What Are the Common T90/T50 Response Times in Gas Detectors?
Regardless of the brand of gas detector, whether it is a domestic gas detector or a major foreign brand, we can see T90 or T50 response time in a sensor parameter. It is a very important parameter, but what exactly does it mean?
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 will be. That's why T50/T90 is an important sensor parameter for gas sensors. If a certain brand cannot provide T50/T90 sensor parameters, then it is necessary to carefully verify whether the performance of the sensor itself is good or not.
