QUICK START GUIDEThe RBRduo³ C.T | uv and RBRconcerto³ C.T.D | uv offer the same features as ourtrusted conductivity, temperature, and depth instruments, plus active antifouling.Four UV LEDs illuminate critical sensor surfaces and control biological growth on theconductivity cell, thus maintaining high accuracy measurements during extendeddeployments in the photic zone.MEASURE THE BLUE PLANETrbr-global.comIncluded with your instrumentUSB-C desktop cable with adaptorO-rings, silicone compound, O-ring removal tool, and reusable desiccantUSB stick containing Ruskin software and documentationCalibration certificatesRBR#0010679revC 11/2023WarningsUltraviolet radiation may pose risk for the eyesWear UV-blocking eyewear of the highest available ratingNever look at the LEDsRBRduo³ C.T | uv, RBRconcerto³ C.T.D | uv4SupportTo access support within the Ruskin app, navigate to “Help” > “Comment onRuskin...”.For technical support, please reach out to support@rbr-global.com, call+1 613 599 8900 (UTC-5), or visit rbr-global.com/support/service.Deployment checklistRBR ships all instruments with new, highest capacity batteries and fresh desiccantcapsules included, and the O-ring installed, so that the instrument is ready for itsfirst deployment.For any subsequent deployment:1. Install new batteries.2. Install fresh desiccant (orange).3. Inspect, clean, replace, and lubricate the O-ring.Note: Always remove the batteries from the instrument during long-term storage!Doing so will prevent internal damage due to battery leakage and/or corrosion.RBR ships | uv instruments with the standard UV power level selected by default andthe sampling speed set to 60s continuous.UV antifouling settings1. If you need the UV power level set to“Low” or “Off” for your deployment,open Ruskin and go to “UVantifouling” > “Power level”.2. At the low power level, you can usethe radio buttons to select either“30s” or “60s” continuous sampling.Note: This selection is not available atthe standard UV power level.The UV LEDs will activate immediately after you enable the deployment.