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New analyser helps monitor water quality

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Municipal water engineers concerned about Chromium VI in drinking water will find the CA6 Colorimetric Analyzer from Electro-Chemical Devices provides precise and dependable measurement to ensure compliance with local, state and federal drinking water safety standards.
The US Environmental Protection Agency (EPA) describes chromium is an odorless and tasteless metallic element that is found naturally in rocks, plants, soil and volcanic dust, and animals. The most common forms of chromium that occur in natural waters in the environment are trivalent chromium (chromium III) and hexavalent chromium (chromium VI).
ECD’s Model CA6 Colorimetric Analyzer is an on-line sequential sampling analyser that is designed to monitor chromium VI in drinking water. It can be configured to measure chromium VI in three separate ranges: 0 to 1.0 mg/L, 0 to 10.0 mg/L or 0 to 50.0 mg/l.
The CA6 Colorimetric Analyzer’s sequence of sampling, analysis and results processing is performed and repeated using colorimetric methods for high accuracy and reliability. This technology relies on an LED light source and a heated colorimetric cell designed for measuring trace amounts of manganese, iron and other analytes in water.
The CA6 analyzer is lightweight and easy to install. Weighing less than 40 pounds, it can be wall mounted or simply set on a bench using the optional bench top stand. After the sample, waste and reagent lines have been connected to the analyzer and provided with power, the CA6 will begin its preprogrammed analysis sequence.
The CA6 offers up to four separate channels (optional) each from a separate sample point. A simple, user-friendly menu structure and touchscreen interface makes it easy to access information or customize analyses.
Relying on photometric differential absorbance, the versatile CA6 Analyzer monitors chromium VI levels and over 20 other common parameters including: aluminum, iron, manganese, silica, nitrogen, iron and sulfate. It operates at a wide temperature range of 5-50°C and offers repeatability of ±2% on the absorbance value if the turbidity <80 NTU and drift of ±2% per month on the absorbance measurement.