EZ1 Advanced XL, System EZ1 Advanced XL, System combines the EZ1 Advanced XL instrument and installation. The Installation and Introductory Training is an on-site service, conducted by a QIAGEN Service Specialist. It provides the user with training on operation and user maintenance. All travel and labor cost included for Installation. Performance of the installation process is documented on a GMP/GLP-compliant Field Service document.