Every papermaker using online sensors should have a robust sensor correlation strategy, which should audit the sensor correlation processes and methods in order to improve the accuracy of quality measurements. Correct standard operating procedures should also be established.
Athnos and her team have helped dozens of mills align measurements from online sensors and the quality control lab.
As Avery Bolton, quality process engineer at Domtar Hawesville, and a customer of ABB’s Sensor Correlation Service, says, “A strong correlation program with ABB is critical to operations that trust sensor measurements to make real-time decisions affecting the machines and production. Operators rely on scanner measurements to determine when they are ‘On Grade’. When there is little difference between the scanner and lab results, we can make quick decisions with confidence.”
Using online sensors with proper sensor correlation improves quality measurement accuracy, and can produce significant savings in raw material usage and improved efficiency by reducing off-spec product and energy consumption.
A thorough sensor correlation program is essential for all papermakers to ensure product quality and business profitability.
Martin Fairbank has worked in the pulp and paper industry for over 30 years and is currently a consultant and technical writer.
This article originally appeared in the Summer 2020 issue of Pulp & Paper Canada.