Honeywell PRIMUS 1000 - Engine Ignition (Ign) Annunciation; Interstage Turbine Temperature (Itt) Display; ITT Analog Scale

PRIMUSr 1000 Integrated Avionics System
A28--1146--112--00
5-11
Engine Instrument and Crew Alerting System (EICAS)
INTERSTAGE TURBINE TEMPERATURE (ITT) DISPLAY
D ITT Analog Scale -- The scale listed in table 5--3, is color banded,
as to indicate normal and parameter exceedance ranges.
Operating Condition Color
Lower
Limit
Upper
Limit
All modes except
A
L
T
-
-
T
/
O
White 0 _C 921 _C
A
L
T
-
-
T
/
O
Red 922 _C 1000 _C
NOTES: 1. Color ranges change for engine start and CON, the CLB, and
C
R
Z
c
o
n
d
i
t
i
o
n
s
.
C
R
Z
c
o
n
d
i
t
i
o
n
s
.
2. ALT--T/O modes have different ITT limits.
ITT Limits
Table 5--3
The scale ranges from 0 to 1000 _C. The scale from 800 to 1000 _C
is twice the rest of the range.
In the red range, the pointer and digital display change color.
A red tick mark, indicates the beginning of the red range.
D ITT Digital Display -- Ranges from 0 to 1000_C in 1.0 _C
increments.
ENGINE IGNITION (IGN) ANNUNCIATION
Each engine’s dual ignitors are monitored for activation. The
annunciation color relates to ignitor status as listed in table 5--4.
Number of Operating
Ignitors
IGN Annunciation
Color
2 Green
0 Amber
Ignitor Annunciation Color Definition
Table 5--4
The annunciation can be A, B or AB, dependingon the selection bythe
FADEC. The annunciation can also be OFF.