J.P. Instruments EDM 700/800/711 Pilots Guide User Manual
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Page 6
Engine Data Management
To change the display of engine temperatures see “Changing the
Alarm Limits” on page 42.
Cylinder Numbers and Dot Index
A row of numbers 1 through 6 and the letter T are the column labels for
the analog display. The 1 through 6 are the cylinder numbers. If the TIT
option is installed, the T denotes the last column is displaying Turbine
Input Temperature (TIT) as a column. If the T is absent and the Oil
temperature option is installed, the last column displays Oil temperature.
If both TIT and Oil temperature options are installed, the last column
displays TIT and the missing segment displays Oil temperature. The
highest Oil temperature segment will flash only when the digital display
shows OIL. The highest TIT segment will flash on when the digital
display shows TIT. A round dot under the numbers 1 through 6 indicates
that particular column is shown numerically in the EGT and CHT digital
display.
Bar Graph EGT and CHT
Each column in the bar graph is composed of a stack of segments. The
total height of each column represents the EGT and the missing segment
in the column represents the CHT.
In the Percentage view, the EGT, TIT, and Oil temperature
resolutions depend on the programmed red line limits.
CHT is displayed by a missing segment and
should be interpreted as follows: a missing
segment corresponds to the CHT in 25 F°
increments, starting at 250°F at the bottom. In
the example shown here, the CHT is 300°F. If the EGT bar
is lower than the missing CHT segment, then the CHT will
be indicated by a single isolated lighted segment.
The CHT display is the not affected by mode or view.
Percent HP (EDM-800 only)
Displays percent of rated HP or RPM depending on pilot programming.
Digital Display
Beneath the bar graph is the 9-segment alphanumeric display.
EGT and CHT
When the dot index is beneath a cylinder number, 1 through 6, the digital
display shows the EGT on the left (four digits) and the CHT on the right
250
350
450
CHT