Can the gas detector be used outside the concentration detection range?
Nowadays, with the continuous enhancement of my country's national strength and the increasing emphasis on environmental sanitation and testing, various gas detectors have been introduced to detect whether the indicators of various gases are qualified. The 24-hour continuous online monitoring and temperature and humidity measurement of a certain gas concentration on site can be effectively detected by the gas detector, which plays an important role in preventing accidents. However, in general, the type of gas it detects is related to its concentration. Therefore, the detection of a certain gas has a certain range. So can the gas detector be used outside the concentration detection range? The following editor will introduce to you:
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The gas detector cannot be used outside the concentration detection range.
For example, the four gases routinely measured by the four-in-one gas detector are combustible gas, hydrogen sulfide, carbon monoxide, and oxygen. The detection range is as follows:
1. Combustible gas (methane): between 10%LEL - 25%LEL, that is, 0.5% methane - 1.25% methane gas detector will alarm.
2. Hydrogen sulfide gas: the gas detector will alarm when it exceeds 10ppm.
3. Carbon monoxide gas: the gas detector will alarm when it exceeds 24ppm.
4. Oxygen: When it is lower than 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 to the gas detection probe (sensor), failure, or burning.
Another example is a combustible gas detector whose detection range is 0-100% LEL. If it is used to detect an environment exceeding 100% LEL, then if it is used in an environment exceeding 100% LEL, the sensor may be burned. For toxic gas detectors, working at a higher concentration for a long time will also cause damage to the sensor. Therefore, if the gas detector sends an over-limit signal when it is in use, immediately turn off the power switch to ensure the safety of the instrument.
To sum up, we can see that only when the gas detector is used within the calibrated concentration detection range can the authenticity and reliability of the measurement results of the detection alarm be guaranteed. Exceeding the calibrated concentration detection range will cause serious consequences such as damage to the gas detection probe (sensor), failure, or burning. In short, gas detectors can effectively suppress pre-disasters, so that accidents that may cause disasters are controlled in advance, while protecting industrial safety and the safety of workers. Gas detectors need to be combined with specific use environments and required functions. Choose.
