Analyzers for Hardness, Iron & More

Analyzers for Hardness, Iron & More

Online metal analyzers provide continuous or semi-continuous measurement of key inorganic constituents in water and aqueous process streams. Typical parameters include total hardness (calcium/magnesium), dissolved or total iron, and other treatment-relevant species that indicate breakthrough, corrosion carryover, or chemical imbalance. These systems combine controlled sampling with a defined analytical method to deliver stable, trendable results suitable for control and compliance reporting.

The primary benefit is early detection of conditions that lead to scale, fouling, corrosion, and unplanned downtime. Hardness leakage, iron pickup, or related excursions can be identified before deposits form on heat transfer surfaces, membranes, or sensitive equipment. Continuous insight also supports tighter chemical dosing and regeneration strategies, reducing reagent consumption while improving process consistency.

Most installations use automated sample handling with reagent-based colorimetric analysis and photometric detection, or equivalent wet-chemistry techniques optimized for unattended operation. Integrated functions such as automatic calibration checks, drift monitoring, and defined cleaning cycles improve data integrity over long runtimes. Sample conditioning (pressure reduction, filtration, temperature control, degassing where needed) is often a decisive factor for repeatability and fast response.

Integration typically includes analog/digital outputs and diagnostic status signals to support alarming, permissive logic, and maintenance planning. Result validation is strengthened by tracking reagent usage, calibration history, and method-specific diagnostics rather than relying solely on a single measured value. Where process criticality demands it, parallel streams or redundant analyzers can be applied to isolate sampling faults from true process events.

Common applications include boiler feedwater and condensate monitoring, demineralizer/softener performance verification, corrosion control programs, and raw/treated water quality assurance. Industrial utilities, power generation, chemical processing, food and beverage, and municipal water operations use these measurements to protect assets while meeting internal and regulatory limits. When paired with well-designed sample panels and defined maintenance routines, metal analyzers become a reliable backbone for proactive water chemistry management.

Instrumentation and Controls., an exclusive authorized representative of sales and service for Endress+Hauser.