Hawker 800 XP, Pilot Training Manual

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Turbine Temperature
Ten thermocouples (two pairs of five thermo-
couples connected in parallel to create an av-
eraging circuit) are located in the gas path
between the high pressure turbine and the first
stage of the low pressure turbine. These ther-
mocouples measure the interstage turbine tem-
perature (ITT) and send signals to the cockpit
indicator and to the fuel computer.
An indicator for each engine is located on the
center instrument panel and this displays the
average interstage turbine temperature (ITT).
The indicator displays ITT from 0° C to 1,200°
C in 50° C increments with colored bands to
indicate different temperature ranges. An off
flag indicates power loss to the indicator.
To facilitate the accurate setting of climb
power, a green light mounted in the corre-
sponding ITT indicator will illuminate when
PLA equals 105 ±2 degrees. The light will re-
main on until PLA is moved above or below
the specified range.
Revision 1 7-4A
FOR TRAINING PURPOSES ONLY
HAWKER 800 XP PILOT TRAINING MANUAL
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Figure 7-3B. ITT Gage