A
A
I
I
R
R
P
P
L
L
A
A
N
N
E
E
T
T
E
E
C
C
H
H
N
N
I
I
C
C
A
A
L
L
D
D
E
E
S
S
C
C
R
R
I
I
P
P
T
T
I
I
O
O
N
N
,
,
O
O
P
P
E
E
R
R
A
A
T
T
I
I
N
N
G
G
,
,
M
M
A
A
I
I
N
N
T
T
E
E
N
N
A
A
N
N
C
C
E
E
A
A
N
N
D
D
R
R
E
E
P
P
A
A
I
I
R
R
M
M
A
A
N
N
U
U
A
A
L
L
2-39
Document No.:
EV97SLNOEN
Date of Issue:
02/2008
Revision:
-
2.3.12.4 The Engine Monitoring System (EMS) TL 3724
The Rotax 912 engine parameters are monitored by the Engine Monitoring System (EMS) TL 3724
(if installed).
The following parameters are displayed on the EMS display:
Engine speed
Engine hours
Exhaust gases temperature (only if sensors are installed in the exhaust system)
Cylinder head temperature
Oil temperature
Oil pressure
Overrun of data limits
For each measured item (except for engine hours) is set its allowed maximum limit in the instrument
memory. If any item is close (lower limit) to maximum then pilot is warned by EMS red warning light,
a message OVER and flashing of the measured value.
If any limit is exceeded during the flight, then display shows SERVICE MESSAGE or CONTACT
SERVICE prior the next engine start-up, the pilot has to identify which measured item was
exceeded and eliminate the probable defect. By pushing the EMS control button on the instrument
panel, the information about which value was exceeded is shown.
Signalling
An actual value of each measured item (except for engine hours) is continuously compared to its
allowed maximum limit that is set in the EMS instrument memory.
For each measured unit there are two limit values:
A/ WARNING
- If the first (lower) limit value is exceeded, the pilot is informed by the flashing EMS
warning light, a message OVER and flashing of the measured value. The exceeding
of this limit is recorded into the operational memory. The SERVICE MESSAGE is
not displayed.
B/ ALARM
- If the maximum limit is exceeded, the pilot is informed by the flashing EMS warning
light, a message OVER and flashing of the measured value. The exceeding of this limit
is recorded into one of the 14 memory blocks. Prior to next engine star-up, the
SERVICE MESSAGE is displayed. For next action see EMS TL 3724 USER
‘
S
MANUAL.
Limit values of each item are shown in Chapter IV of the EMS TL 3724 USER
‘
S MANUAL.
