During the use of gas detectors, some users may also encounter situations where the instrument does not respond and there is no alarm when there is a gas leak. What’s going on?
Cause Analysis
1 Sensor failure: The sensor is the core component of the gas detector. Long-term exposure to harsh environments, such as high-concentration gas, high temperature, high humidity, etc., may cause the sensor to be poisoned, aged or damaged, thereby losing the ability to detect gas.
2 Power supply problem: For battery-powered gas detectors, insufficient battery power will cause the device to fail to work properly; for wired-powered devices, power line failures, unstable voltage and other problems may also cause the device to “never ring”.
3 Unreasonable alarm threshold settings or incorrect calibration: If the alarm threshold is set too high, when the actual gas concentration reaches a dangerous level, the device may not trigger an alarm, giving people an illusion of “failure”. In addition, incorrect calibration by the user, such as inaccurate standard gas concentration used during calibration, or the calibration environment does not meet the requirements, will cause the detector to lose its alarm function.
4 Equipment aging or damage: After long-term use, the internal electronic components of the gas detector may age or be damaged, causing the device to fail to work properly. Or the lifespan expires, the sensor fails, and loses its normal detection function.
Solution to the “no sound” of the gas detector
01 Replace the sensor: Once the sensor is found to be invalid, the manufacturer or professional maintenance personnel should be contacted in time to replace the new sensor. When replacing the sensor, make sure to choose a product that matches the device model and install it according to the correct operating method.
02 Check the power supply: For battery-powered devices, check the battery power regularly and replace the low-power battery in time; for wired-powered devices, check whether the power line is connected normally and the voltage is stable. If necessary, you can ask a professional electrician to check and repair it.
03 Reasonably set the alarm threshold: According to the actual use environment and safety requirements, refer to relevant standards and specifications, and reasonably set the alarm threshold of the gas detector. At the same time, the equipment should be calibrated regularly to ensure the accuracy of the alarm threshold.
04 Timely repair or replace the equipment: If the gas detector is severely aged or damaged beyond repair, it should be replaced with a new one in time. When choosing new equipment, choose products with reliable quality and stable performance, and ensure that they meet relevant safety standards and certification requirements. Similarly, if the instrument expires, it should be replaced in time.
How to properly maintain and service gas detectors?
Regular calibration: Calibrate the detector regularly according to its frequency of use and environmental conditions to ensure that its detection accuracy meets the requirements. It is generally recommended to calibrate it every six months or one year.
Cleaning and maintenance: Clean the surface of the detector regularly to remove dust and dirt and maintain the sensitivity of its sensor. When cleaning, wipe with a soft dry cloth and avoid using corrosive cleaning agents.
Replacement of parts: When the parts of the detector are aged or damaged, they should be replaced in time. In particular, core components such as sensors should be replaced regularly according to the requirements of the instructions.
