What are the functions and functions of the gas detector
Now with the enhancement of everyone's awareness of environmental protection, the gas detector is not only an industrial product, but the error value of most civilian products is too large, and then the editor is responsible for the industrial gas detector, so what are the functions of the gas detector? and role?
What points should be paid attention to when using a gas detector first?
1. Calibration and testing: This is the most important thing. If the measured value is not accurate enough, what is the use of the tester?
2. Detection interference between different sensors: Same as above, if the value is not accurate enough, the reference value of the value is not great;
3. The life of the sensor: this is the question of cost performance;
In addition to these, many people don't know what is the function of the gas detector?
No matter what kind of gas detector, it has the following functions!
1. Zero adjustment: it is zero in normal air: it is generally recommended that customers do not try it lightly;
2. Calibration: one kind of calibration: calibration with calibration gas;
3. Low report: automatic alarm when the concentration is lower than a certain value: most of the time it is a first-level alarm, but some manufacturers will set the alarm when the oxygen is lower than 18.5%;
4. High alarm: Automatic alarm when the concentration is higher than a certain level: generally it will be a second-level alarm, but some manufacturers will set an alarm for oxygen higher than 23.5%.
Note: In normal air, nitrogen accounts for 78%, oxygen 21%, and poisonous 1%. Oxygen lower than 18% will cause human hypoxia, and oxygen higher than 24% will cause human drunkenness;
5. Reset: restore factory settings: when the measurement value is no longer accurate due to improper operation by the customer, the reset operation can be performed.
All kinds of gas detectors are similar, and these functions are basically available.
