YSI 6136 Turbidity Sensor
- Temperature compensation provides greater accuracy
- Wiped optics field-proven for fouling prevention
- Compatibility with all YSI optical port sondes provides system flexibility
|606136||6136 turbidity sensor with self-cleaning wiper|| |
|607200||6072 turbidity standard, 12.4 FNU (ProDSS & EXO); 12.7 NTU (6136), 1 gallon|
|606144||6144 optical probe wiper pad kit, 20 pack of wiper pad strips|
|607300||6073G turbidity standard, 124 FNU (ProDSS & EXO); 126 NTU (6136), 1 gallon|
|607400||6074 turbidity standard, 1010 FNU (ProDSS & EXO); 1000 NTU (6136), 1 gallon|
|600-01||600OMS V2 Sonde with temperature/conductivity sensor|| |
|Usually ships in 3-5 days|
|608000||6080 turbidity standard, 0 FNU (ProDSS & EXO); 0 NTU (6136), 1 gallon|
|606625||6625 optical wiper kit, 2 pack, for use with YSI 6150, 6136, 6131, & 6132 optical probes|
The YSI 6136 sensor can be used in combination with those YSI sondes that have optical ports - 600 OMS, 6820, 6920, 6600, or 6600 EDS (Extended Deployment System) - and a YSI 650 MDS handheld display-logger. Make surface as well as vertical profile measurements. In addition, the YSI 6136 in combination with one of the YSI data-logging sondes can be used for unattended continuous monitoring or integrated with data collection platforms for real-time data acquisition.
- Range: 0 to 1000 NTU
- Resolution: 0.1 NTU
- Accuracy: +/-2% of reading or 0.3 NTU, whichever is greater
- Warranty: 2 years
The probe optics for this sensor are very stable even over long periods of time. The long-term drifts are usually <3%. The standards are only certified for +/-2% so the drift may even be lower.
The most common reason for turbidity drift is the use of contaminated standards. To avoid this, make sure to clean the probe, sonde bulkhead, and sonde guard before use. Also, place the sensor in clear water first and inspect the water for debris.
No, there should be 2-3 inches between the head of the sensor and the bottom of the cup. If the sensor is touching or close to the bottom, it may reflect and cause incorrect readings.
Yes, but only a slight reflection will occur. If concerned, a high quality flat black spray paint can be used to spray the internal surface of the sonde weight.
If using a 650, highlight "clean optics" in the upper right logging box and press enter. If using with a computer, press the "3" key to activate the turbidity wiper.
In The News
Researchers at Penn State University find that dredging projects may reduce fish diversity, according to a release . Dredging is usually undertaken to remove detrimental sediment from a waterway.
The investigators looked at 15 sites along the Allegheny River in Pennsylvania, comparing sections that had been dredged to undredged ones. They found reduced fish populations and less variety in aquatic life in areas where dredging occurred.
The researchers say the dredging process increases turbidity, which alters fish-foraging ability. High sedimentation can also affect spawning, so species that are tolerant come to dominate ecosystems in which dredging took place.
Image: A clamshell dredge in action (Credit: U.S.Read More
Two autonomous underwater vehicles are drifting through Lake Ontario, monitoring a slew of environmental metrics, according to a release from New York Sea Grant. The high-tech equipment is recording data on fish productivity, food web changes and algae levels.
Each AUV weighs 42 pounds, is six and a half feet long and has a slew of sensors, including side scan sonar and 10-beam Doppler. Mapping capability complements collected parameters like temperature, turbidity, pH and levels of oxygen and phosphorus, among others.
The research is made possible through the Cooperative Science Monitoring Initiative between the US and Canada called for under the Clean Water Act of 1972.Read More
Wind probably isn’t the first thing that people think of when considering causes of poor water quality, but sediment disturbances caused by the combination of shallow waters and high winds are threatening the health of Iowa’s Storm Lake.
Although Storm Lake looks picturesque from a distance, the resuspension of sediment is affecting water clarity and exposing harmful nutrients in the water.
Led by Clayton Williams and John Downing, professors in Iowa State University’s Department of Ecology, Evolution and Organismal Biology, a research team has begun monitoring the lake to determine the causes and potential solutions to the lake’s sediment issues.Read More