Kenapa Gas Pengesan perlu untuk get ditentukur dan tested on a regular basis
Terdapat adalah beberapa mata itu perlu kepada be dibayar perhatian kepada bila menentukuran mudah terbakar gas detectors:
1. In principle, the calibration of combustible gas detectors should use standard gas that has been certified by metrology and matches the gas to be detected.
2. Sebelum menentukur the combustible gas detector, make sure that there is no flammable gas in the surrounding environment of the combustible gas detector. If there is flammable gas, remove the rain cover first, fill it with a certain amount of clean air, and then continuously introduce sample gas to ensure the accuracy of the calibration.
3. When the measured gas is a hydrocarbon mixture, isobutane is the sample gas, followed by propane.
4. For non-hydrocarbon mixtures or hydrocarbon mixtures that produce significantly different amounts of heat when burning gases with lower explosive limit concentrations, easily available and stable single-component fuels such as butane, isobutane, and propane can be used as a last resort. As a sample. At this time, the range of the alarm must be adjusted based on a certain detection signal conversion relationship.
Common gas detectors include portable gas detectors, four-in-one gas detectors, VOC detectors, etc. When you buy a gas detector, the merchant will pada dasarnya instruct you on how to adjust the gas detector, and will also remind you that the gas detector needs to be calibrated regularly. Why is this?
1. Ketepatan daripada instrumen is an important prerequisite for issuing an alarm when the concentration of toxic and harmful gases or combustible gases in the detected environment reaches the preset alarm limit. Correct and timely alarms are the guarantee for personnel safety and production safety.
2. Ketepatan daripada the detector terutamanya depends on the sensor. Electrochemical sensors and catalytic combustion sensors will be affected by certain substances in the environment during use and gradually change or even become poisoned and fail. Therefore, regular calibration of gas detectors is completely necessary.
3. At present, all gas detectors have not got rid of the relative measurement method. Because of this, the instruments need timely maintenance and calibration. Only after correct calibration according to the manufacturer's requirements, the accuracy of the results detected by the instrument can be guaranteed. To be guaranteed.
4. In order to ensure that the error of the instrument test results does not exceed the normal range, frequent calibration is also necessary. Just like our watches, we often correct them with the standard time to ensure the accuracy of the time displayed by the watch. For gas detectors whose detection results involve the safety of personnel, accuracy is even more important.
