2.2 Connections & wiring
Compatible sensors
Sensors
4 x INPUT Thermocouple ungrounded (type K and J)
Thermocouple ungrounded type K Rotax P/N: 966370
Thermocouple ungrounded type J Rotax P/N: NA
Application:
Exhaust Gas Temperature (EGT) (2 Stroke / 4 Stroke)
Cylinder Head Temperature (CHT) (2 Stroke)
2 x INPUT Resistance thermometer (type: NTC and PT-100)
NTC: Rotax P/N 965530 and 965531
PT-100: Rotax P/N 966385
Application:
Air Temperature, Coolant Temperature (2 Stroke)
Oil Temperature, Cylinder Head Temperature / Coolant Temperature
(4 Stroke)
1 x INPUT Oil Pressure pick-up (Keller 4-20 mA and VDO resistive 10 bar/150 psi)
Keller 4-20 mA Rotax P/N: 456180
VDO resistive Rotax P/N: 956357 / 956415
Measuring range: 0 to 10 bar / 0 to 150 psi
Application: Oil Pressure (4 Stroke)
1 x RPM pick-up
Measuring range: 0 to 9990 rpm
1 x INPUT Manifold Pressure
Measuring range: 0 to 70 inHg
Usage of other instruments in parallel
• Thermocouple sensors (for EGT and CHT) and Manifold pressure input can be used in
parallel with other measurement instruments.
• To use EngiBOX RPM input in parallel with another RPM instrument depends on
capacity of the other instrument. EngiBOX applies a 100 ohm load on RPM. Verify if the
other RPM instrument is able to correctly measure RPM with a 100 ohm load applied
between RPM input and instrument ground. This is equivalent to EngiBOX RPM usage
in parallel with another RPM instrument.
• Thermoresistance sensors (for OIL T, CHT, CT and Air T) and Oil pressure sensors can
not be used in parallel with other measurement instruments.
WARNING: Thermocouple sensors must be ungrounded, not be referred to GND or negative
external power.