Welcome to EnviroDIY, a community for do-it-yourself environmental science and monitoring. EnviroDIY is part of WikiWatershed, a web toolkit designed to help citizens, conservation practitioners, municipal decision-makers, researchers, educators, and students advance knowledge and stewardship of fresh water. New to EnviroDIY? Start here

Reply To: Hydros CTD-10 Regularly Dropping Out (-9999)

Home Forums Environmental Sensors Hydros CTD-10 Regularly Dropping Out (-9999) Reply To: Hydros CTD-10 Regularly Dropping Out (-9999)


    @James_NZ – are all your setups the same?.

    Have you got a spare setup that can be debugged in a local setting? (office with terminal connected)

    I have a similar setup with an RS485 and SDI-12 on one system – but I maintain a test system to verify it before I deploy it.


    I have done work to ruggedize it. All I can do is describe how I do it.