TECHNOLOGY SPOTLIGHT
YSI Ammonium and Nitrate Sensors for C1D2-Rated Areas The VARiON® Plus 700 IQ H is YSI’s new Class I, Division 2-rated sensor for measuring ammonium and nitrate in hazardous locations. The VARiON is an online ion selective electrode (ISE) probe and works directly with IQ SensorNet for process monitoring and control. The IQ SensorNet is the only networked water quality monitoring system available that can measure ammonium and nitrate in C1D2-rated areas. The VARiON is certified for use in CID2 areas and conforms with National Fire
Protection Association (NFPA) standard 820, groups A, B, C, D, and T6, to reduce the potential of fire or explosion in hazardous locations in wastewater treatment facilities. The sensor is reliable and a safer option for measuring nitrate and ammonium in aeration basins that are not preceded by a primary settling tank. The VARiON provides accurate, reliable data and the reference system is stable over long periods, measuring ammonium, nitrate, and a compensation electrode (potassium or chloride) simultaneously. Individually user-replaceable
electrodes have a typical lifetime of 18 to 24 months and a one-year warranty, minimizing maintenance efforts and ownership costs. The VARiON is compatible with IQ SensorNet, YSI’s network of online controllers, and sensors designed for process monitoring and control. The IQ SensorNet can now measure pH, oxidation reduction potential (ORP), ammonium, nitrate, potassium, chloride, dissolved oxygen (FDO H), total suspended solids (TSS [ViSolid H]), and temperature in CID2 hazardous locations. The IQ SensorNet continuously monitors water quality throughout the wastewater treatment process, increasing operational efficiency, lowering operating costs, and improving performance. q
Technology Spotlight is a paid feature sponsored by the advertisement on the facing page. The Journal and its publisher do not endorse any product that appears in this column. If you would like to have your technology featured, contact Mike Delaney at 352-241-6006 or at mike@fwrj.com.
64 August 2022 • Florida Water Resources Journal
