N2125A/6A/7A and N2136A Calibration Modules User’s Guide 3Contents1 Calibration Module OverviewCalibration Module Models / 6What Is a Calibration? / 9When to Perform a Calibration / 9Inspecting the Package Contents / 10Safety and Regulatory Information / 11Cleaning and Handling the Calibration Module / 122 Using the Calibration ModulesCalibrating an Infiniium UXR Oscilloscope / 14Additional Equipment Required / 14Calibration Module Components / 15Applying Torque / 16Calibration Time / 17Calibration Procedure / 17Calibrating an M8131A Digitizer / 19Calibration Time / 19Calibration Procedure / 19