6 Misunderstandings about Gas Detectors
Gas detector is one of the commonly used detection instruments in industrial production. It can detect the concentration of toxic and harmful substances in work, detect the type of gas in the environment, and use corresponding safety protection equipment based on the detection results. However, there are sometimes misunderstandings when using gas detectors. The specific situation is as follows:
Misconception 1: Gas detectors can detect any gas
A detector can only detect a specific gas. The composite gas detector can only detect several gases simultaneously.
Misconception 2: Gas detectors can be installed freely
Strictly require the installation position of gas detectors. The installation position is incorrect and cannot be detected properly.
Misconception 3: Testing with high concentration gas during acceptance
Some customers use high concentration gases for testing during the acceptance process. This approach is very loose and can easily damage the instrument. The detection range of combustible gas detectors is 0-100% LEL. Testing with gases higher than this concentration range may cause fumigation of the sensor, resulting in sensor damage or detection failure!
Misconception 4: As long as there are flammable or toxic gases around the gas detector, the alarm should sound an alarm
The condition for the gas detection alarm to sound is that it will only emit an alarm signal when the measured gas concentration reaches or exceeds the preset value of the instrument.
Misconception 5: Damage to the explosion-proof facilities of gas detectors does not affect their use
During use, if there is damage to explosion-proof facilities such as alarm explosion-proof seals, looseness, or rupture of explosion-proof pipes, they should be repaired in a timely manner.
Misconception 6: Gas detectors do not require maintenance and upkeep
A gas detector is a measuring instrument that requires regular calibration to ensure its accuracy in detection. Long term use of gas detectors can cause drift, and if not calibrated in a timely manner, the error will continue to increase, posing a safety hazard.
According to regulations, the maximum calibration period for gas detectors shall not exceed one year, and enterprises with specialized metrology departments are recommended not to exceed three months. The calibration of gas detectors should be operated by professionals.
