ABB extends microwave consistency sensor portfolio

ABB has updated its KPM KC7 Microwave Consistency Transmitter portfolio with a larger flow-through sensor to fit process pipes with a diameter of up to 16”, giving more customers the choice to measure the total consistency of mixed pulps with a flow-through sensor. The technology leader has also launched a redesigned insertion type with a new dual-plate sensor.

Both of the device options will be used in the stock preparation area of mills, which feeds the wet end of the paper machine. The enlarged flow-through model, extending from a previous maximum of 12”, expands ABB’s market reach to those with wider diameter pipes that previously could only use insertion types, but that can now consider both.

For mills opting for the insertion style, the dual-plate design is the only one on the market with an optional temperature sensor that can be retracted for abrasive and unscreened processes, a feature also available with the flow-through model. The parallel antennas avoid microwave reflections in the pipe and generate a self-cleaning effect, removing the risk of obstructions and therefore increasing uptime and reducing maintenance costs compared to other devices.

Microwave measurement is becoming more popular due to its low calibration requirements, high accuracy, and ability to measure total consistency independent of process variables and fibre properties. Unlike optical and sheer force technologies, KPM KC7 is unaffected by both process changes, such as flow speed, pressure and turbulence, and variations in pulp species, fibre length and freeness.

“ABB individually verifies each sensor before implementation to ensure high accuracy, said Karin Hermansson, Product Line Manager at ABB. “With this update to fit larger pipes, reduce obstructions and ensure smooth temperature readings for even the most difficult processes, we can now meet the most diverse requirements in the complex world of papermaking.”

The application usage extends across paper, tissue, board and pulp producers, from recycled pulping to end of machine stock preparation, and can be used for municipal and industrial wastewater. KPM KC7 is particularly good for users of recycled raw material and pulp and paper mill teams that prefer to measure and control total consistency with microwave technology.

SourceABB

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