Connections For Instrumentation; Sensor For Cylinder Head Temperature - Rotax 914 F Installation Manual

23) Connections for instrumentation

These connections to be established in accordance to certification and/or national specifica-
tions.
The certification for connections and connection lines have to be conducted by the aircraft
builder to the latest requirements like FAR and JAR.
For notes regarding the electric rev-counter consult the chapter 19.4.13.

23.1) Sensor for cylinder head temperature:

See Ill. 71/72.
NOTE:
The temperature sensor Q is directly fitted into cylinder head i.e. a direct temperature
reading of the cylinder head material is taken. This allows the exact measuring of the
cylinder head temperature even in the case of coolant loss.
NOTE:
location: in the cylinder head of the cylinders 2 and 3, see Ill. 4.
connection:
cylinder head
2
3
grounding:
graph of sensor resistance over temperature
(Ω) ohm
1200
1000
800
600
400
200
0
20
ATTENTION: The graph resistance over temperature has been determined, and is
NOTE:
Modification-No.
- 0 -
A direct reading of the coolant temperature is not provided for.
Readings are taken on the hottest cylinder, depending on engine
installation.
plug for socket 6,3x0,8 to DIN 46247
A x e s
x axis y axis
- 2 0 0 , 0 2 4 1 , 0 - 1 5 7 , 0
- 3 8 7 , 0 - 2 4 1 , 0 - 1 5 7 , 0
via engine block
40 60 80 100 120
effective at the following conditions only.
ambient temperature:
tolerance:
BOMBARDIER-ROTAX recommends the temperature indication
VDO instrument "VDO 310.274/082/017" with an indicating range of
50° to 150° C (120° F - 300° F).
Reference
z axis
Ill. 72
(°C)
140 160
20° C (68° F)
± 10%
1
Ill. 71
Install Date
1996 05 10
914 F
Page
93