Employing a precision nitrate ISE electrode sensor with an integral self-cleaning sprayer, the HYDRA nitrate analyzer system is suitable for monitoring the nitrification process in aeration basins at wastewater treatment plants. Measuring the concentration of dissolved nitrate as nitrogen in water, the sensor uses two electrodes to determine the NO3--N concentration: a nitrate ion electrode and a chloride ion electrode. An optional electrode is also available for pH or ammonium measurement. The sensor also detects temperature and the analyzer provides a temperature-compensation calculation for accurate measurement. A datasheet is available at http://www.ecdi.com/downloads/literature/hydra/Hydra_Nitrate_Analyzer.PDF
Electro-Chemical Devices Inc.