p>Q1: What is a gas detector?
A1: A gas detector is an instrument for gas leakage concentration detection, including a portable gas detector, handheld gas detector, fixed gas detector, online gas detector, etc.
Q2: What does a gas detector detect?
A2: Combustible gases: Natural gas (methane), liquefied gas, coal gas (hydrogen), acetylene, pentane, alkynes, acetone, toluene, alcohols, hydrocarbons, light oil, etc. Toxic gases: Carbon monoxide, hydrogen sulfide, ammonia, chlorine, oxygen, phosphine, sulfur dioxide, hydrogen chloride, chlorine dioxide and other toxic and harmful gases.
Q3: What is ppm of gas detector?
A3: Parts per million or "ppm" is often used as a fractional measure of concentration. For example, a methane (molecular) concentration of 2% means that 2 out of every 100 air molecules are methane. Likewise, a methane concentration of 2 ppm means that 2 out of every 1 million air molecules are methane.
Tips: How to choose gas detectors according to application scenes?
The selection of gas detectors differs from the industrial environments.
- Fixed gas detector: Such a gas detector is mostly used in industrial devices and production processes. It can be installed on a specific detection point to detect specific gas leaks.
- Portable gas detector: As the portable gas detector is easy to operate and compact, it can be carried to different production sites. In open occasions like open workshops for security alarms, a wearable diffusion-type gas detector is recommended because it can display the concentration of toxic and harmful gases continuously, in real time and accurately on site. If it’s used in a confined space, such as the reaction tank, storage tank or container, sewer or another underground pipeline, underground installations, cargo hold and tunnel, a multi-gas detector with a built-in sampling pump is recommended.