Factors to Consider When Selecting a Toxic Gas Detector
① How to select a fixed gas detector first? This type of instrument is widely used in industry. It is installed at a fixed location to detect leaked toxic gases. It is generally a two-part unit installed separately at the detection site and a safe area for convenient monitoring, featuring continuous and stable performance. However, it is not universal. Selection shall be based on the gas type and concentration, and the installation location requires careful planning: mount the sensor at a proper height near potential leakage points.
② Next is the selection of portable gas detectors. Compact and easy to operate, portable units can be carried to various sites. The CO sensor is integrated in the probe, and the sensing wand can measure humidity, temperature and other parameters.
③ Furthermore, toxic gas detectors can be selected according to whether the working environment is open or enclosed, i.e. distinguishing between confined spaces and open areas.
④ For confined working spaces such as storage tanks and sewers, testing must be performed before personnel enter, and the measurement can be carried out outside the confined space. Detectors for confined spaces are usually equipped with a built-in sampling pump, since gas concentrations and types vary at upper, middle and lower levels within the space. The built-in pump enables multi-point sampling of various gases at different heights. Compact and easy for workers to carry, such detectors can measure organic and inorganic gases and detect oxygen deficiency, so as to protect workers' life and health.
⑤ For open environments such as open workshops, diffusion-type toxic gas detectors can be deployed as wearable alarm devices, which continuously, in real time and accurately display toxic gas concentrations.
