DAC Worldwide’s 3-Variable Process Control Training System (601-000) is a working, large-scale, fluid process system allowing for hands-on training relating to the measurement and control of process variables including level, pressure, and flow. The device allows for the creation of simple and advanced process loops using common, industrial-quality instruments and controllers. An “open architecture” allows for the integration of alternate instrumentation as needed to address local training needs. Variable demand and supply disturbances can be inserted using solenoid valves in combination with metered ball valves.