What are the oxygen detectors? What kind of oxygen detector is used in industry?

1. What are the oxygen detectors:

1. According to the method of use: portable, fixed, handheld, desktop.

2. According to the detection principle: electrochemical formula, zirconia formula, fluorescence method, paramagnetic method, ultrasonic type.

3. According to the range: constant oxygen, high purity oxygen, trace oxygen.

4. According to the use environment: industrial oxygen, medical oxygen, automobile oxygen, and water oxygen.

Second, the oxygen detector is used in industry.

The most used in industry is the constant oxygen detector based on the principle of electrochemical detection, which detects whether the oxygen concentration in the environment is in line with the concentration of normal human breathing, so as to avoid hypoxia for workers. It is mainly used in confined spaces (places with poor ventilation).

Another is to detect the oxygen concentration in flammable gases to prevent **.

Oxygen detection alarm is a personal portable gas detection alarm, its sensor uses electrochemical sensor, sensitive response, suitable for continuous detection of the percentage concentration of oxygen in the ambient air of industrial and mining enterprises, when the environmental concentration is high, the high limit, low limit sound, light, vibration alarm, warning the site personnel to evacuate the dangerous area as soon as possible.

There are several types of oxygen detectors: handheld oxygen detectors, fixed oxygen detectors, portable oxygen detectors, and analytical oxygen detectors. As for the kind of oxygen detector suitable for industrial use, it depends on the specific characteristics of your environment, and the purpose of the test, there is no best one between them, because they are not the same way of application:

Handheld: small and convenient, instant detection, fixed: real-time detection, easy to install, portable:

Instant detection, more functions than handheld,**Analysis: Real-time detection and analysis, powerful (suitable for complex and harsh environments) Only choose the most suitable one according to your environment and needs.

If the oxygen detector detector is distinguished by the way it is used, it can be divided into handheld oxygen detector, portable oxygen detector, fixed oxygen detector and so on; If it is distinguished according to the more obvious functional characteristics, it can be divided into oxygen detector with display, oxygen detector with alarm, oxygen detector without display, oxygen detector without alarm, etc.; If it is distinguished according to the inspection principle, it can be divided into electrochemical oxygen detector, zirconia oxygen detector, semiconductor oxygen detector and so on. If you plan to use an oxygen detector in an industrial environment, it is best to choose an oxygen detector with an alarm. Of course, it is best to choose the appropriate oxygen detector according to the characteristics of the specific on-site use environment and the purpose of the test.

1.Turn on the power switch of the oxygen concentrator, the flow rate is 3 liters, and the machine will run normally for more than 5 minutes.

2.Take a clear glass, pour 1cm of water high, put the nasal tip of the oxygen tube into the glass, and cover the mouth of the cup with paper.

After a few minutes, remove the paper and gently remove the tip of the nose from the glass, at which point the glass is filled with oxygen.

4.Light a match or toothpick and blow out the flame.

5.Gently place the sparked match into the glass.

6.The match was re-burned, which turned out to be oxygen.

7.In general, the higher the oxygen concentration, the brighter the burning flame.

Through the above steps, the oxygen concentration can be basically determined. If you find that the match cannot be re-lit or the flame is weak, the oxygen concentration is low. You should contact the manufacturer for repairs.

Oxygen is collected by drain gas gathering:

Fill the cylinder with water, cover it with a glass sheet, place it upside down in the sink, and extend the air duct under the mouth of the cylinder, and the water will be discharged when the bubbles enter the cylinder. This is known as the drain gas collection method. When collecting gas, it is not possible to collect air bubbles at the catheter orifice, but to wait for the air in the test tube and the catheter to be cleared until the air bubbles at the catheter orifice are continuously and evenly discharged.

When the bottle leaves the water, cover the mouth of the bottle with a glass sheet and place it upright on the table.

Use a wooden stick with a spark to stick into the gas collection cylinder, and if the wooden stick burns, it proves that the bottle contains oxygen.

The gas is collected in a test tube and inserted with a wooden strip with sparks, and the wooden strip is re-ignited.

1. Potassium permanganate to prepare oxygenDrug: potassium permanganate (dark purple solid), and manganese dioxide (black powder). The equation for the thermal decomposition of potassium permanganate is controversial because its decomposition products will vary under different temperature conditions.

<>2. Manganese dioxide and potassium chlorate are co-heated, and potassium chlorate (white solid) and manganese dioxide (black powder) are heated. The prepared oxygen contains a small amount of Cl2, O3 and trace amounts of ClO2; This method has been removed from some textbooks; The reaction is actually an exothermic reaction, not an endothermic reaction, and the above 1mol reaction occurs, and the exothermic reaction is 108kJ.

3. Catalytic decomposition of hydrogen peroxide solution, drug: hydrogen peroxide (H2O2) and manganese dioxide (black powder mnO2).

Precautions for the production of oxygen.

