J.P. Instruments EDM 760 Pilots Guide - Manual (Page 22)

the procedures defined in your aircraft engine manual. If you tap the LF
button, the digital display will toggle between displaying the peak EGT or
the number of degrees below peak.
If you lean too much, the EGT will drop and the engine will be operating
lean of peak.
I5 6 0 I4 5 2
S T E P L F
_
%
M A X
_
J P I
1 2 3 4 5 6 T
° F L R P
S E T
E G T
E D M - 7 6 0
L e a n i n g R I C H o f P e a k
P E A K
E G T
1 2 3 4 5 6 T
3 0 0
4 0 0
5 0 0
C H T
c o l u m n o f
L E A N E S T c y l i n d e r
f l a s h e s
E G T o f t h e
L E A N E S T c y l i n d e r
d i s p l a y e d w i t h t h e
w o r d " S E T "
d o t i n d i c a t e s
L E A N E S T c y l i n d e r
a n d f l a s h e s
" P E A K E G T "
d i s p l a y e d f o r
t w o s e c o n d s
w h e n p e a k i s
f o u n d
Lean of Peak Leaning with GAMI injectors
To use the “lean of peak” method, tap LF and then immediately
hold both STEP and LF until you see
LEAN L. Once you begin
leaning (flashing dot) you cannot change leaning methods. You may
toggle back to
LEAN R by holding both buttons again.
In the “lean of peak” method the columns will invert with the first
to peak progressing down from the top of the display. The inverted
column scale is 5° per segment below peak. As you continue to
lean past peak the dot of the each successive cylinder will flash as it
peaks. The peaks will be shown as an inverted bar graph; when
the last cylinder peaks its column will flash. The analog display is an
inverted bar graph showing where each cylinder peaked. When the
LF button is held the display will show the delta fuel flow between
Page 18 Engine Data Management