Dynon Avionics EMS-D10 Pilots Users Guide - Manual (Page 30)

EMS-D10 Pilot’s User Guide 6-1
6. EMS MONITORING
This section describes just a few of the ways to use your EMS-D10 to monitor the operation of your engine.
Engine Leaning and Power
The engine monitor provides multiple methods to assist you in setting the
mixture of your engine for various functions. The first, and most basic, is to just
watch the EGT display as the engine is richened or leaned. You can watch for
the EGTs to peak and then richen or lean as desired from that point. The engine
monitor also includes a leaning function to automate this process.
To activate leaning mode, enter the EMS menu and press the LEAN button.
With this mode activated, the label "Lean Mode" is displayed underneath the
EGT/CHT bars to clearly differentiate it from the normal operating mode. In
split EGT/CHT mode, the label “LN” is displayed at the upper left of the
EGT/CHT display. Additionally, the absolute EGT temperatures (indicated on
the right side of the graph) are replaced with new data as each cylinder peaks.
As each cylinder peaks, the absolute temperature is replaced by a number
indicating the cylinder peak sequence, followed by the difference from its peak
temperature. Given this information, you may set your mixture more accurately
to achieve a given EGT delta value on either the rich or lean side of peak EGT.
After the last cylinder peaks during a leaning operation the difference in fuel
flow between the first and last cylinder peaks is displayed. If the fuel flow
decreases, it is shown as Lean of Peak. If fuel flow increases, it is shown as Rich of Peak. In the above example, cylinder 3’s EGT
peaked first and cylinder 1’s EGT
peaked last. There was a total increase
of 0.5 GPH in fuel flow between the
first and last cylinder peak, indicating
rich-of-peak operation.