The experiment first checks the air tightness, and the test tube is tilted evenly by heating: "test tube tilting" means that when installing a large test tube, the test tube should be slightly tilted, that is, the test tube mouth should be lower than the bottom of the test tube, so as to prevent the small amount of water contained in the drug from becoming water vapor when heating, and condensing into water droplets at the nozzle and backflowing, resulting in the rupture of the test tube. "Evenly heated" means that the test tube must be heated evenly when heated.

Remove the catheter first and then move the lamp: It means that when the oxygen production is stopped, the dust must first withdraw the air duct from the water tank, and then remove the alcohol lamp If the alcohol lamp is removed first, the temperature in the test tube will decrease and the air pressure will decrease, and the water will be sucked along the catheter into the hot test tube, causing the test tube to rupture due to rapid cooling.

-30%vol, used for personal safety protection detection, to prevent personnel from hypoxia, using one of the most common measurement ranges -25%vol, used for industrial boiler exhaust gas combustion emissions, combustion efficiency index detection, monitoring of oxygen content indicators in the combustion furnace, generally this application requires the use of high-temperature zirconia principle oxygen detector -100%vol, oxygen oxygen generator purity testing, oxygen concentration detection in the medical industry, these are oxygen detector measurement range that requires high concentration -5% vol, this measurement range is mostly used for industrial pipeline exhaust gas treatment, the purpose of the brigade in order to control the oxygen content shall not exceed the standard, otherwise it is easy to lead to accidents caused by the catalysis of oxygen, so the control of oxygen content is very important. In fact, the measurement range of the oxygen detector is about the same, but the manufacturer's timely response and after-sales are crucial, it is recommended to choose a more reliable oxygen detector manufacturer, such as Yiyuntian, in the performance of the detector product, the industry feedback is very good.

-30% volume percent.

It is used for human safety testing, to prevent hypoxia in people, using the most common measurement range.

25% volume percent.

It is used to detect combustion efficiency indicators and monitor oxygen content indicators in combustion furnaces. Typically, this application requires an oxygen detector based on the high-temperature zirconia principle.

100% volume percent.

The purity testing of oxygen concentrators and the detection of oxygen concentration in the medical industry are pure brothers, and the measurement range of high-concentration oxygen detectors is required.

5% by volume.

The measurement range of 0-5%vol is mostly used in the exhaust gas treatment of industrial pipelines to control the oxygen content not to exceed the standard, otherwise it is easy to cause accidents due to the catalytic effect of oxygen, so it is very important to control the oxygen content.

10000ppm/0-1000ppm .

0-10000ppm, belongs to the field of trace oxygen detection, mainly used in the occasion of equipment vacuuming, closed attack or high-risk industrial fields, and has extremely high requirements for oxygen control.

Summary. Hello, the purpose of the air oxygen detector is to detect the oxygen content in the air. Oxygen detection alarm, its sensor adopts electrochemical sensor, sensitive response, suitable for continuous detection of the percentage concentration of oxygen in the ambient air of industrial and mining enterprises, when the environmental concentration is high, the high limit, low limit sound, light, vibration alarm, warning the site personnel to evacuate the dangerous area as soon as possible.

Hello, the air oxygen detection oak which instrument is used for state bending is to detect the oxygen content in the air of the beam closed code. Oxygen detection alarm, its sensor adopts electrochemical sensor, sensitive response, suitable for continuous detection of the percentage concentration of oxygen in the ambient air of industrial and mining enterprises, when the environmental concentration is high, the high limit, low limit sound, light, vibration alarm, warning the site personnel to evacuate the dangerous area as soon as possible.

I don't understand the voice here.,Can you type instructions.。

Good! Excuse me; C-MER brand, air oxygen concentration detector, can the product be? My main purpose is、Every Qinghong Hall to a hidden scenic spot to test the high oxygen content of the air in the place、I will stay for a few more days is this purpose, right? Thank you.

Hello, the CMA brand is exactly what you need, this instrument that just measures the oxygen content of the air is easy to carry.

Methods for testing oxygen

1. Oxygen has combustible properties and can rekindle wooden strips with sparks. When testing oxygen, it is generally used to extend the gas cylinder with Martian wood strips into the gas collector cylinder to see if it is re-ignited, and if the wooden strips are re-ignited, the gas is oxygen. The method of collecting oxygen is the upward exhaust air method or the drainage method.

2. Oxygen is a kind of elemental element formed by oxygen, with the chemical formula O2, which is relatively active in chemical properties and can react with oxygen with most elements. It is not very active at room temperature, and it is not easy to interact with many substances. However, it is very active at high temperatures and can be directly combined with a variety of elements, which is related to the electronegativity of oxygen atoms second only to fluorine.

Use a wooden strip with sparks and put it on the mouth of the gas collection cylinder, if the wooden strip is rekindled, it proves that it is oxygen.

Stick a stick with a spark in it into the gas collection cylinder, and if the stick rekindles, there will be oxygen inside.