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YSI for Measuring Dissolved Oxygen


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#1 respect the redhorse

respect the redhorse
  • NANFA Guest
  • Greenville, NC

Posted 23 September 2016 - 05:53 PM

Hi all,

 

I'm a beginning PhD student at East Carolina University and longtime NANFA member. Can anyone recommend a good YSI unit (or other brand) for measuring dissolved oxygen?We were using a YSI model 55, but it's been having a lot of problems and I understand the company has discontinued it. I think we have about $1500 in our budget for a new one.  

 

--Chris



#2 zooxanthellae

zooxanthellae
  • NANFA Member
  • North Carolina

Posted 24 September 2016 - 08:41 PM

Hi all,

 

I'm a beginning PhD student at East Carolina University and longtime NANFA member. Can anyone recommend a good YSI unit (or other brand) for measuring dissolved oxygen?We were using a YSI model 55, but it's been having a lot of problems and I understand the company has discontinued it. I think we have about $1500 in our budget for a new one.  

 

--Chris

 

 

Come Monday, if no one else responds, I'll ask our water sampling guys which model they use. It is definitely YSI but I have never paid that close of attention to it. They may have some recommendations too. 



#3 UncleWillie

UncleWillie
  • NANFA Guest

Posted 26 September 2016 - 08:11 AM

Are there other WQ parameters you are interested in?  Or just DO?  In the past, I've almost always used YSI, but the last few years I've been using strictly Horiba for multiple-parameter readers.  The auto-cal solution (one solution that is used to calibrate all parameters [DO, turbidity, salinity, pH, conductivity]) has really made things a breeze when using a unit for weeks at a time without returning to the lab, or when calibration between each reading is part of your SOP for a particular project.


Willie Pruitt
Chattahoochee River, GA




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