Performance Verification Statement for the JFE AROUSB AND AROW-USB Dissolved Oxygen Sensors

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Ref. No. [UMCES] CBL 2016-010
ACT VS16-01
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Figure I. Response of JFE AROUSB (sn 0091) to changing dissolved oxygen concentrations at 30.6 oC and S=34.43.
Top Panel : Time series of instrument readings and Winkler reference samples drawn at level of sensor foil in well-
mixed test tanks. The decay in instrument signal under high DO exposure likely reflects bubble contamination of DO
sensor foil. Bottom Panel : Corresponding offset between instrument reading and Winkler DO reference sample
during the trial. Dotted line represents zero offset from reference. Offsets beyond 2 mg/L are excluded.