Performance Verification Statement for Hach Hydrolab DS5X and HL4 Dissolved Oxygen Sensors.
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The Alliance for Coastal Technology (ACT) conducted a sensor verification study of in situ dissolved oxygen sensors during 2015-2016 to characterize performance measures of accuracy and reliability in a series of controlled laboratory studies and field mooring tests in diverse coastal environments. The verification including several months of Laboratory testing along with three field deployments covering freshwater, estuarine, and oceanic environments. Laboratory tests of accuracy, precision, response time, and stability were conducted at Moss Landing Marine Lab. A series of nine accuracy and precision tests were conducted at three fixed salinity levels (0, 10, 35) at each of three fixed temperatures (5, 15, 30 oC). A laboratory based stability test was conducted over 56 days using deionized water to examine performance consistency without active biofouling. A response test was conducted to examine equilibration times across an oxygen gradient of 8mg/L at a constant temperature of.....
PublisherAlliance for Coastal Technologies (ACT)
Series;NrACT VS; 16-05
Essential Ocean Variables (EOV)Oxygen
Best Practice TypeBest Practice
Standard Operating Procedure
CitationJohengen, T.; Smith, G.J.; Schar, D.; Purcell, H.; Loewensteiner, D.; Epperson, Z. Tamburri, M..; Meadows, G.; Green, S.; Yousef, F. and Anderson. J. (2016) Performance Verification Statement for Hach Hydrolab DS5X and HL4 Dissolved Oxygen Sensors. Solomons, MD, Alliance for Coastal Technologies, 59pp. (ACT VS16-05). DOI: http://dx.doi.org/10.25607/OBP-298
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