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A B
EEC
DATA
ENTRY
PLUG
DAUs
DUAL ELEMENT
THERMOCOUPLE
789 789
ITT
POWER PLANT
Flight Crew Operating Manual REV 41, Jul 08, 2004
CSP 700−6
Volume 2
18−10−22
ENGINE INDICATIONS (CONT'D)
ITT Indication
GF1810_033
ITT Readout
Displays the current
ITT value.
ITT Speed Redline
Displays the maximum ITT
allowed and is set at 900°C, for
engine operation (except engine
start). Should the ITT limits be
exceeded, the sweep arm and
ITT readout will be red and will
flash.
906
ITT Sweep Arm
Displays the current
ITT value.
789 789
ITT
25
ITT
ITT Redline (ground start)
The redline is reset for ground start
to 700°C. It will revert back to
900°C once the engine is at idle.
125
ITT
ITT Redline (in flight start)
The redline is reset for inflight start
to 850°C. It will revert back to 900°C
once the engine is at idle.
POWER PLANT
REV 41, Jul 08, 2004 Flight Crew Operating Manual
CSP 700−6
Volume 2
18−10−23
ENGINE INDICATIONS (CONT'D)
N2 (HP Compressor)
The N2 signals are used by the EEC for engine control functions and are used by the Engine
Vibration Monitor Unit (EVMU).
N2 is measured by four speed probes per engine, mounted in the accessory gearbox.
Three speed probes are used by the EEC for the following:
· Variable stator vane control
· Bleed valve control
· Start/relight
· Redline limiting
· Idle control
· Surge protection/recovery
· Overspeed protection
· N2 EICAS indication
The fourth probe, is used by the EVM system for engine vibration indication.
GF1810_034
AIRFRAME
ENGINE
N2
SPEED
PROBE
N2
SPEED
PROBE
N2
SPEED
PROBE
N2
SPEED
PROBE
ENGINE
VIBRATION
MONITOR
UNIT
EEC
CHANNEL
A
EEC
CHANNEL
B
IOP
CHANNEL
A
IOP
CHANNEL
B
N2
FF (PPH)
OIL TEMP
OIL PRESS
93.4
5750
115
81
93.4
5750
115
81
POWER PLANT
Flight Crew Operating Manual REV 41, Jul 08, 2004
CSP 700−6
Volume 2
18−10−24
ENGINE INDICATIONS (CONT'D)
N2 Indication
GF1810_035
N2 Readout
Displays the current
N2 value.
N2
FF (PPH)
OIL TEMP
OIL PRESS
93.4
5750
115
81
93.4
5750
115
81
SYNC Mode
Displays synchronized mode
as selected by the autothrottle
or manually through the FMS.
SYNC
N2
FF (PPH)
OIL TEMP
OIL PRESS
99.0
5750
115
81
N2
FF (PPH)
OIL TEMP
OIL PRESS
99.8
5750
115
81
N2 Amberline
If the N2 speed limit is exceeded
the N2 readout will turn amber. The
amberline range is 98.9% N2, or
greater.
N2 Redline
If the N2 speed exceeds the
amberline limits, the N2 readout will
turn red and will flash. The redline
range is 99.6% N2, or greater.
N2
FF (PPH)
OIL TEMP
OIL PRESS
75.8
3750
100
70
N2 Readout with
Wing Anti−Ice Active
If N2 RPM is < 76% N2
with WAI active (AUTO or ON)
the N2 readout will turn white.
If N2 RPM is > 76% N2 then
the N2 readout will turn green.
N2
FF (PPH)
OIL TEMP
OIL PRESS
77.0
3800
105
72
Fuel Flow
The fuel flow transmitters will send a signal of engine consumed fuel flow to the EEC. Fuel flow is
either displayed in pounds/hour (PPH) or kilograms/hour (KPH) depending on customer
specifications.
POWER PLANT
REV 41, Jul 08, 2004 Flight Crew Operating Manual
CSP 700−6
Volume 2
18−10−25
ENGINE INDICATIONS (CONT'D)
Fuel Flow Indication
FF (PPH or (KPH) Readout
Displays the current fuel flow.
5700 FF (PPH) 5750
Oil Temperature
Oil cooling is achieved by the Fuel Cooled Oil Cooler (FCOC). The oil temperature bulbs provide
temperature to the EEC.
Oil Temperature Indication
GF1810_037
OIL TEMP Readout
Displays the current
oil temperature.
115 OIL TEMP 115
Low Temperature Redline
If the oil temperature is lower than − 30°C
the OIL TEMP will turn red and will flash.
　
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