Manual
Shock Cooling
-30 
-40
CLD 
CLD
Dot indicates fastest 
cooling cylinder
The display will pause at each measurement for four seconds in the 
Automatic indexing mode. (The four second indexing rate can be changed. 
See “Pilot Programming” on page 37.) In the Manual indexing mode, tap 
the STEP button to advance to next measurement. Only the 
measurements for the options that are installed will be displayed; 
uninstalled measurements will not appear.
Section 3 -  Operating Procedures   
Diagnostic Testing on Startup and During Flight
When your EDM-760 is first turned on, all digits light up for a few 
seconds, permitting you to check for non-functional segments. Then each 
column is self-tested in sequence while the EDM-760 tests internal 
components, calibration and integrity of the probes. If a problem is found, 
it will be displayed as OPEN PRB or CAL ERR, followed by the name 
of the probe or channel. During flight, probes are constantly checked for 
inconsistent or intermittent signals. A faulty channel or probe encountered 
during start-up or during flight will be deleted from the sequence, 
producing a missing column or blank digital data.
Modes
The EDM-760 has three different operating modes: Automatic indexing, 
Manual indexing and LeanFind. When you first turn on the power the 
EDM-760 starts in the Manual indexing mode, but will enter the 
Automatic indexing mode after a few minutes. The Automatic indexing 
mode provides you with engine monitoring information for the majority of 
flight conditions. To adjust the mixture, use the LeanFind mode. And to 
display specific measurements, use the Manual indexing mode. In both the 
Automatic and Manual indexing modes the analog display shows a bar 
graph of EGT and CHT for each cylinder and the TIT, if installed (or Oil 
temperature, if it is installed and TIT is not installed).
For Your Safe Flight Page 11










