How to use and precautions for fixed gas detectors
The gas detector is a precision machinery that can detect the gas environment in the factory area in real time, protecting the safety of personnel in the factory area. However, problems often arise during the use of fixed gas detection, which hinders its ability to effectively fulfill its responsibility of safeguarding safety. For this type of precision machinery, proper maintenance and upkeep are often required, mostly due to improper use by users, lack of understanding of detector performance, improper equipment selection, users not following standard construction requirements, and insufficient maintenance, resulting in various malfunctions of gas detectors in the later stages of use, affecting their normal operation. In fact, mastering the correct usage method and regular maintenance can not only ensure the accuracy of gas detector detection, but also extend its service life.
During the use of gas detectors, combustible gas alarms should be kept away from air conditioning and heating equipment to avoid malfunctions caused by improper placement. When using air conditioning and heating equipment, if the cold and warm air flows directly through the combustible gas alarm, it may cause a change in the resistivity of the platinum wire of the combustible gas alarm, resulting in errors. Users should also pay attention to preventing electromagnetic interference when using combustible gas alarms; The installation position, installation angle, protective measures, and system wiring of combustible gas alarms should be designed to prevent electromagnetic interference. There are three main ways in which the electromagnetic environment affects combustible gas detectors: airborne electromagnetic wave interference, narrow pulse groups on power and other input/output lines, and human static electricity.
matters needing attention
1. Regular calibration, testing, and inspection are required for the maintenance of fixed gas detectors. Generally, the calibration frequency is once a year;
2. During installation, the detector should not be placed close to the wall. Sufficient space should be reserved around it for daily maintenance and troubleshooting;
3. The overall exterior of the detector needs to be kept clean, and a soft damp cloth can be used to wipe the surface of the detector. Do not use a damp cloth dripping with water to avoid water droplets accidentally splashing into the inside of the detector;
4. Ensure that the detector is in a dry state to avoid being affected by humid environments, which may affect its detection accuracy and service life;
5. The sensor dust cover is a "shield" used to protect the sensor. In order to prevent the dust cover from being blocked by dust and affecting the effectiveness of the sensor, it is necessary to regularly clean the sensor dust cover. A soft and clean brush can be used to clean the surface dirt and wipe it clean with warm water. After the filter screen dries, it should be re covered;
6. As the most important part of a gas detector, the sensor is known as the heart of the gas detector. In order to keep the heart beating steadily for a long time, it is necessary to avoid exposing the sensor to the odor generated by inorganic or organic solvents as much as possible, especially for electrochemical sensors used to detect toxic and harmful gases. The evaporation or contamination of the electrolyte can cause the signal of the sensor to decrease and shorten its service life.
