The Eco ADCP has a couple of dedicated sites where you can find information about how to work with the Eco.
The Eco WebApp is the first point of call for any Eco-related questions and actions. Here is where you configure and deploy the instrument, and download and process the data. The WebApp holds the video manual and all Eco FAQs.
If you can't find the information you need on the web-app, please post your question in the Eco community forum. This creates a store of questions that other users can search as well.