Home PhotoGallery Emax Miscellaneous
Cirrus GTS N122MG


I assume you have double clicked on the Emax icon and the program has opened up. Below I will give you some preliminary instructions on how to use this program. Much more information can be found in the Help file and you should make sure you read this.


To read in a single Log File go to File/Open in the menu. Alternatively you can find the Log File you want using the Microsoft Explorer and then drag and drop this file onto the Emax window. You will then see a plot of the EGT temperatures.


Example of  EGT chart and CHT with a Fault.


Note that by double clicking on the page you will obtain Help. By clicking on the other buttons you will then see other information plotted for you.


Each chart image can be zoomed by dragging the left mouse key and restored by rapidly dragging the left mouse button from  bottom right to top left (or use the Unzoom button). The right mouse key enable you to drag the curves across the page.


Note that by positioning the mouse cursor on a curve you will obtain information about that point. Similarly placing the mouse cursor on a legend (top right) the particular curve will be highlighted.


In the case of the EGT or CHT plots, if you place the mouse cursor carefully on a position on one of the curves and click with the left mouse button the curves will be renormalized to that value - this can be useful sometimes in comparing one curve with another.


If you go to the menu item Extras/Combinations you can set up your own choice of what to display. In addition you will find a button marked Custom Chart. If you press this, you will save your choice and then the button will display this set up for any Log File you read in.


The button will add labels to the chart indicating nearest airfields and beacons in the corresponding positions. Repeated clicking on this button expands the distance range for these airfields but eventually cycles back to the initial distance.


performs a simulation of the Emax page on the Avidyne MFD. You can change the speed and you can pause and manually move to a specific time using the sliders at the bottom. To leave this page you must first be running (check ) and then you can stop the simulation with . Note that the button marked OAT Units, Absolute and Normalise function when you click on them.


The Sherlock Holmes button opens up another small window to enable you to find out information on the GAMI lean test (see the Help).



This takes you to a new page showing map information about your route. Running the mouse cursor over the route will give you information such as ground speed and track (course). If you have loaded the high-resolution coast data you can click on the appropriate button to plot with this data. It should be self evident how this page works.



Example of Map Page


Finally, and most importantly you should familiarise yourself with the button.


See Example of Log Page


This opens up another window in which you can save all you Log Files. Click on the Add button and then find the folder where you keep your Log Files. Highlight all the ones you want and after pressing OK they will all be read in to the program. (Beware that any corrupted files will create an error message and so you will need to remove them from you folder and try again). Once this is done you will see a complete listing of all your files. Clicking on the top of each column automatically reorders them according to value. A right mouse click on any line takes you to plots for that Log File.


opens up a plot showing the maximum values of important quantities against Flight number (useful for spotting changes to your engine over time). Clicking on any point on a curve will take you to the plot for that item.


Example of Trend Chart showing Fuel Flow Problem


There is much much more that this program can do, but the above tips should be enough to get you started. I hope you will find the program useful in diagnosing potential engine problems before they become serious.


Emax Analyzer Introduction