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It can be time-consuming having to constantly check the iron content in drinking water manually, with the continuous monitoring of quality
parameters just as essential for drinking water procurement and water production in the food and pharmaceutical industries, as it is for seawater desalination or the treatment of wastewater.

For many applications, the iron content in water is an essential measured value – it causes deposits, turbidity or affects the taste of food. Thus, water with a high iron content is automatically filtered, but the purified water is then usually tested manually by taking a sample on site.

The Bürkert Online Analysis System with the MS06 iron analyser for photometric iron measurement can help in the measurement of iron content, by being able to fully automatically check the iron content in drinking water.

This includes several measuring points and allows long maintenance intervals – creating cost-effective water analysis. The water analysis experts at Bürkert Fluid Control Systems offer a compact, fully automated solution for such applications, that enables continuous flow injection analysis (FIA) based on photometric iron analysis via an iron analyser.

If required, the system can be expanded by several sampling points at low cost, and additional sensor modules can be used for flexible measuring of all relevant water parameters, and thus increase process reliability.

Like all sensor cubes, the iron sensor can be easily integrated into a Bürkert Online Analysis System – for example as a robust IP65 Type 8906 control cabinet solution.

The water analysis in the compact control cabinet is then customised to meet user’s needs and includes pH value, chlorine and chlorine dioxide, ORP value, turbidity and conductivity measurements, all in addition to iron.

All sensors are either maintenance-free or have long maintenance intervals and can thus be operated in a resource-saving way.

Compact iron measurement

The iron analyser determines the iron content in the range from 0 to 2 mg/l; larger detection ranges are available on request. To do this, process water is automatically sampled in cycles at up to four different sampling points and measured with the sensor by means of flow injection analysis.

Cleaning, calibration, adding of reagent, mixing and photometric analysis all run automatically. The result can be stored in the system or on the higher-level PLC using a data logger.

The optimised measuring device requires only 50 μl for each reagent per measurement. This means that one storage bottle is sufficient for approx. 5,000 measurements. The self-calibrating system allows measurement intervals of 60 min between measurements, and the operating pressure is 1 bar.

Automated cleaning and EDIP-compatible communication (Bürkert’s own Efficient Device Integration Platform) allows quick installation and easy integration into process automation.

This sponsored editorial is brought to you by Burkert Fluid Control Systems. For more information, visit burkert.com/en .

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