The “CP Control System” or Carbon Potential (CP) Controller was developed specifically to regulate carburization in the heat treatment sector. It works in conjunction with MMI oxygen probes. The thermocouple and sensor outputs from the oxygen probe are fed into CP 402, which uses them to calculate the CP live. The estimated CP is now utilised to control the flow of the fluids used in carburization in order to adhere to the programme specified for carburization. 50 programmes that can be recalled locally or remotely can be stored in a memory.