Experience report: Belt scales

Verifiable SysTec weighing terminals are used in the Boskalis Environmental conveyor belt scale. The robust weighing electronics are used for billable weighing of contanimated soils in a recycling plant in Alkmaar, the Netherlands.

Efficiency and precision are key for Boskalis Environmental's soil recycling plant. For this reason, the contanimated trays are weighed on a calibratable conveyor belt scale before they are fed into the cleaning process. This is the only way to ensure accurate billing to the customer.
For the weighing electronics for the belt weigher, the choice fell on the legal-for-trade IT3 weighing terminal from SysTec. With its robust stainless steel housing, the compact system is specially designed for outdoor use and has already proven itself in numerous belt scale applications.
The belt scale has a tachometer unit: The signals from the speed sensor and the belt scale are transmitted to a transmitter. This calculates the belt speed as well as the conveying capacity and flow rate.

Another special requirement: The IT3 weighing terminal from SysTec is connected via PROFINET to a PLC system that controls the plant.