How far can your gas detector detect the jurisdiction?
How far can your gas detector detect the jurisdiction?
A: Users often ask this question and mistakenly think that the gas detector can detect a long distance. In fact, there is a misunderstanding here. Gas detectors, especially fixed gas detectors, are generally diffused, that is to say, gas needs to diffuse to the sensor head of gas detection before they can detect the concentration. Otherwise, even if the toxic gas is nearby, it will not be detected. To give a simple example: human sense of smell is a very sensitive organ, which can ask about trace gases in the air up to ppb level or above, so sometimes we need to get close to ask, and sometimes we can smell them far away, which is due to the direction of air flow and the concentration ratio. The gas is dissolved in the atmospheric air, which may not be detected by the gas detection equipment nearby because of the wind direction. As the gas flows away from the gas leakage point, the gas concentration is lower, so the gas concentration detected in the distance is safe, which does not mean that all locations are safe and the concentration is so low. There is no strict standard for how far to install one nearby. Only in combination with the site situation, the location distribution of hazard sources is reasonably arranged. It is recommended to install one equipment in a large area of 20m2, or one equipment in a range of 10-20 meters.
What are the environmental conditions for installing a gas detector?
Answer: Gas detectors have their own adaptive working conditions, and we mainly need to pay attention to these basic conditions, such as humidity, temperature and pressure. Generally, it is suitable to install them in our environmental factory, and they can basically be directly installed and fixed. However, when we install them in confined spaces, such as pipes and flues, we should pay attention to the working conditions. Most of our gas detectors, no matter what brand, can adapt to the conditions. -20 to 50 degrees, humidity below 90%, no condensation, and pressure within 100kp. Once the environmental conditions are not in it, it will affect the accuracy of measurement and the service life of the instrument. At this time, we should consider adding gas pretreatment equipment. To carry out gas treatment and let the gas that meets the conditions enter the gas sensor head.
Is there any effect of excessive dust at the installation location?
Answer: Too much dust in the gas will easily lead to the adsorption of the gas sensitive components of the gas sensor, which will lead to blockage and decrease the detection accuracy. Therefore, once used in a high dust environment, dust must be filtered and cleaned regularly according to the dust situation. Here, please remember not to wash with water, or wipe with alcohol and other solutions. Only clean the sensor surface with a clean soft cloth.
