PRO-SONIC can be implemented in any PLAST- CONTROL computer. Three ultrasonic sensors are used for non-contact measurement, existing control dampers, proportional valves, iris diaphragms or frequency controlled blowers can be taken over and further used. Replacing an existing IBC control system often makes sense, as today's systems are non-contact, much more precise and respond faster. This saves edge trim and minimizes scrap. PLAST-CONTROL engineers recommend using a new, fast-acting control damper in the retrofit, which is available in two different sizes.