The Two in One UV Analyzer family from ECD

ECD Apr 06, 2016 No Comments
ecd analyzer uv

Two-In One UV Analyzer Family for Disinfection Measures Ammonia,

Nitrate or COD In Water or Waste

ecd 1 Water engineers responsible for municipal or industrial water and wastewater will find the new versatile single or dual parameter CA-6 UV Family of Spectroscopic Analyzers from Electro-Chemical Devices (ECD) can monitor any two selected parameters in separate measurement ranges for ammonia, nitrate or chemical oxygen demand (COD 254 nm). ECD's CA-6 UV Analyzer Family provides a highly accurate, reliable and economical on-line sampling system that's designed with UV absorption sensor technology to monitor harmful pollutant parameter levels.  The CA-6 Analyzer's sensors are available in multiple parameter measurement ranges: Ammonia from 0-10 mg/L or 0 to 1000 mg/L; Nitrate from 0-30 mg/L, 0-100 mg/L, or 0-250 mg/L and COD 254 nm from 0-200 mg/L or 0-20,000 mg/L. Each model is easy to order with either a single parameter or dual parameters in the factory pre-calibrated measurement ranges.  Everything needed comes in one box ready to install and start-up.  A single technician can complete the installation process in 15 minutes by connecting the sample, waste and cleaning solution (reagent) lines and powering up the analyzer.  Accessing the chosen factory pre-calibrated parameter data or customizing an analysis routine is easily done with user-friendly intuitive menus and a touch screen display. Each parameter is analyzed based on the measurement of UV absorption in the sample.  The absorbance of the solution or gas is measured through a quartz flow cell at a specific wavelength using a long-life Xenon lamp and photo detectors.  The absorbance level is directly related to the sample concentration according to Beer-Lambert's Law, which correlates the attenuation of light to the properties of the material through which the light is traveling. To measure Ammonia, a reagent is added to the liquid sample and converts the ammonia to gas for measurement by the CA-6's UV sensor with a fast Fourier transform algorithm that provides a measurement equivalent to the level of Ammonia.  A water temperature probe performs automatic temperature compensation for high accuracy. In measuring the Nitrate found in turbid, organic rich wastewater, the CA-6 UV's advanced self-cleaning design relies on the strong absorption of UV light by the chromophore N-O, which again is according to Beer-Lambert's Law. Automatic internal linearization compensates for high concentrations of Nitrate.   A second wavelength and detector compensates for dirty matter in the flow cell to ensure high accuracy and reliability. For the measurement of COD 254 nm, the CA-6's sensor detects UV light absorption by unsaturated organic molecules at the 254 nm wavelength.  COD 254 nm levels in river water and municipal wastewater are closely correlated to the permanganate and dichromate water standard methods.  Measurement is extremely responsive, less than 10 seconds and requires no reagents or calibration solutions. The versatile CA-6 Analyzer is designed with four alarm relays.  A single 4-20 mA analog output is included with 12-bit resolution.  RS232 communications are provided for data download to a CSV file, with an optional RS485 MODBUS communication module available.  

Direct Fluoride Monitoring Solution for Semiconductor Fabrication Wastewater Treatment

ECD Jul 07, 2014 No Comments

ecd pic

Dual-Channel Transmitter Monitors Both Fluoride and

pH for Reliable Accuracy

  Electronics manufacturing engineers and plant technicians in need of a Fluoride measurement solution will find the new Fluoride Monitoring System from Electro-Chemical Devices (ECD) provides a highly accurate turn-key analyzer solution for semiconductor wastewater treatment processes. The next-generation Fluoride Monitoring System from ECD is designed with its new advanced dual-channel T80 Universal Transmitter and precision S80 Intelligent pION Sensor for Fluoride and S80 Intelligent pH Sensor. Together, they provide highly accurate and reliable measurement of Fluoride for electronics industry manufacturing plant wastewater treatment. The T80 Transmitter provides dual-channel comparison of measurements or inputs, which can improve the accuracy of Fluoride measurement. For example, Fluoride ions are affected by changes in the pH of a solution. The correct measurement of Fluoride levels is only possible if pH is also measured and appropriate compensation algorithms are processed. The S80 pH Sensor and the dual-channel T80 Transmitter easily handles these types of measurement comparisons.             The efficient use of Fluoride is an important part of the semiconductor industry's fabrication process. Effective etching of semiconductor wafers is dependent on Fluoride usage. Such processes produce wastewater and effluent contaminated with Fluoride, which must be accurately analyzed for effective treatment. ECD's S80 pION Sensor for Fluoride combined with the T80 Transmitter are well suited for this task.  ECD's S80 pION Sensor for Fluoride's specific (pIon) electrode cartridgemeasures the activity of "free" Fluoride ions in solution in concentrations from 0.02 to 2,000 ppm over a pH range from 5-8 pH. They operate over a wide temperature range of 0 to 80º C. The S80 Immersion or Insertion Sensor is designed with a 0.75-inch MNPT compression fitting as the process connection and allows a variable insertion length to accommodate installation in pipe tees, flow cells or through tank walls. The S80 Retractable Sensor is designed with a 1-inch MNPT ball valve, a 1-x-0.75 inch reducer and a 0.75 inch MNPT compression fitting to provide the process connection. In addition to Fluoride measurement, ECD's replaceable electrode cartridges for the S80 pION Sensor for Fluoride can also be selected to measure parameters including other specific ions, pH, ORP, dissolved oxygen, conductivity and resistivity. These cartridges provide specific industrial process measurement solutions, and they are constructed in a variety of configurations and materials to support diverse industries.