Analyzers, in-situ sensorsand samplers

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Experts in liquid analysis

Sodium and silica measurement with CA76NA and Liquiline System CA80SI

CA76NA sodium analyzer • Uses the potentiometric measuring principle with a separate reference pH electrode for precise temperature compensation and optimum pH value adjustment. • Offers up to 6 sampling channels for perfect process adaptation. Typical applications • In the boiler

Liquiline System CA80SI • Helps ensuring the required water quality. Detailed logbooks facilitate documentation of the measured values. • Delivers measurement results that are directly comparable to laboratory measurements thanks to its standardized heteropoly blue method. • Can be fitted with up to 6 sampling channels allowing for online measurement at all important control points and easy adaptation to any kind of application. • Is easily upgraded to a complete measuring station by connection of up to 4 Memosens sensors.

Silica and sodium are two core parameters for the water quality in power plants. The maximum silica content permitted in boiler feedwater is often contractually agreed on between turbine and boiler suppliers and power plant operators. Increased silica and sodium concentrations can lead to deposits on turbines, boiler walls and heat exchangers that have an adverse effect on a power plant‘s efficiency and can even cause damages of the expensive plant equipment. In addition, accurate silica and sodium measurement provides an early indication of condenser leakages or exhaustion of the ion exchanger bed.

• At the ion exchanger outlet • In the feedwater make-up line after the condenser Measuring ranges • Silica 0 to 500 µg/l (ppb) SiO 2 50 to 5,000 µg/l (ppb) SiO 2 • Sodium 0.1 to 9,999 µg/l (ppb) Na

CA76NA

Liquiline System CA80SI

Chromate measurement with Liquiline System CA80CR Typical applications

For industrial wastewater, regulations stipulate close monitoring of specific parameters. In case of chromate, electroplating companies and tanneries operate their own wastewater treatment to reduce the contaminants to levels that allow the discharge into municipal wastewater treatment plants. Here, the standardized diphenyl carbazide method of Liquiline System CA80CR ensures compliance with discharge regulations and the analyzer’s detailed logbooks provide continuous documentation of the chromate values.

• Optimizing cleaning capacity of industrial wastewater treatment plants • Outlets of electroplating companies and tanneries • Monitoring of membrane filtration Measuring ranges • 0.03 to 2.5 mg/l Cr(VI) • 0.2 to 5.0 mg/l Cr(VI)