1.Detection method is different
Gas detection alarm using the probe directly exposed to the air in the air or sample environment for testing. The gas analyzer is the measured gas (sample gas) through a special way into the instrument to be measured, and then lead the instrument venting.
2. The control conditions are different
Gas detection alarm instrument does not have the sample gas technology and technical conditions of the adjustment and control part, it also does not consider the existence of sample gas environment conditions, directly to the test.
Gas analyzer internal supporting a set of gas system and external supporting equipment to form a more complete set of chemical process, gas analyzer internal sample of the working conditions for all-round adjustment and control to achieve the normal stability of the sensor work Purpose, which is the gas analyzer can get accurate measurement data guarantee.
3. The operation of the whole process is different
Gas detection alarm in the application, only the instrument placed in the measured atmosphere, the instrument can display the value. The gas analyzer must be carefully introduced into the instrument, and then the technical conditions of the strict adjustment, such as temperature, pressure, flow, etc., only when the operator will adjust the instrument until the realization of a stable chemical process, to get Accurate measurement data. And the data obtained before it is incorrect and must be discarded.
4. In the detection process, the interference factors to consider the different ways to consider
Gas detection alarm is the sensor directly placed in a large ambient atmosphere measured, the instrument structure design and in the actual use of the detection process does not take into account the presence of interference in the atmosphere of the factors, and do not have to exclude all kinds of interference factors Designing ability. The gas analyzer in the design selection and use of detection, we must take full account of the impact of various internal and external factors, and, to be carefully excluded one by one, the only way to ensure the accuracy and authenticity of the test data. Otherwise, inadvertently ignoring a certain factor, the test is not allowed and can not be accepted.