EWViewer


click to see enlarged view

EWViewer gives you a global view of all source and consumed energy interval data across your entire campus or facility. It provides instant access to current and historical interval data, allowing you to find actionable information within your energy systems. You can quickly monitor operational patterns, compare current and historical performance, and uncover problems and inefficiencies that are wasting energy and money.

You Can't Manage What You Don't Know About

Your Building Automation Systems (BAS) and other energy systems are generating a huge amount of data, most of which gets thrown away. In fact, about 98% (yes, 98%) of the data is typically discarded. You need all of that data, and you need to see it in combined views to perform diagnostics that go more than skin deep and turn up actionable information. With EnergyWitness™, data is collected through EWDataCollector, and stored in EWDataWarehouse, to give you a holistic view of your operations through EWViewer.

It's instant access to every one of the thousands of operational control points and measurements throughout your facility, taken every 15 minutes, allowing you to view performance over the past day, week, month, year, or any other time interval. By standardizing all data sampling to 15 minute intervals (even energy costs so you can see real-time pricing), you get a consistent view. A single chart with multiple related trend lines (from one or more sources) makes sense when the data is from consistent, time synchronized intervals. Data is presented graphically for instant recognition of potential problems that require investigation and correction.

Diagnose at the "Speed of Thought"

Uncovering a problem is a of a stream of consciousness process. Once you see your operational data, you can easily recognize abnormal behaviors or undesired fluctuations. But to diagnose the problem, you need more than that—you need to overlay other system components for that time period, zoom in on the problem area, and be able to backtrack over time to find the root cause. And we mean the real root cause so you can start fixing problems instead of just treating symptoms. EWViewer puts all that data at your fingertips. You have it now, not an hour from now, or tomorrow. Your investigation and issue identification happens at the speed of thought—a process that's orders of magnitude faster (that's not an exaggeration!) than relying on trend logs.


Data Tree: partial list showing chiller data---note data hierarchy and tabs for other views.


Zoom View: close-up of Delta T chart—note ability to scroll in both directions while in zoom view.


Printed Report: actual data values shown—graphs and Excel export also available.


Property Box: shows details of tonnage calculation for primary chilled water loop.

EWViewer Highlights

  • Graphical View: The main window provides you with a graphical view of your energy system. The graphs show data points at 15 minute intervals over whatever time period you have chosen (days, weeks, months, etc.).
  • Data Tree: The Data Tree organizes the data so you can get at it fast. You can create multiple, redundant views, perhaps one based on system (chiller, cooling tower, air handling system, primary and secondary cooling loops, Delta Ts, etc.) and another based on location (building, floor, department, etc.). Each Data Tree will allow you to drill down through its hierarchy to just the data you need. This allows monitoring tasks to easily be assigned to the energy and control engineers in charge of that area of your campus or facility.
  • Drag and Drop Trend Lines: Viewing or overlaying new data trends from the Data Tree is as simple as drag and drop. Just drag it onto the graph window and up comes your new data—instantly. Since all trend lines are available all the time, you never need to start trending all over again just to add one that was missing.
  • Blinding Speed: The EWViewer displays and manipulates trends in just seconds, which enables the grouping of trend lines to diagnose and identify operational issues. A one week history with eight different trend lines can be assembled in a second. That's 5,600 separate intervals that you can display and evaluate in just a few seconds.
  • Zoom View: Once you see something in the graph window that warrants a closer look, you can zoom from week view to see just a day or two. Use your mouse to select the area in question and EWViewer will instantly give you as much detail as you need both horizontally (time) and vertically (values).
  • Time Period Selection: You can define any number of preset time periods and simply click and choose what you want to see. Again, the graphs update immediately so you can easily move forward and backward in time, continuing your monitoring and analysis.
  • Printed Reports: If you need a printed version of the data you're looking at, it's simple. You can get a printed report showing the graphs or the underlying data values. You can even output the data into an Excel spreadsheet.
  • Saved Charts: Found a particular trend chart of your operation that you want to look at every day as part of your standard system monitoring? Just save the chart and all its elements, data sources, time period, etc. will be just a click away.
  • Property Description: Information about the data being viewed is displayed, such as HEGIS and FAMIS codes. This contains some descriptive information from the control point, but also allows you to add comments of your own.
  • Graph Legend: The legend gives you a color-coded key to each trend line. It's moveable so it will never block important data. You can click on any item within the legend to highlight that line of the graph. There's also a graphics control area to select different characteristics.

Want to Know More?

Seeing is believing. Let our facility and energy system experts give you a demonstration of EWViewer to see for yourself how it can help you see more clearly how efficiently your plant is really operating, and how that can save you hundreds of thousands, even millions, of dollars in energy bills each year. Contact us by phone at 617-744-1091, or by e-mail at info@intdatsys.com.

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