Do you know the difference between a "gas detector" and a "gas analyzer"?
1. Different functions
The gas detector is an instrumentation tool for gas leakage concentration detection, which bepertence to the safety protection instrument.
A gas analyzer is a process analysis instrument used to measure gas composition and an instrument for detecting gas composition. Such as detection of smoke components.
2. Diferente estrutura
The structure of the gas detector is relatively simple, only including the gas probe (gas sensor) and the sensor signal conversion circuit part.
3. Diferente detecção métodos
The gas detector uses the probe to directly expose to the measured air or sample gas environment for detection.
The gas analyzer introduces the measured gas (sample gas) into the instrument for measurement through special methods (pump sampling, in-situ sampling, etc.) , e então leads it out of the instrument for emptying or reciclagem.
4. Different detection accuracy
Gas detectors can only provide qualitative analysis results and relatively rough quantitative analysis data. The data displayed by this instrument can withstand scrutiny and can be analyzed for errors. (Porque o "error" can only be talked about when the analytical data desvias from the true value very little), portanto, it it cannot be used as an accurate analytical data to determine (determine) important process improvement ajuste medidas. No entanto, it can be used as a qualitative detection, such as the basis for making a signal alarm when a certain concentration is atingido.
A gas analyzer is a strict measuring instrument that can provide very accurate data when performing quantitative analysis. This kind of data can be used as the basis for industrial production, gas production, safety and environmental protection improvement and improvement, and use it to guide and carry out production management, quality management and enterprise management. Este tipo de dados podem ser usados as an importante base para produção tecnologia, judicial avaliação, produto qualidade supervisão, científico e tecnológico arbitragem, ambiental proteção emissão inspeção, etc., e até uso it to determinar os limites de certo e errado em processos judiciais.
5. O controle métodos para a medição condições são diferentes
O gás detector faz não projeto o ajuste e controle parte de o técnico condições de a amostra gás, e ela faz não considera o ambiente condições de a amostra gás, e diretamente detecta ele.
A complete set of gas circuit system and external supporting equipment inside the gas analyzer constitute a relatively complete process flow of physical methods and chemical methods. The gas analyzer internally adjusts and controls the working conditions of the sample gas in all directions to ensure To achieve the purpose of normal and stable operation of the sensor, this is the guarantee that the gas analysis instrument can obtain accurate medição dados.
6. A operação métodos para completar o todo medição processo são diferentes
Quando o gás detector está em uso, apenas lugar o instrumento em o medido atmosfera, e o instrumento pode exibir o valor.
The gas analyzer must carefully introduce the sample gas into the instrument, and then strictly adjust the technical conditions of the process, such as temperature, pressure, flow, etc., only when the operator adjusts the instrument até a a stable analysis of the chemical process can be obtained. Accurate measurement data.
7. Diferentes maneiras para eliminar interferência fatores
O gás detector é medido por colocar o sensor diretamente em o grande ambiente atmosfera. A estrutura design de o instrumento e o uso de o detecção processo do não considere se há há fatores que interferem com a medição em o grande ambiente atmosfera, e há há não projeto para eliminar vários interferência fatores. habilidade.
When designing, selecting and using a gas analyzer, various internal and external factors that affect the measurement must be fully considered, and they must be carefully eliminated one by one. Only in this way can the accuracy and authenticity of the detection data be ensured. Otherwise, improperly ignoring a certain influenceng factor is not allowed and unacceptable for testing.
