2-1S E C T I O N T W OOperating the SystemNow that you have made all the necessary connections (and loaded yoursoftware) you are ready to operate your system. The heart of the ScanningInstrument is the compact, scanning head. The ATD Sheet head moves alongthe track at approximately 150mm/sec. The ATD News head moves alongthe track at approximately 8in./sec. After a measurement, the scanning headuploads the data to the computer via RS-232 communications.This section covers instrument calibration, sheet loading and alignment, andmeasurement procedures.Refer to your software documentation or on-line help for informationregarding software operation.Section Contents• Calibrating the ScanningInstrument ........................................ 2-2• Sheet Loading and Alignment.......... 2-3• Taking a Measurementwith the ATD Sheet Instrument ........ 2-5• Taking a Measurementwith the ATD News Instrument ........ 2-6