The oppositions style devices and method null in order to decrease the negative impact of the pollution material which is used for the device or the technique which is sensitive to the moisture

摘要

A counterflow device adapted for an analyzer engaging a gas stream and having a sensor for measuring a component of that stream. Because at least one element disposed between the gas inlet and gas outlet of the sensor typically emits unwanted impurities, the device diverts a portion of the gas stream as a counterflow directed toward the impurity-emitting element or elements. The counterflow enters the outlet without contacting the sensor of the analyzer.