Oil Pressure Sensor - Rotax 912 Series Installation Manual

1.3)

Oil pressure sensor

See
General note
As the instruments need a separate power supply and a different design
for the electrical oil pressure sensor, the resistance type instrument (type
VDO), which was supplied by BRP-Powertrain up to now, is not suitable
anymore. Suitable instruments are offered by various instrument manu-
facturers (e.g. ROAD or Aviasport).
Oil pressure sensor:
Technical data
Location
Wire gauge
Cable length
Operating temperature range Min. -40 °C (-40 °F)
Grounding
Tightening torque
In contrary to the oil pressure sensor offered up to now, which was pro-
Output signal
viding the signal on the basis of a sensor resistance variation, the new oil
pressure sensor (1) operates on basis of a current variation. This has to
be taken into account for the selection of the appropriate cockpit instru-
ment.
Wiring connection for instrument:
Wiring connec-
tion
NOTE:
The sensor cable is approx. 3 m (118 in) long and has 3 leads. The
Black lead is not to be connected and has no function.
- The Red lead from the sensor has to be connected to the positive bus
- The White lead (output signal) has to be connected directly to the inst-
Effectivity: 912 Series
Edition 2/Rev. 0
BRP-Powertrain
INSTALLATION MANUAL
Fig. 3.
Certification to the latest requirements such as FAR of
NOTICE
WARNUNG
EASA has to be conducted by the aircraft manufactur-
er.
The sensor cable can be modified in its length according
to the installation situation, e.g. shortened or extended.
For extension an appropriate, commercially available ca-
ble can be used. A resistance cable or similar is not nec-
essary.
via a fuse or circuit breaker.
rument.
Oil pump housing
2
Standard wire 0.5 mm (AWG 20)
3 m (118 in)
Max. +125 °C (+257 °F)
Via engine block/airframe ground
15 Nm (98 in.lb) and LOCTITE 243
76-00-00
page 6
August 01/2012