An adhesive mixing plant was installed and ultrasonic sensors were used for the level in the tanks. Problem areas were Condensation forming on the ultrasonic probes in the mixing tanks. The packaging machines have tanks with adhesive in which are open to atmosphere, therefore causing the adhesive to change colour, which affected the photoelectric level sensors sensitivity. These problems were quickly overcome before we continued with the integration of the Siemens S7 PLC with Adroit SCADA. The project was challenging with the high speed packaging machines consuming the adhesive quickly, therefore our system had to be reliable, as a machine without adhesive would cause a large production loss.