One

首先我们应该注意便携式气体检测仪的测量的检测范围 所有的便携式气体检测仪都有固定的，也就是说只有在这个范围内检查出来的数值是正确的。如果不再量程之内，那么测量出来的结果远低于您所在环境的值。除此之外，如果长时间的将气体检测仪在他的测量范围外使用，就会对传感器造成损伤，会导致后期在测量是无法得到正确的数据。

First of all, we should pay attention to the detection range of portable gas detector. All portable gas detectors are fixed, that is to say, only the values that are checked in this range are correct. If the range is no longer, the measured results are much lower than the value of your environment. Besides, if the gas detector is used outside his measuring range for a long time, it will cause damage to sensors, which will lead to incorrect data acquisition in later stage.

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Two

其次我们还要注意气体检测仪传感器的使用寿命 任何的产品都有他的使用寿命，便携式气体检测仪同样如此，及时没有经常的使用也会出现老化的现象，所以我们在使用之前一定要仔细的看好说明书，如果发现其过期之后应立即停止使用。

Secondly, we must pay attention to the products of sensor gas detector life of any use of his life, portable gas detector the same, no timely regular use will also appear the phenomenon of aging, so we must carefully before using the optimistic statement, if found after the expiration should immediately stop using.

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Three

最后我们还要经常对气体检测仪进行校准和检测

Finally, we also have to calibrate and detect the gas detector.