IS_267280-001 0611 - Rev B - Orion Star A113 and Star A123 DO Meter Instruction Sheet

This document provides instructions for using the Thermo Scientific Orion Star A113 Benchtop and A123 Portable Dissolved Oxygen (DO) meters. It includes contact information, descriptions of display icons, and setup and operational guidelines. Users are guided on power source setup, DO probe preparation, calibration, and interpreting display icons and readings. Calibration can be done using water-saturated air or the Winkler titration method, with instructions for switching measurement modes.