Can gas detectors be used outside the concentration detection range?
Nowadays, with the continuous enhancement of China's national strength and the increasing emphasis on environmental hygiene and detection, various types of gas detectors have been launched to detect whether the indicators of various gases are qualified. The gas detector can effectively detect the concentration of a certain gas on site for 24 hours of continuous online monitoring and measurement of temperature and humidity, which plays an important role in preventing accidents. However, generally speaking, the type and concentration of gas it detects are related, therefore, detecting a certain gas has a certain range. Can gas detectors be used outside the concentration detection range?
Gas detectors cannot be used outside the concentration detection range.
If the four in one gas detector conventionally detects combustible gases, hydrogen sulfide, carbon monoxide, and oxygen, the detection range is as follows:
1. Combustible gas (methane): between 10% LEL and 25% LEL, i.e. 0.5% methane to 1.25% methane gas detector will alarm.
2. Hydrogen sulfide gas: When it exceeds 10ppm, the gas detector will alarm.
3. Carbon monoxide gas: The gas detector alarms when it exceeds 24ppm.
4. Oxygen: When it is below 18.0%, the gas detector will alarm.
If the conventional measurement of the four in one gas detector exceeds the calibrated concentration detection range, it will cause serious consequences such as damage, failure, or burning of the gas detection probe (sensor).
For example, a combustible gas detector with a detection range of 0-100% LEL may burn out the sensor if used to detect environments exceeding 100% LEL. The use of toxic gas detectors at high concentrations for extended periods of time can also cause damage to the sensors. So, if the gas detector emits an over limit signal during use, the power switch should be immediately turned off to ensure the safety of the instrument.
In summary, we can see that gas detectors can only be used within the calibrated concentration detection range to ensure the authenticity and reliability of the measurement results of the detection alarm. Beyond the calibrated concentration detection range, it will cause serious consequences such as damage, malfunction, or burning of the gas detection probe (sensor). In short, gas detectors can effectively suppress disasters before they occur, allowing potential accidents to be pre controlled, while protecting and ensuring industrial safety and the safety of workers. Gas detectors need to be selected based on specific usage environments and required functions.
