With the increasingly strict national standards for toxic and harmful gas emissions, it is strictly forbidden for enterprises to exceed the gas emission standards and the toxic gas content in the workplace of employees. Require enterprises to install it in the workplacegas detector, real-time monitoring of gas concentrations. Of course, the purchase and use of instruments is also an important prerequisite for ensuring the normal and stable operation of instruments.
1. Pay attention to the concentration measurement range of the gas detector:
All kinds of toxic and harmfulGas detectorAll have a fixed detection range. Accurate measurements can only be made if the measurement is completed within the measuring range. If the measured value is out of the measurement range for an extended period of time, it can cause permanent damage to the sensor. For example, in the 0-100ppm range, if the sensor is used in an environment above 100ppm, it can completely burn out the sensor. Therefore, before purchasing an instrument, be sure to confirm your measurement range.
2. Determine the application occasion:
Different types are selected for different industrial environmentsgas detector。
A) Fixedgas detector: widely used in industrial installations and production processesgas detector。
(1) It can be installed at specific detection points to detect specific gas leaks.
(2) It is more suitable for the continuity and long-term stability required for fixed detection in terms of technology and process.
(3) It should also be selected according to the type and concentration of the gas on site. At the same time, they should be installed where a particular gas is most likely to leak. For example, the most effective mounting height of the sensor should be selected based on the specific gravity of the gas.
B） portablegas detector: Because the portable instrument is easy to operate, small in size, built-in sampling pump, fast detection speed, high accuracy, can be carried to different places for testing, and can be used after turning on. As an instrument, it is increasingly used in various factories and health sectors.
3. Generally speaking, each sensor corresponds to a specific detection gas, but there is no onegas detectorIt is absolutely effective. Therefore, when choosing a gas sensor, you should try to understand the detection interference of other gases on the sensor to ensure its accurate detection of specific gases.
4. Pay attention to the service life of various sensors:
variousGas sensorBoth have a certain service life, that is, the service life. Generally speaking, in portable instruments, the lifespan of LEL sensors is about 3 years; The lifespan of electrochemical-specific gas sensors is generally 2-3 years; The lifespan of the electrochemical sensor depends on the dryness of the electrolyte, which can be extended by sealing it in a low-temperature environment if not used for a long time.