What should be paid attention to when using toxic and harmful gas detectors
Toxic and harmful gas detectors, as a special instrument, must be used carefully, so what should we pay attention to when using toxic gas detectors? Let's take a look at the precautions for toxic and harmful gas detectors
What should be paid attention to when using toxic and harmful gas detectors
method/step
First of all, we should pay attention to understand the interference of various detectors. For most gas detectors, each sensor has a specific detection gas corresponding to it. When we decide which gas sensor to use, we must know more about the interference of other gases on this sensor, which will affect the detection of this gas sensor. This is to ensure the accurate detection of specific gases by the sensor.
Secondly, we must pay attention to the service life of the detector or its life. Each type of gas detector has a different lifespan. In most cases, at present, generally speaking, LEL sensors have a relatively long service life in portable instruments, generally about three years; photoionization detectors have a service life of four years or longer; electrochemical specific The life of the gas sensor is relatively short, usually one to two years; the life of the oxygen sensor is the shortest, about one year. The lifetime of an electrochemical sensor depends on the drying up of the electrolyte therein. If these detection instruments are not used for a long time, the detector should be placed in a sealed environment, and the temperature of this sealed environment should be low, so as to prolong the service life of the detector. Stationary instruments have a longer lifespan than portable instruments because they are larger than portable instruments. In normal use, we should test the testing instrument frequently, and use it within the validity period of the testing instrument as much as possible. If the service life of the testing instrument has passed, it should be replaced with a new testing instrument.
3 Finally, we should pay attention to the concentration measurement range of the detection instrument. The detection range of each toxic and harmful gas detector is different and has its own detection range. Only when the measurement is completed within the specified detection range of the detector can the instrument be accurately determined. If the measurement is performed outside the measurement range for a long time, it may cause damage to the sensor, thereby affecting the measurement result. If you exceed the detection range of the detector, the instrument will send out a signal. When you see this signal, you must immediately turn off the measurement circuit to ensure the safety of the sensor.
4 Toxic and harmful gas detectors should pay attention to many places, which requires us to read the instruction manual carefully before use, and test according to the correct operation method, so as to ensure that the detection instrument will not be damaged.
