Difference between gas analyzer and gas detector

1. The structure of the gas detectors of the instrument structure is relatively simple, including only the probe (sensor) and the sensor signal conversion circuit. The gas analyzer not only has a probe (sensor) internally, but also a complete gas line system that introduces the sample gas to the inside of the instrument and leads to a complete gas system where the instrument is vented or recovered.

2. Detection methods Different gas detection alarm devices use the probe to be directly exposed to the measured air or sample gas environment for detection. The gas analyzer introduces the gas to be measured (sample gas) to the inside of the instrument through a special method, and then draws the gas out of the instrument.

3. Control methods for measurement conditions Different gas detection alarm devices do not have the adjustment and control part of the sample gas process technology conditions. At the same time, it does not consider the environmental conditions in which the sample gas exists.

A complete set of gas path systems and external supporting equipments inside the gas analyzer form a complete set of chemical process flow. The gas analyzer internally adjusts the working conditions of the sample gas in order to achieve the normal and stable work of the sensor. Purpose, this is a guarantee that the gas analyzer can obtain accurate measurement data.

4. How to complete the whole process of measurement When using different gas detection alarms, simply place the instrument in the measured atmosphere and the instrument can display the values. The gas analyzer must carefully introduce the sample gas into the instrument, and then strictly adjust the technological conditions, such as temperature, pressure, flow, etc., and can only be obtained after the operator adjusts the instrument until a stable chemical process is achieved. Accurate measurement data. The data obtained before this time is incorrect and must be abandoned.

5. In the detection process, the way to eliminate the interference factors is different. The gas detection alarm is measured by placing the sensor directly in a large ambient atmosphere. The instrument structure design and the actual use of the detection process do not consider the atmosphere There are no interference determination factors and there is no design capability to eliminate various interference factors. The gas analyzer must fully consider various internal and external factors that affect the measurement when designing the type and use of the test. It must be carefully removed one by one. Only in this way can the accuracy and authenticity of the test data be ensured. Otherwise, one of the influencing factors is inappropriately ignored and is not allowed or acceptable for the test.

6. Accuracy of Data Different gas detectors can only provide qualitative analysis results and coarser quantitative analysis data. The data displayed by such instruments cannot withstand scrutiny and cannot perform error analysis (since only the analysis data deviates from the true value is very small. Only by referring to the "error" can it be impossible to determine (determine) important process improvement adjustment measures as accurate analysis data. The gas analyzer is a kind of strict measuring instrument. It can provide very accurate data in the quantitative analysis. This kind of data can be used as the basis for the improvement and improvement of gas production and safety production. It can be used to guide and conduct production. Management, quality management and business management. Even this kind of data can be used as an important basis for judicial criminal investigation work, use it to litigate and determine the right and wrong boundaries.