What do T90 and T50 response times mean in a gas detector?
Nowadays, with the continuous development of the industrial field, toxic and harmful substances in industrial production have also increased. Gas detectors have become a part of industrial production, which can detect the concentration of toxic and harmful substances in production work and issue an alarm when the predetermined alarm value is reached, ensuring the personal safety of frontline workers. But whether it's domestic gas detectors or major foreign brands, we can see T90 or T50 response time in a sensor parameter. It is a very important parameter, so what does the T90T50 response time mean in a gas detector?
In fact, besides the common T90 and T50 response times, there are also less common T10 and T20 response times. But conceptually, they all have the same meaning, they reflect the response speed of gas detectors to toxic and harmful gases.
In general, the so-called T50/T90 response time refers to the time consumed by a gas detector when the reading changes from 0 to 50% or 90% of the toxic gas concentration measured in the environment. For example, the hydrogen peroxide detector has a T90 response time of ≤ 60 seconds. It means the time required for the hydrogen peroxide detector to change from a reading of 0 to 90% of the actual hydrogen peroxide concentration in the environment.
For example, if the concentration of hydrogen peroxide in the actual environment is 5ppm, the detector reading will change to 4.5ppm in less than 60 seconds; If the concentration of hydrogen peroxide in the environment is 20ppm, the reading of the detector will change to 18ppm in less than 60 seconds.
Therefore, we can know that the shorter the response time of T50/T90, the more sensitive the gas detector itself is. That's why T50/T90 is an important sensor parameter for gas sensors.
