TCU TEMPERATURE CONTROL UNIT

The Tystar TCU Temperature Control Unit is an adaptive, three-mode digital controller that manages furnace heater temperatures during recovery, ramping and steady state operation without operator intervention. Providing automatic calibration of the furnace tube over the desired temperature range, the TCU controls three or five independent heater zones and has built-in redundancy in case of thermocouple failure. Initially, it operates in a learning mode and stores all optimized control criteria in memory. The TCU interfaces directly with SCR firing circuit and automatically calibrates both the primary and back-up thermocouples.