The DC90 Pro allows users to configured multiple Trend Graphs containing up to 12 tags each. Each tag can be independently scaled and users can change the vertical axis of the graph by selecting the corresponding tag. During the data collection process, the DC90 Pro will open all configured trend graphs. Users can switch between graphs just by clicking a button. In addition, each graph has the feature of allowing the user to scroll back in time to view previously collected data, without interrupting the data collection process.