Mass Measurement


Automated systems for batch weighing

August 2014 Mass Measurement

Batching processes are traditionally controlled by PLCs. However, when high flexibility and consistent product quality is required, a weighing terminal with batch control logic offers a more cost effective alternative. Mettler Toledo’s IND780batch terminal is designed to control gravimetric batching processes and replaces a PLC based system in such applications.

Engineered for batch applications in the pharmaceutical, chemical, plastic and glass industries, the IND780batch provides a standalone terminal for single or multi-scale weighing applications. For more demanding requirements, the system can incorporate predictive adaptive control algorithms for accuracy and throughput.

The overall Batch control solution needs to manage the various types of material transfer onto the weighing platform and weigh each ingredient. The IND780batch terminal is capable of handling the entire batch control process including scales, auxiliary equipment (such as mixers, heaters) and operator control panel interface.

A PLC system can be applied effectively, particularly in instances when the batch process is fixed and does not need a great deal of switching between ingredients and recipes. However, this may not be the best solution for the small to mid-size operation that requires flexibility in their process because of limited resources.

The IND789batch control system is designed to meet any process-based application while maximising productivity and minimising operating costs. It is capable of handling multi-material filling, manual formulation, blending, or dosing, simultaneously on four scales, without the need of an additional PLC and can fill 28 materials per scale, using Mettler Toledo’s patented material transfer control algorithms. High-speed filling, fast update rates and multiple speed capabilities ensure that the target weights are achieved quickly and accurately with extremely precise cut-offs.

The BatchTool 780 PC-based configuration utility simplifies recipe and order creation, track and trace logging, security setup, usage reporting, and configuration back-up and restore. Equipment view screens show system status for advanced diagnostic capability.

For more information contact Peter Anderson, Microsep, +27 (0)11 553 2300, peter.anderson@microsep.co.za, www.microsep.co.za



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