How long do gas detectors last?
Many people have the question when using a gas detector: how long will it actually last? Many users assume that a gas detector can be used until it is completely damaged and unusable. In fact, is this correct?
In fact, the service life of a gas detector depends mainly on its main component - the sensor.
We know that there can not be a sensor can detect all the gases to meet all the requirements of a variety of gases and a variety of environments to use the sensor is not the same, can be broadly divided into: for the detection of toxic gas concentration of sensors and sensors used to detect the explosive concentration of combustible gases.
1, most of the sensors used to measure the concentration of toxic gases are electrochemical sensors, it is based on electrochemical principle of working sensors, the main influence on its life is the electrolyte, general sensors in the ideal environment after 2-3 years, the electrolyte is consumed can no longer work properly, so the service life of electrochemical sensors is 2-3 years. 3 years.
2, most of the sensors used to detect the concentration of combustible gases are catalytic combustion sensors, which have a service life of 3-5 years under ideal conditions. In addition, the service life of gas detectors (including fixed gas alarms and portable gas alarms) is very much related to the concentration it is exposed to.
For example, if the sensor of an ammonia detector is continuously exposed to 2ppm ammonia, its life expectancy is about one year (or 2ppm).
For example, if a sensor in an ammonia detector is continuously exposed to 2ppm ammonia, it will have a life of approximately one year (or a 2ppm annual life), or six months if it is exposed to an ammonia level of 4ppm. This makes the ammonia sensor unsuitable for use in fertiliser plants, where ammonia concentrations average around 20-30ppm.
Therefore, the main factor affecting the life of the sensor also lies in the environmental environment it is in the more vicious the shorter the life, followed by the sensor's mechanism. Sensor directly affects the use of gas detectors, so the use of the sensor is concerned about the state of the sensor is also concerned about our own safety.
