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YSI 6130 Rhodamine WT Sensor Request Pricing (please include contact information and instrument of interest) In response to the need for accurate, in situ measurement of Rhodamine WT for water and pollutant tracing, YSI has developed the 6130 Rhodamine WT sensor. The 6130 is a fouling-resistant, wiped sensor designed to seamlessly integrate – using no external interface hardware – with all YSI sondes that contain an optical port: 600 OMS, 6820, 6920 6600 and 6600 EDS (Extended Deployment System). The YSI 6130 provides accurate, in situ measurement of Rhodamine WT in fresh, brackish and sea water, as well as in stormwater and wastewater. The 6130 Rhodamine WT sensor rejects turbidity and chlorophyll interference. Measurement accuracy is further enhanced through correction for the effects of temperature and conductivity-salinity. The 6130 sensor can be used in combination with a YSI sonde – 600 OMS, 6820, 6920 6600 and 6600 EDS.– and the 650 handheld display-logger for making surface measurements as well as for measurements in vertical profile. In addition, the 6130 in combination with the appropriate YSI sonde can be used for unattended continuous monitoring, as well as integrated with data collection platforms for real-time data acquisition. Features and Benefits • Temperature compensated • Turbidity and chlorophyll fluorescence rejection • Wiped optics: field-proven for fouling prevention • Compatible with all YSI sondes with an optical port • Handheld measurements, continuous data-logging, real-time data acquistion Applications • Time of Travel: surface water, groundwater, wastewater • Dispersion and mixing studies • Circulation: lakes, reservoirs, bays, estuaries • Spill mapping and response • Stormwater retention • Wastewater Treatment Facility: hydraulics, performance evaluation YSI 6130 Rhodamine Sensor Specifications Detection Limit 0.5 ug/L Range 0 - 200 ug/L as true dye; 1,000 ug/L as dye tracer* Accuracy 1 ug/L or 5% of reading Depth 61 meters (200 feet) *IMPORTANT: Please read in order to help alleviate some confusion concerning Rhodamine WT and fluorometers in regards to what is being measured and how data is reported. The YSI 6130 sensor has specifications in the range of 0-200 ug/L. Specifically, the specification is 0-200 ug/L as true dye. It is known that manufacturers of similar equipment spec a wider measurement range but neglect to mention it is specified for dye tracer. This is an important distinction to make however. The diffierence is a multiple of 5 and the confusion stems from the fact that Rhodamine WT is sold as stock solution in a 20%WT / 80% carrier solution. The YSI spec of 0-200 ug/L as true dye can also be presented as 1,000 ug/L as dye tracer or as Rhodamine WT tracer. Please click here to view the 6130 specification sheet as a pdf. The growing interest in the development of accurate waste load and assimilative capacity models has increased the need for the accurate characterization of water movement particularly through streams, bays and estuaries. In the United States programs such as National Pollutant Discharge Elimination System (NPDES) and Total Maximum Daily Loads have been a significant impetus behind this interest. Fluorometry using the dye tracer Rhodamine WT, is the principal method by which this work is performed. Until the advent of in-situ Rhodamine measurement systems, dye fluorometry hydrologic measurements were performed exclusively by the analysis of multiple samples physically extracted from the water body from multiple locations as the dye plume was naturally dispersed. Although this method predominates today, and can produce accurate hydrologic data, it is resource intensive, significantly vulnerable to human error and other natural phenomenon, and can be dangerous. As the demand for the quantity and quality of these data increase, investigators have begun to search for alternatives, and have indicated that in-situ, unattended monitoring systems will be the method of choice for the future of dye fluorometry hydrologic measurements. Applications for Rhodamine dye tracing include, but need not be limited to: time of travel (TOT: surface water and groundwater); reaeration studies; dispersion studies; discharge measurements (by dye-dilution methods); waste buildup and flushing in estuaries and bays; wastewater retention and flushing in wetlands; combined and sanitary sewer overflow studies; tracing circulation and stratification in reservoirs; path tracing in karst (cavernous limestone); determination of well-drilling fluid circulation time; irrigation water uptake by plants; tagging and tracing herbicide, and tracing heated water effluents. Although the 6130 sensor can be used with any YSI sonde with an optical port, it is most likely that the 600 Optical Monitoring System (OMS) will be one of the sondes most frequently employed for dye fluorometry. Other physicochemical parameters that will invariably be needed are (in order of importance): temperature, conductivity/salinity and pH (in industrial wastewater applications). There is indication that accurate level measurements may also be desired. YSI's highly accurate vented level sensor – which is available on all aforementioned sondes – will meet this need for fixed-position, unattended deployments, as well as for data collection platform (DCP) integrations. With the availability of multiple water quality parameters in addition to Rhodamine, many end-users will begin to conduct ambient water quality studies along with dye fluorometry hydrologic investigations such as TOT, mixing and dispersion. In cases such as these, one would expect to see preference given to the 6820, 6920 and especially 6600Extended Deployment System (EDS). Parameters likely to be measured in investigations involving dye tracing and water quality are DO, temperature, pH, specific conductance or salinity, ORP, turbidity, depth or level and current speed and direction. Most end-users will utilize the 650 MDS for downloading data in the field, since it is imperative that they know whether or not they have "captured" the dye plume at each location before leaving the field. The 650 MDS in combination with a YSI sonde equipped with the 6130 sensor will also be used for measurements in horizontal and vertical profile, and particularly in lakes, reservoirs, bays and deep rivers during reaeration, dispersion, circulation and mixing studies. The YSI 6130 Rhodamine Sensor in combination with the OMS, 6820, 6920 or 6660 is the ideal solution for accurate, in-situ dye fluorometry in virtually any environment. | |||||||||
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