Range / purity
Your analyzer choice may depend on measurement range
Gas analyzers can measure gas concentration from complete purity to tiny trace levels , depending on the sensing technology and configuration used .
Ensuring that the gas concentration stays within a certain level is essential for applications which control processes for safety and efficiency . Additionally , gas purity measurements need to ensure the required purity by measuring ultra-trace levels of contamination .
% ppm ppb / ppt
Percentage
These analyzers measure gas concentration based on its parts per hundred ratio in the gas mixture . This is often a large-scale measurement .
Parts per million
Sometimes referred to as trace-level measurements , ppm results are used for many applications , including combustion control , and emissions monitoring .
Ultra-trace
Gases in medical or semiconductor applications must have a very high level of purity , so it is necessary to measure even the smallest impurities .
P9