we should check the battery status monthly.

Comment tester l'alarme de monoxyde de carbone

First, we make sure the carbon monoxide alarm is properly connected to the power supply. If it’s battery powered, we can check the battery for signs of corrosion. En outre, we press the self-test button of the carbon monoxide alarm. If the alarm sounds loud, it indicates that it can work normally. If there is no response after pressing the button, it shows that the alarm is faulty or the battery is low.

For families, the more professional way is to buy a CO detector test gas, which is available in Amazon. Généralement, it is painted in visible color and packed in a small aerosol can, so it is safe and convenient to use at home.

Test Carbon Monoxide Detector with Candle

Some people use candles test carbon monoxide detectors. Cependant, we do not recommend this because candle burning mainly produces carbon dioxide and water vapor with a small amount of carbon monoxide, which is not enough to trigger most normal carbon monoxide alarms. So this is not a scientific method.

Test Carbon Monoxide Detector with Cigarette

In the same way, we do not recommend cigarette testing methods that have been widely used. Similarly, cigarettes do produce carbon monoxide as they burn, but the concentration is so low that a normal household carbon monoxide alarm would not be triggered.

Cependant, if you do want this approach, we can still provide a general procedure. First, we make sure the carbon monoxide alarm has been energized for at least 10 minutes. Alors, we make sure the power light is green, which means the alarm is working. Suivant, we place the lit cigarette near the air intake of the alarm. By the way, the carbon monoxide alarm does not immediately alert as soon as carbon monoxide is detected, but when the concentration reaches a preset alarm threshold. So, it is a normal phenomenon that we have to wait a while for the gas concentration during test.

Test Done By Manufacturers Before Sales

How Do They Test The Recovery Capability After Being Exposed To Thick CO

The factory will prepare gas with a concentration higher than the setting point of the alarm. The gas goes to test the environment by specific equipment. Alors, the quality inspector observes and records the reaction time and alarm concentration of the alarm after exposure to high concentration of CO gas. After the alarm sounds, the operator immediately stops introducing CO standard gas. At this point, the inspector observes and records the time it takes to recovery from the alerts state to the normal state. Enfin, the inspector will also check the performance of the alarm after recovery, including its display value and alarm function.

How Do They Test The Loudness of the Carbon Monoxide Alarm?

The factory conducts sound tests in an enclosed space without noise. First, the tester places the sound level meter near the device for easy sound collection. He then adjusted the parameters of the sound level meter so that the decibel value of the sound could be accurately measured.

After starting a carbon monoxide leak, the inspector records the sleep time period of the alarm, the volume and duration of the sound. Once the alarm makes a sound, the inspector uses a sound level meter to measure the decibel value of the sound. Enfin, he sorted out the test time, location, environmental conditions, the type and specification of the alarm, and the measurement value of the sound level meter during the test.

How Do They Test the Lifespan of the Carbon Monoxide Alarm?

A tester usually selects a stable and controllable test environment to ensure the accuracy of test results. The test environment should simulate as much as possible the environmental conditions in the actual use of the CO sensor, including temperature, humidity and air pressure. In the next stage, the tester typically conducts weekly or monthly tests to observe changes in sensor performance.

Frequently Asked Questions

Common Types of Carbon Monoxide Detectors

Metal Oxide Taper

These carbon monoxide detectors measure the concentration of carbon monoxide based on the sensitivity of metal oxide semiconductor materials to carbon monoxide. When carbon monoxide comes into contact with a metal oxide semiconductor material, the resistance value of the material changes. Donc, the device can measure the change in resistance value to deduce the concentration of carbon monoxide. This principle makes its structure very simple. It is featured on the market with low cost and good service life. Généralement, people use it in homes and small factories.

Infrared Taper

The CO detector detects the concentration of carbon monoxide based on the absorption properties of carbon monoxide to infrared radiation. The Device emits a beam of infrared light internally. When carbon monoxide enters the device, it will absorb part of the infrared light. The device can then measure the absorption of infrared light to calculate the concentration of carbon monoxide. It is often used in high-precision laboratories and industrial production lines because it is not interfered by other gases with a wide measurement range.

Electrochemical Taper

An electro-chemical CO detector detects the concentration of carbon monoxide based on the principle of electric current generated by the redox of carbon monoxide in an electrolyte solution. When carbon monoxide enters the detector, it reacts with the electrolyte solution to produce an electric current. And the current is proportional to the concentration of carbon monoxide. De cette façon, the device can measure the current to deduce the concentration of carbon monoxide. It features high sensitivity, fast response speed and accurate measurement, so people often use it in occasions where carbon monoxide concentration should be accurately detected.

Is There An Easy Way to Test for Carbon Monoxide?

Because of its simple operation and low cost, the test-paper method is widely used in the rapid screening of carbon monoxide. The test strip is usually coated with a chemical that reacts with carbon monoxide. When the test paper is exposed to carbon monoxide, the chemicals on the test paper react with carbon monoxide and produce color changes. We can see if there is carbon monoxide by looking at these changes. Cependant, there are limits, of course. If you need higher test accuracy and reliability, then we still recommend CO detector as a household daily monitoring.

How Do We Maintenance Carbon Monoxide Detectors to Work Well?

• Keep the carbon monoxide detector away from humid and corrosive gases and environments.
• Periodically wipe the surface of the detector with a clean soft cloth to remove dust and dirt.
• Do not store or use carbon monoxide detectors in hot or cold places to avoid damage to components.
• Do not place the detector in an environment where corrosive gases or liquids may be produced.
• Replace the battery in time when the battery is low. Do not use the detector under voltage.