Controlling precisely temperature with adopting new PID algorithm
Protecting overpower and false connection
Displaying parameters (T/C setting, degree F/C indication, operation tatus, Soft, etc)
Detecting errors (alarm, voltage, heater short, triac short)
Correcting Temperature ( difference and slope compensation)
Algorithm to prevent triac breakage (improve cooling efficiency of heat sink, adopt high power triac)
Protection function against wiring error, heater short, overpower, overcurrent
TC-880 uses cartridges.