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shown on the EICAS display. The electrical
system volts and amps appear on page 2 of the
RMU engine displays (Figure 2-11).
Whenever the ENGINE PG1 display is auto-
matically displayed on the No. 1 RMU and
page 2 is subsequently selected, the display re-
turns to page 1 after 20 seconds. Returning the
RMU to the communication and navigation
function is accomplished with the RMU PGE
button. However, if the No.1 RMU is dis-
playing engine information due to an auto-
matic selection, that RMU will return to page
1 of the engine display 20 seconds after the last
pilot selection on the RMU. On the RMU en-
gine displays (page 2), the electrical data will
change color if out of limits, but will not be
boxed.
T h e E I C A S / M F D s y s t e m S U M RY p a g e
(Figure 2-10) displays VOLTS, left and right.
These two digital displays are an indication of
the voltage on the left and right essential
busses. Depending on what is powering the air-
plane electrical system, this can be an indi-
cation of airplane main battery volts, GPU
volts, APU volts or airplane generator volts.
A “L/R ESS BUS VOLTS” CAS message will
be posted if the voltage on the corresponding
bus decreases below 22 VDC or increases
above 29.5 VDC.
An indication of EMER-V (emergency bus
voltage) is displayed on the SUMRY page im-
mediately below VOLTS, left and right.
Emergency bus voltage can be monitored on
the EICAS/MFD display. The CAS also mon-
itors the emergency bus volts and will gener-
ate an amber “EMER BUS VOLTS” message
L E A R J E T 4 5
P I L O T T R A I N I N G M A N U A L
2-13
FOR TRAINING PURPOSES ONLY
FlightSafety
international
Honeywell
TUNE
SQ
DIM
1/2
STO
DME
TST
PGE
ID
Honeywell
TUNE
SQ
DIM
1/2
STO
DME
TST
PGE
ID
FUEL
HYD
M-B
SPL
FLP
MORE
10
3000
1400
20
1000
1450
ITT
O/P
76
550
80
550
MORE
6.5
R2
L3
TRIM-PIT
AIL
RUD
SAT
-15
°
310
AMPS
65
EMER V
28.0
20.0
VOLTS
28.0
984
FF PPH
1002
60
OIL
°
C
60
50.0
N2
50.0
75.0
N1
75.0
N1
IGN
75.0
IGN
75.0
Figure 2-11. RMU Backup Engine Display Pages