News | May 26, 2010

ABB Expands Potable Water Analyzers With New Colorimetric Monitors

Source: ABB Measurement & Analytics
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The first three new products in the ABB Aztec 600 range of online analytical analyzers for potable water treatment are now available.

Built on ABB's new analytical instrument platform, the ABB Aztec 600 Aluminum, Iron and Manganese colorimetric monitors offer enhanced accuracy with simple operation and maintenance for potable water treatment applications.

The analyzers use an LED and detector to measure the passage of light through a sample. A single precisely controlled piston pump provides all the sample and reagent fluid handling for measurement, mixing and disposal. Measurements are taken before and after color reagents are added to compensate for background color and turbidity. These measurements are compared against the calibrated values to calculate the sample being measured. Automatic two-point calibration enables operators to verify analyzer performance against standards of a known concentration. The Aztec 600 Iron, Aluminum and Manganese analyzers can measure up to six samples per hour.

Accuracy is further enhanced by various self-cleaning abilities to ensure the optical cell and analyzer tubing used for sample measurements remain free of residual particles between each analysis. A patented mechanical cleaning function uses the piston movement to wipe the optical cell with every measurement, particularly important when measuring raw waters where optical contamination can be a real issue. The analyzers also include various user programmable automatic options for cell rinsing and acid and alkali washing.

To maximize the measuring range, the Aztec 600 features automatic sample dilution. This function allows the instrument to be set to automatically adjust to monitor higher levels of samples by using deionized water to dilute the sample.

The analyzers are available in single or multi-stream configurations, enabling operators to use just one device to monitor up to three streams sequentially all with current loop, Ethernet or Profibus outputs.

The Aztec 600 analyzers are also simple to maintain. The piston and optical sensor use air to mix the sample and reagents, eliminating the cost and maintenance associated with mechanical or electrical stirring systems. The inherent product design and auto-calibrating features limit maintenance to an annual task, compared to every three months for some competitive units.

A key benefit of the Aztec 600 analyzers is ease of operation. Front-mounted pushbuttons allow easy device interaction in a familiar Windows® environment. Operation and commissioning are straightforward, with menus presenting options for setting and fine-tuning parameters. Added support is provided by an extensive context-sensitive on-line help feature.

About ABB
ABB is a leader in power and automation technologies that enable utility and industry customers to improve their performance while lowering environmental impact. The ABB Group of companies operates in around 100 countries and employs about 107,000 people. For more information visit

SOURCE: ABB Measurement & Analytics