The choice of gas detector varies according to the industrial environment.
A) Fixed gas detectors.
This is a more used detector on industrial installations and in the production process. Yi Yang gas detector can be installed in a specific detection point on the specific gas leakage detection. Yi Yang fixed detector is generally two-body type, there are sensors and transmission of the composition of the detection head for the integration of the installation in the detection site, there are circuits, power supply and display of the alarm device composed of the secondary instrumentation for the integration of the installation in the safety of the place, easy to monitor. Its detection principle as described in the previous section, only in the process and technology is more suitable for fixed detection of the required continuous, stable for a long time and other characteristics. They should also be selected according to the type and concentration of gas on site, but also pay attention to the installation of them in a particular gas * may leak parts, such as the specific gravity of the gas to choose the sensor installed * effective height and so on.
B), portable gas detector:
Yi Yang portable instruments are easy to operate, compact size, can be carried to different parts of the production, electrochemical detector using alkaline battery power supply, can be used continuously for 1,000 hours; new LEL detector, PID and composite instruments using rechargeable batteries (some have been used without the memory of the sickle-hydrogen or carp-ion batteries), so that they can generally work continuously for nearly 12 hours, so as this type of instrument in the Therefore, as this type of instrument in various types of factories and health sector applications are becoming more and more widespread.
If it is in the open occasions, such as open workshop use this kind of instrument as an alarm, you can use the diffusion gas detector to wear, because it can continuously, real-time, and accurately display the concentration of toxic and hazardous gases on the scene. Some of these newer instruments are also fitted with vibration alarm attachments to avoid inaudible audible alarms in noisy environments, and computer chips to record peaks, STELs (15-minute short-term exposure levels) and TWAs (eight-hour statistically weighted averages) to provide specific guidance for worker health and safety.
