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Davis-Standard improves control capabilities

The new DS-eVue mid-range controller from Davis-Standard is said to offer added versatility for most plastics extrusion processes. The controller replaces Davis-Standard’s Mesa III and existing HMI (Human Machine Interface) systems and is also an option for customers previously requiring the Harrel Tubetrol controller.

Improvements over the Mesa include a solid state hard drive which offers a slimmer package and flexible mounting options; a 381mm widescreen HMI; a temperature auto-tuning option; an FDA-21 Part 11 ready for medical systems; and an optional wireless LAN connection.

In addition, the DS-eVue has an increased data tag count, enabling it to control larger systems than the Mesa. Other notable features include a graphic overview, reports, trending, event log and data collection, a web interface for two concurrent users, remote diagnostic capabilities, multi-level programmable security and email notifications.

John Clemens, electrical engineering manager for Davis-Standard Extrusion Systems, comments: “This system allows the operator to make set-point changes, monitor line status, create and download recipes, and conduct supervisory functions such as trending and reporting. The solid state hard drive and FDA-21 Part 11 upgrades are significant advantages.”

The DS-eVue is powered by the Windows operating system with anti-virus, zip and PLC interface programs as needed, and SCADA foundation software. Davis-Standard offers customised applications programs for controlling and monitoring the extrusion process.

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