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Application Note: Water Treatment SCADA Upgrade
March 28, 2022 | Application NotesMunicipal: Water / Wastewater / LandfillAbstract
A water treatment company in north-central PA had an 11 year old Foxboro PAC control system (Schneider Electric’s Eurotherm company made these controllers for Foxboro). The municipality has two treatment facilities about three miles apart, connected via Fiber and using Profibus communication protocol. Approximately 2010, Foxboro did a large upgrade and installed two T940 controllers (one at each facility) with three 2500 series I/O racks at one facility and two at the other – approximately 350 I/O points. There was also a pair of radios bringing in a single tank level at one facility.
Problem
Unfortunately, two major problems occurred — the tank radio had taken a close proximity lightning hit and been destroyed, and Foxboro no longer supported the PAC series due to obsolescence. The company had been quoted $350K to replace the entire system with new technology, and were challenged by the steep price.
Solution
At the end of the project, the customer had a working, updated system that was easier to support, and estimated that they paid $150K for the total system, instead of the approximately $350k that they would have had to pay with a Rockwell Allen-Bradley solution, which would have required replacing all of the controllers, writing new code, and doing new panels.
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March 24, 2022 | Product NewsCASE STUDY: MUNICIPAL SCADA TELEMETRY UPGRADE
March 15, 2022 | Product NewsWith the continual growth of cites and demand for infrastructure increasing from this growth ELPRO Technologies was selected to provide a wide area digital telemetry and SCADA network for a growing municipality in Australia with outlying regional townships. Read the case study HERE.
Thayer Scale Solutions for the Precise Delivery of Ingredients
March 14, 2022 | Product NewsIn cheese conversion, shredded cheese and anti-clumping agents (such as corn starch, potato starch, powdered cellulose, or calcium sulfate) are metered into a rotating coating drum wherein individual cheese strands are uniformly coated to prevent particle agglomeration in packaging.
Getting the desired ratio application of an anti-clumping agent to shredded cheese is difficult.
Thayer Scale’s Hygienic Weigh Feeders (HWF), built in accordance with the design principles of 3-A, NSF, and USDA, accurately measure the rate of flow of shredded cheese based on the direct measurement of mass and velocity variables. This flow rate data is then communicated to a Loss-in-Weight feeder such as the Thayer Scale LWF-SC-V Sanitary Vibratory Feeder.
A specialized Thayer Scale control algorithm, Scale Location Compensation (SLC), synchronizes the delivery of the anti-clumping agent with the varying cheese flow, ensuring that the anti-cake agent is delivered both in the correct proportion, as well as in the proper phase of the sometimes intermittent, but constantly fluctuating cheese profile. Thayer Scale’s proprietary, easy-to-clean Loss-in-Weight feeder technology controls aeration and defeats poor flow properties of anti-clumping agents to assure precise, reliable delivery to a single-point or uniformly across a wide band.
Thayer Scale instrumentation seamlessly integrates with the sites’ modern process software facilitating automatic, real-time analysis of base cheese measurement and the delivery of the anti-clumping agent.
Overall, the use of Thayer Scale equipment reduces product quality instances and improves housekeeping with a low, long-term cost of ownership.
Benefits include: reduced sanitation time – quick disassembly without hand tools to optimize sanitation effectiveness. And tolerance to high pressure, high- temperature sanitation evolutions without measurement drift or compromising measurement sensitivity.
Assistance with CGMP, HACCP, and HARCP program compliance.