Conventional chart recorders are used by maintenance personnel as a diagnostic tool for troubleshooting and problem analysis; these recorders are typically expensive, cumbersome to move from location to location and set up in the mill, and can monitor a limited number of signals concurrently

Over 200 signals where wired from the Bar Mill shop floor to a Level 2 VAX computer via an intermediate OPTO22 to allow continuous monitoring of selected signals (e.g., looper height, bus amps, motor loads, descale pressure, etc.)

Cost savings thru improved accuracy in problem diagnosis

Reduced mill down time thru improved preventive maintenance

Cost savings thru a reduced number of conventional chart recorders necessary to cover the maintenance requirements of a large mill

Simplified technician training, reduced monitor setup errors, and reduced recorder maintenance and malfunctions