Liquid Analysis

Liquid Analysis

Liquid analysis instrumentation measures chemical and electrochemical properties of fluids in real time, turning “what is in the liquid” into actionable process variables. Common parameters include pH/ORP, conductivity, dissolved oxygen, turbidity and suspended solids proxies, nutrient indicators, and disinfectant residuals. These measurements complement flow, level, pressure, and temperature by directly tracking reaction progress, separation efficiency, and water quality.

Portfolios typically range from individual sensors to complete measuring stations with transmitters, fittings, and sample handling for in-line, immersion, or flow-through installation. Digital sensor platforms such as Memosens provide interference-resistant signal transmission and support a broad set of parameters including pH, ORP, dissolved oxygen, conductivity, and disinfection, with additional options such as turbidity, nitrate, and SAC. 

The primary benefit is tighter quality control with fewer lab delays. Stable pH and conductivity control reduces chemical consumption and improves neutralization and CIP performance; dissolved oxygen monitoring supports biological treatment and aerobic fermentation; and disinfection residual measurement helps balance microbial control against byproduct formation. In product processes, rapid feedback reduces off-spec production and improves yield by enabling earlier corrective action.

Modern analyzers and transmitters emphasize maintainability and traceability. Features such as sensor diagnostics, guided calibration, and modular electronics simplify standardization across measurement points and reduce turnaround time during sensor replacement. Integration through common industrial communications allows measured values, calibration records, and status alarms to be incorporated into automation and asset management systems.

Typical applications include wastewater aeration control, drinking-water disinfection monitoring, boiler and cooling-water chemistry, food and beverage CIP, pulp and paper bleaching stages, and chemical production where acid/base control is critical. Selection considers required accuracy and response time, temperature and pressure limits, fouling potential, cleaning and hygienic design, and regulatory reporting requirements.

Engineered Equipment Company, a leading supplier of specialized industrial equipment.