A gas detector or gas monitor is a device to detect the concentration of leak gases in one area. Gas detectors play an important role in safety system to safeguard people and animal’s life. The gas detectors are widely used in the industries like refineries, pharmaceutical manufacturing, chemical plants, waste-water treatment etc., as well as confined spaces like pipeline.

ATO provides portable/handheld gas detectors and fixed gas detectors to monitor gas leak or concentration of Ammonia (NH₃), Hydrogen Sulfide (H₂S), Chlorine (Cl₂), Hydrogen (H₂), Nitrogen (N₂), Ozone (O₃), etc., in different applications or environments. The portable gas detectors have two versions, diffusion-type and pump-type. For the different detected gases, there are available for optional measuring ranges. High accuracy and reliability is a biggest advantage of ATO gas detectors but it is not the all. To know more about characteristics of ATO gas detectors, just go on to the product page.

What can a gas detector detect?

• Combustible gases: Natural gas (methane), liquefied gas, coal gas (hydrogen), acetylene, pentane, alkynes, acetone, toluene, alcohols, hydrocarbons, light oil, etc.
• Toxic gases: Carbon monoxide, hydrogen sulfide, ammonia, chlorine, oxygen, phosphine, sulfur dioxide, hydrogen chloride, chlorine dioxide and other toxic and harmful gases.
  
  

Gas Detector Application

Oil and gas

The gas detectors are typically applied in the exploration drilling platforms, production platforms, onshore oil and gas terminal stations, refineries, etc. And it is often used to detect the inflammable and explosive gases like Hydrocarbon gas, and toxic gases such as hydrogen sulfide, carbon monoxide, and so on.

Semiconductor manufacturing

In the water reactor, water dryer, and chemical vapor deposition and other typical occasions, the portable or fixed gas detectors are usually used to monitor the gas leakage and give the alarm.

Chemical devices or equipment

In the production process, using the by-products usually produces a variety of inflammable and toxic gases. The gas detectors are commonly used in the areas from raw material storage, processing area, laboratory, pump area, compressor station to boot area or non-boot area. The typical gases involve general hydrocarbon gas and other combustible gases, as well as hydrogen sulfide, hydrogen fluoride, ammonia and other toxic gases.

Power generation station

Traditionally, the main fuels for power stations are coal and oil. In Europe and the United States, most power station fuel has been converted to natural gas. The typical application fields are boiler tube operations and near the combustion furnace, turbine packaging and its surroundings, coal bunker and conveyor belts in older coal/oil power stations. And the gas leak detectors are often applied for monitoring natural gas, hydrogen, carbon monoxide, SOx, NOx and other inflammable or toxic gases.

Wastewater treatment plant

Wastewater treatment device is very common in many cities and towns. the sewage naturally emits methane and hydrogen sulfide. The H₂S gas with the smell of "rotten eggs" can be detected by the nose even when it is as little as 0.1 ppm, so it is noticeable. Therefore, a high sensitivity gas detector is very important to monitor the gas leak and guard the life of the workers.

Calibration of Fixed Gas Detector

In clean air, press the MENU, then press "+" to enter F04, then press OK, then press BACK. The detected data will become zero. Prepare the standard gas, we use iso-butane for calibration.

• Step 1: Press the Menu, then press "+" to enter F07, change the data to be the same as the value of the standard gas, then press OK.
• Step 2: Press the Menu, then press "+" to enter F08, now you will see it shows 0, change it to 1, then press OK and back.
• Step 3: Connect the sensor with the standard gas, gas flow rate is 500mL/min, wait till the data is stable, then press the OK for 3 seconds.

The calibration is finished. If the detected data difference among the detectors is only 2 or 3, then you can just do the zero calibration. Only when the detected data difference is above 10, then you need to do the span calibration by standard gas.

If you want to see more details of the calibration, please check:

Why invest in ATO gas detectors?

• ATO gas detector uses high precision and high stability sensors that can be freely combined and flexibly configured to achieve the function of simultaneous measurement of multiple gases.
• Handheld gas detector adopt PPM, mg/m³, %VOL, %LEL gas concentration units, which can be freely switched according to the choice.
• The use of ultra-high decibel buzzer alarm, vibration power prompt, four lights flashing. Triple alarm, safe and reliable, high and low secondary alarm values can be set by yourself.
• With real-time gas concentration curve drawing function, it is convenient to check the changes of gas concentration in the recent period of time.
• With password management function, important operations require password verification to effectively prevent misoperation.
• The use of large-capacity lithium polymer rechargeable batteries can ensure that the instrument can work continuously for a long time; the battery power is displayed in real time; it has its own charging prompt and undervoltage prompt function.
• With data storage function, you can view historical data on the instrument, or connect to a computer to export data, print and compare, and observe data changes.
• Comes with sturdy and high-grade all-stainless steel alligator clip, strong corrosion resistance, sturdy and durable, and easy to carry during operation.
• ATO gas detector comes with a high-strength and high-hardness special engineering PC plastic standard gas cover, which has the function of waterproof and dustproof, and can also be used for gas calibration.
• The lower shell is made of high-strength and high-hardness special engineering PC plastic, which has strong flame retardancy, wear resistance, and fatigue resistance. The appearance is beautiful and fashionable. Waterproof and dustproof function.
• The upper shell is made of full low carbon austenitic stainless steel after pickling, annealing, cold rolling and other processes. It has excellent corrosion resistance, strong durability, good cleanliness and durability. Small and light, easy to carry, it is most suitable for multi-component occasions such as emergency rescue, disaster disposal, atmospheric environment monitoring, analysis of special pollutants in parks, vehicle exhaust emissions, and boiler flue gas analysis.