In places where hazardous gases are frequently generated, gas leakage may pose a threat to personal safety and affect the safety production of enterprises, so it is necessary to conduct gas testing at all times. However, when faced with a wide variety of gas detectors, how do enterprise purchasers choose instruments that meet their needs? What aspects should we pay attention to when choosing instruments?

1. Clearly define testing requirements

   The first step in choosing a gas detector is to clarify what gas is being detected? In what environment is it used? What style of instrument and other accompanying functions are needed. Otherwise, there may be a big mistake of buying an oxygen detector instead of an ozone detector, which not only delays the process but also causes unnecessary economic losses.

   The types of gas detectors chosen vary depending on the industrial environment.

   Fixed gas detector: It is mainly used in industrial equipment and production processes, and can be installed at specific detection points to detect specific gas leaks. Its detection principle is more suitable for the characteristics of continuous and long-term stability required for fixed detection, and attention should be paid to selecting according to the type and concentration of gas on site.

   For open production spaces, Chicheng Electric independently develops and produces multiple fixed gas detection alarms, covering all points, lines, and surfaces to solve gas detection problems in industrial sites.

   Portable gas detector: sensitive detection, easy operation, compact size, convenient to carry to different production areas, with triple alarms of sound, light, and vibration, effectively ensuring the safety of workers and the integrity of production equipment.

   When choosing a gas detector, one must also consider the airtightness and openness of the environment.

   Closed space: such as reaction tanks, sewers or other underground tunnels, underground facilities, tunnels and other work environments. Before personnel enter, they must undergo testing. Adopt the principle of "ventilation first, testing later, and operation later".

   Open places: such as open workshops, portable gas detectors can be worn with you because they can continuously, real-time, and accurately display the concentration of toxic and harmful gases on site.

2. Understand the operating conditions of the usage environment

   All kinds of gas detectors have strict requirements for the on-site environment, generally speaking, temperature -20 ℃~60 ℃, humidity 0-95% RH, pressure 80-120Kpa, etc., including strict requirements for dust, flow rate, etc. Because other impurities in the environment can have a significant impact on the detection results, leading to unforeseeable losses. Therefore, when purchasing a gas detector, it is necessary to provide a clear description of the operating conditions of the usage environment to facilitate manufacturers in providing corresponding solutions.

   Chicheng Electric will provide pre-sales services such as on-site inspections and customer demand statistics, and provide customized solutions for customers based on actual application scenarios to meet the different environmental conditions of users.

3. Understand the on-site safety situation

   In general, there are mandatory requirements such as explosion prevention for the installation and use of gas detectors on site. The coal, petroleum, and chemical industries have stricter requirements for explosion protection, requiring instruments to be explosion-proof and have explosion-proof certification. Other environments may require gas detectors to have environmental certification or measurement instrument licenses and other documents.

4. Understand the functional requirements for use

   The general function of a gas detector is to detect the concentration of toxic and harmful gas leaks, and to trigger alarms. But users also need the instrument to have functions such as signal output, current output, digital signal output, voltage output, and switch output. Some users may also require gas detectors to be linked with external devices such as solenoid valves and fans, or can be networked for real-time monitoring, remote control, alarm positioning, etc. These need to be fully considered when choosing a gas detector.