YSI6820EDS/6920EDS multi parameter water quality monitoring instrument

NegotiableUpdate on 02/24

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Nature of the Manufacturer: Producers

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Overview

Unique design, can be directly placed in water bodies for long-term online monitoring with a five parameter instrument.

Product Details

YSI6820EDS/6920EDS multi parameter water quality monitoring instrument

YSI6820EDS/6920EDS多参数水质监测仪

The YSI 6820EDS/6920EDS conventional five parameter water quality monitoring instrument is a uniquely designed instrument that can be directly deployed in water bodies for long-term online monitoring. This conventional five parameter instrument can be used independently or partially integrated into the system as a five parameter instrument for online automatic water quality monitoring standard stations.

RS-232 and SDI-12 interfaces: can directly connect to computers, most data acquisition platforms, water quality automatic monitoring stations, and telemetry systems
Directly placing it into the water body for real measurement avoids parameter changes caused by pumping, while also saving investment in increasing water collection equipment
Provide accurate dissolved oxygen accuracy in harsh polluted environments
long service life
Clean covered sensors: including turbidity, dissolved oxygen, and acidity/alkalinity, significantly extending maintenance cycles
Less maintenance is required during the deployment period, making it an ideal tool for long-term field monitoring
Fast pulse dissolved oxygen sensor: YSI unique technology, readings are not easily affected by contamination, effectively extending maintenance cycles
Dissolved oxygen sensors have no flow rate dependence, do not require stirring, and can truly reflect the supersaturation phenomenon of stationary water bodies
The turbidity probe is equipped with an automatic cleaning brush, which effectively eliminates bubbles, reduces the impact of contamination on measurement, and is not affected by external light interference
Non volatile memory: data will not be lost due to power failure and can store up to 150000 readings
EcoWatch data analysis software: real-time monitoring, data processing, statistical analysis, report generation, both Chinese and English versions are free and randomly gifted
Equipped with one ion sensor interface, optional ammonium nitrogen, nitrate nitrogen, or chloride ion sensors; Depth sensor optional, redox potential sensor optional
Except for the depth sensor, all other probes can be replaced, calibrated, and maintained on site

The YSI 6820EDS/6920EDS conventional five parameter water quality monitoring instrument is equipped with an automatic cleaning brush, which can clean the sensor to prevent contamination and effectively extend the delivery cycle - the typical 28 day delivery can be extended to 90 days, while also saving monitoring, calibration costs and labor costs.

YSI 6820EDS/6920EDS sensor specifications
parameter	measuring range	resolution	accuracy
dissolved oxygen (% air saturation)	0 to 500%	0.1%	0 to 200%: ± 2% of the reading or 2% air saturation, whichever is greater; 200 to 500%: ± 6% of reading
dissolved oxygen (milligrams per liter)	0 to 50 milligrams per liter	0.01 milligrams per liter	0 to 20 milligrams per liter: ± 2% of the reading or 0.2 milligrams per liter, whichever is greater; 20 to 50 milligrams per liter: ± 6% of the reading
conductivity²	0 to 100 milliSiemens per centimeter	0.001 to 0.1 milliSiemens per centimeter (depending on the range)	Reading ± 0.5%+0.001 milliSiemens per centimeter
temperature	-5 to+60 ℃	0.01℃	±0.15℃
PH value	0 to 14	0.01	±0.2
Oxidation-reduction potential	-999 to+999 millivolts	0.1 millivolts	± 20 millivolts
salinity	0 to 70 ppt	0.01ppt	± 1.0% of the reading or 0.1 ppt, whichever is greater
Depth (shallow water)	0 to 9 meters	0.001 meters	± 0.02 meters
Depth (reclaimed water)	0 to 61 meters	0.001 meters	± 0.12 meters
Breathable water level	0 to 9 meters	0.001 meters	0-3 meters: ± 0.003 meters; 3-9 meters: ± 0.018 meters
turbidity¹	0 to 1000NTU	0.1NTU	± 2% of the reading or 0.3NTU, whichever is greater⁴
rhodamine¹	0-200 micrograms per liter	0.1 micrograms per liter	± 5% of the reading or 1.0 μ g/L, whichever is greater
Ammonium nitrogen/ammonia nitrogen³	0 to 200 milligrams of nitrogen per liter	0.001 to 1 milligram of nitrogen per liter (Depending on the range)	± 10% of the reading or 2 milligrams of nitrogen per liter, whichever is greater
nitrate nitrogen³	0 to 200 milligrams of nitrogen per liter	0.001 to 1 milligram of nitrogen per liter (Depending on the range)	± 10% of the reading or 2 milligrams of nitrogen per liter, whichever is greater
chloride³	0 to 1000 milligrams per liter	0.001 to 1 milligrams per liter (Depending on the range)	± 15% of the reading or 5 milligrams per liter, whichever is greater

parameter	measuring range	detection limit	resolution	linear
chlorophyll¹	0-400 micrograms/liter chlorophyll-a; 0-100 RFU	0.1 μ g/L chlorophyll-a⁵	0.1 μ g/L chlorophyll-a; 0.1 RFU	R²＞0.9999^⁶
1. The working depth of all optical probes is up to 61 meters; 2. It can provide data outputs for specific conductivity (corrected to 25 ℃), electrical resistivity, and total dissolved solids simultaneously. These parameters are calculated based on the conductivity equation according to the Standard Methods for the Examination of Water and Wastewater industry standards; 3. Only applicable to freshwater, with a working depth of up to 15.2 meters; 4. Use AMCO-AEPA polymer standard; 5. Determine the values of marine algae and chlorophyll-a through extraction; 6. Continuous dilution related to Rhodamine WT (0-8 micrograms/liter)

	YSI 6820EDS			YSI 6920EDS
Applicable water bodies	Freshwater, seawater or sewage
temperature	-5 to+50 ℃
Communication Port	RS-232 and SDI-12
Memory	384K， Can store 150000 readings
software	EcoWatch software (suitable for Windows 95/98/2000/NT/ME/XP)
External power supply	12V DC
built-in power supply	not have			Eight 5th alkaline batteries
size	Diameter 7.3 centimeters, length 34.3 centimeters			Diameter 7.24 centimeters, length 45.7 centimeters
weight	1.5 kilograms			1.8 kilograms (including battery)