Instrumentation Maintenance - such as thermocouples, pressure transmitters, process controllers, high-temperature limit controllers, nuclear gauges, level transmitters, digital displays, digital tachometers, bar code scanners, pull cameras, pressure switches, analog circuits, analog feedback systems, digital feedback systems, video operator interface panels, recorders, valve petitioners, differential pressure transmitters, hot slug detectors, video cameras, thickness gauges, laser devices, furnace electrode monitoring equipment, bushing controllers, alarm panels (Panalarms), displacement gauges (hoodwall/oven bridge). Variable speed motor drive electronics such as used in Line Drive, Belt Rollup Drives, Stretch Wrap tension drives, fiberizer drives, over wrap decline conveyor, raw material unloading screw, oven circulation fan drives, exhaust fan drives, batch charger screw drives, and auto bagger feed conveyor drives.