TIT 2
Carburetor Temperature
20
25
CRB
CRB
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 40.) 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-760/790 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-760/790 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-760/790 has three different operating modes: Automatic
indexing, Manual indexing and LeanFind. When you first turn on the
power the EDM-760/790 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
For Your Safe Flight Page 13
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