Navigator Controls Contact Us The Navigator system is Graham’s signature, award winning, computer control system for integrated process control. The Navigator enables operators to monitor and control all machine functions and features. It’s built intuitively, with a display scheme designed for easy navigation. The system is engineered specifically for extrusion control and includes a Windows-based, industrial PC connected to field I/O for precise control. The slim, color touch panel provides a robust operator interface. Navigator Controls: often imitated, never duplicated.