The B-scan software option for the Epoch XT digital ultrasonic flaw detector is available. The addition of the software increases the versatility of the instrument for many applications, including the monitoring of internally corroded storage tanks, pipes and other critical structures. The software provides fully encoded, scanned thickness measurements with cross-sectional images. The Epoch XT displays either a full B-scan view during scanning, or can display a split A-scan and B-scan view for measurement verification. The B-scan option provides readings at specific scan locations and the ability to automatically save A-scans for minimum thickness data or when triggered by alarm conditions.