YSI 6150 ROX Dissolved Oxygen Sensor
Features
- Utilizes luminescence lifetime detection of oxygen to provide the most stable measurements possible
- Microprocessor-controlled measurement system reduces drift and improves accuracy
- Easy to replace, durable membrane with a usable life of one year
| Image | Part# | Product Description | Price | Stock | Order | |
|---|---|---|---|---|---|---|
 | 606150 | 6150 ROX optical dissolved oxygen sensor with self-cleaning wiper | Request Quote | Usually ships in 3-5 days | ||
| Image | Part# | Product Description | Price | Stock | Order | |
|---|---|---|---|---|---|---|
 | 606625 | 6625 optical wiper kit, 2 pack, for use with YSI 6150, 6136, 6131, & 6132 optical probes | $59.00 | In Stock | ||
 | 600-01 | 600OMS V2 Sonde with temperature/conductivity sensor | Request Quote | Usually ships in 3-5 days | ||
 | 606144 | 6144 optical probe wiper pad kit, 20 pack of wiper pad strips | $46.00 | In Stock | ||
 | 606155 | 6155 optical DO membrane kit | $175.00 | In Stock | ||
The ROX optical sensor uses an integrated wiping system to provide anti-fouling in the most hostile environments. Durable mechanical features include a non-corroding titanium wiper shaft, replaceable wiper shaft seal, and a new switch controlled wiper parking system to prevent mis-parking.
The ROX sensing system is based on the luminescence lifetime method. This method was chosen because it offers the most stable, repeatable and sensitive method for oxygen detection, thus reducing sensor drift and prolonging deployment times.
YSI's optical DO membrane differs from the traditional electrochemical sensor membrane, requiring fewer steps for installation and less maintenance. ROX membranes will last for one year and are made of a durable material that is unlikely to be damaged in the field. The ROX sensor eliminates stirring dependency that was required of most traditional polarographic sensors.
- Range: 0 to 500%; 0 to 50 mg/L
- Resolution: 0.1%; 0.01 mg/L
- Accuracy (0 to 200%): +/-1% of reading or 1% air saturation, whichever is greater
- Accuracy (200 to 500%): +/-15% of reading
- Accuracy (0 to 20 mg/L): +/-0.1 mg/L or 1% of reading, whichever is greater
- Accuracy (20 to 50 mg/L): +/-15% of reading
- Warranty: 2 years
In The News
VIMS study shows fish flee Chesapeake Bay hypoxia
A Virginia Institute of Marine Sciences study found that near-bottom fish in the Chesapeake Bay tend to move out of areas nearing hypoxia, according to a VIMS release. The study, which has spanned 10 years, found that biomass decreased in the middle of the Chesapeake Bay during mid-summer. That part of the bay typically experiences hypoxia due to algal blooms fed from nutrient runoff. A total of 48 sampling trips from 2002 through 2011 have shown that, when dissolved oxygen concentrations dip below 4 milligrams per liter, many near bottom fish leave the area. Analysis was limited to demersal, near bottom, fish and the same trends were not confirmed for fish higher in the water column.
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Mississippi Gulf Coast fish kill expected to continue
Officials at the Mississippi Department of Marine Resources say that a recent fish kill along the state’s Gulf coast is the largest they’ve seen, according to KVUE . The fish kill has brought dead crabs, eels and stingrays ashore. Beachgoers were disturbed by the large-scale kill, but experts explained that conditions this year were to blame. With higher temperatures and low dissolved oxygen near the sea floor, creatures that live there were more likely to be affected. The fish kill, beginning July 1, was the first of 2013 for the area. It was expected to last several more days, but lessen over that period.
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A Lesson in Persistence: Taking On Cyanobacteria in Florida
As we hear more and more about algal blooms of different kinds across the United States, teams of scientists are working hard to ensure that they don't become our new normal. One project in Florida is taking a multi-disciplinary approach to the problem—including genetic analysis. The team's work is part of a full-court press in Florida recently, making a serious push to understand what is triggering more frequent blooms. Jose Lopez, Ph.D. , of Nova Southeastern University , the primary investigator on the genetic analysis portion of the project, spoke to EM about the project and his work on it. “This is a very good project,” explains Dr. Lopez. “We're excited about it, and it's a lesson in persistence.” Dr.
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