Fixed Benzene (C6H6) Gas Detector

Gas Detection Q&A - For Your Safety Environments

Built-in advanced gas detector sensor and sound & light alarm to ensure precise and safe gas detection in hazardous applications.

Q: Fixed C6H6 gas detector working principle

A: The Fixed Benzene (C6H6) gas detector uses the principle of photoionization detector (PID), which is mainly based on the ionization characteristics of Benzene gas molecules under ultraviolet light. There is a UV lamp inside the PID sensor, which usually emits ultraviolet light with an energy of 10.6 electron volts (eV) or higher. When Benzene gas enters the sensor, the UV photons interact with the Benzene molecules, causing the Benzene molecules to absorb energy and ionize, generating ions and free electrons. These ions and electrons form a current between the sensor electrodes, and the magnitude of the current is proportional to the concentration of Benzene gas. By measuring this current, the concentration of C6H6 gas can be accurately determined.

PID technology has high sensitivity and can detect very low Benzene concentrations, even at the ppb level. In addition, PID has a high selectivity for Volatile Organic Compounds (VOCs) such as Benzene, which makes it very effective in environmental monitoring and industrial safety. Due to the fast response speed of the PID sensor, it can monitor the changes in C6H6 gas concentration in real-time, thereby providing timely alarm and protection.

The Benzene gas detector using the principle of PID achieves high sensitivity and high selectivity detection of C6H6 gas through precise photoionization process, and is widely used in various environments where C6H6 gas monitoring is required.