Garmin G1000 Manual page 109

PROPELLER RPM GAUGE
Propeller speed is shown in revolutions per minute (rpm) from zero to 2200. If propeller speed slows
to where the gauge pointer enters the yellow range, a caution is issued. A propeller overspeed warning is
indicated if propeller speed exceeds the maximum safe operating speed.
GENERATOR SPEED GAUGE
Generator speed is indicated as a percentage of maximum safe operating speed (rpm), from 0 to 120%. If
generator speed exceeds 104% a warning condition occurs.
ITT GAUGE
The Interturbine Temperature (ITT) Gauge ranges differ for engine off/start and running conditions. Values
between 200 and 1200 degrees Celsius (°C) are shown at engine start; values change to 200 to 900°C when
the engine starts running. When the engine is not running, 'OFF' is annunciated above the ITT readout; this
changes to 'STRT' upon engine start. No annunciation is shown when the engine is running normally.
190-00709-05 Rev. D
Figure 3-7 Propeller RPM Gauge (TBM 850) Figure 3-8 Propeller RPM Gauge (TBM 900)
Figure 3-9 Generator Speed Gauge
Engine Off
Figure 3-10 Interturbine Temperature Gauge Status Annunciations
Garmin G1000 Pilot's Guide for the Socata TBM 850/900
ENGINE & AIRFRAME SYSTEMS
Engine Start Normal
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