—A B B M E A S U R E M E N T & A N A LY T I C S | S A F E T Y I N S T R U C T I O N | S I/A Z 2 0/A Z 3 0 - E N R E V. AEndura AZ20 and Endura AZ30Oxygen analyzerMeasurement made easyIntroductionThis manual provides information and instructionsthat will be needed in order to use the AZ20 or AZ30in safety related applications. It is aimed at thoseresponsible for planning, designing, installing,commissioning and maintaining safety relatedsystems.To avoid duplication, many of the standardprocedures are not explained in this document.However, references are made to user guides,installation procedures and maintenanceprocedures with links to the source material.—Endura AZ20 & EnduraAZ30 oxygen analyzer