G3-4 Monitoring; G3 Monitoring - Bar-Graph Display Screen - INSIGHT G SERIES Pilot's Manual

G SERIES PILOT'S GUIDE .

G3-4 MONITORING

OAT is displayed as straight numbers
when temperature is positive.
A negative sign is shown for temperatures
below zero.
OAT is displayed in Fahrenheit.
The Bar-Graph Display Screen
The Exhaust Gas Temperature is displayed in white bar graph form and is interpreted much like a conventional mercury
thermometer. The higher the bar, the higher the temperature.
The cylinder head temperature is displayed in green single bar format. During normal operation it shows as a green illumi-
nated bar in the lower half of the bar column. Since EGT is normally higher than CHT, the green bar which represents CHT
is on top of the white illuminated EGT bar and stands out clearly.
However, when the engine is shutdown, the EGT quickly drops to zero and the cylinders remain warm for sometime.
The G3-4 provides a reliable indication of cylinder head temperature even with the engine shut down.
Should an EGT probe fail, the entire EGT column for that cylinder will go blank, and the numeric indication will show --- that
is dashes, but the CHT bar will still remain green.
The failure of one probe will not affect the display of any other probe.
The instrument may eventually accommodate engines with 4,6,7 or 9 cylinders in which case the appropriate number of
columns will be displayed and numbered.
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