Analyzers for Hardness, Iron & More

Analyzers for Hardness, Iron & More

Online metal analyzers measure dissolved constituents such as water hardness, iron, aluminum, chromate, and sodium to provide continuous visibility into water quality and treatment performance. These systems typically combine automated sampling with a defined analytical method, producing actionable concentration values rather than intermittent lab snapshots.

Continuous metals monitoring helps protect downstream assets, stabilize treatment chemistry, and support compliance where strict limits apply. Early detection of excursions (e.g., breakthrough from filtration or changes in source-water quality) reduces the risk of corrosion, scaling, taste/appearance issues, and process upsets in water, wastewater, and utility applications.

Many online metal analyzers use standardized colorimetric methods in which reagents react with the target species to form a measurable color. The instrument then measures light attenuation at a specific wavelength photometrically and converts the result to concentration using calibration curves; this approach is designed to align closely with laboratory methods. Reliable operation depends on consistent sample conditioning, including filtration and automated cleaning/backflushing to maintain representative, interference-minimized samples.

Typical applications include drinking and mineral water monitoring to confirm compliance with health- and taste-related limits, as well as process water supervision where contamination can damage high-value systems. Examples include boiler feedwater and cooling-water control, galvanizing and metals processing, and wastewater discharge monitoring where toxic constituents (such as hexavalent chromium compounds) must be controlled and documented.

Selection and deployment focus on matching the analytical method to the parameter, defining the sampling point and conditioning strategy, and planning for reagent logistics and routine service tasks. Modern analyzer platforms often integrate with digital sensor ecosystems for expanded context - enabling combined measurement of supporting parameters while consolidating transmitters, diagnostics, and maintenance practices into a consistent operating model.

George E. Booth Co., an exclusive authorized representative of sales and service for Endress+Hauser.