Honeywell SPZ-8000 - FMS (PZ) EPR Limit Annunciation and Tickmark; Manual EPR Limit Annunciation; Turbine Gas Temperature (TGT) Display

2. E.
(2) (d) FMS
are
The
(PZ) EPR Limit Annunciation and Tickmark - EPR 1imit modes
selected on the main TRS menu of the display controller.
annunciation is displayed in white directly below the EPR
scale label. A white, enh~nced, tickmark is d~splayed along
the EPR scale in correspondence with the EPR limit mode
selected (Figure 225). The available FMS
limit modes are as
follows:
Limit
Mode
Annunciation
Takeoff TO
Go-Around
GA
Climb
CLB
Cruise CRZ
Max Continuous MCT
(e) Manual EPR Limit Annunciation - The FMS calculated limits may
be overridden by selecting the second page of the TRS menu and
manually dialing an EPR limit value. The symbology is as
discussed above for the limit marking on the scale. A MAN
annunciation is displayed
in white in the same location as the
FMS limit annunciation (Figure 226).
(f) EPR Target
Bug and Digital Readout - The FMS-PZ calCU1ates a
target bug based on the selected EPR limit mode. This bug is
displayed on the EPR scale in green (Figure 225) corresponding
positionally to the green digital readout above each EPR
current value window.
Generally, there is not a mode
annunciation given for the target bug since the target
corresponds to the selected limit mode.
FLEX mode is the one
exception. When FLEX mode is selected, takeoff (TO) is the
displayed limit mode, and a green FLEX mode annunciation is
displayed below the TO annunciation. The green bug is
positioned at the FLEX mode value.
(g) Turbine Gas Temperature (TGT) Display - The TGT
instruments
form
the second row of scales on the primary engine instrument
display (Figure 223).
The TGT arc is banded with white, amber,
and red colors to indicate normal, caution, and warning ranges
respectively on the arc.
The arc boundaries range nonlinearly
fromO “C to 1000 “C. A set point tick mark is displayed at
the 785 “C point on the arc.
The color band definition for TGT
is as follows:
WHITE
O “C< TGT < 715 ‘C
AMBER 715 OCS TGT < 800 “C
RED 800 “C< TGT < 1000 ‘C
22-14-00
Page 264
Aug 15/91
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