AvMap EGT probe Warn- und Installationshandbuch - Seite 3
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Seite drucken5. Installation
IMPORTANT: For a correct installation and temperature readings, consult the EngiBOX User &
Installation manual, paragraph 2.2 Connections & Wiring, available at avionics.avmap.it.
IMPORTANT: First install the thermocouple sensor on the engine (STEP 1). After the thermocouple
sensor is installed on the engine, proceed to connect the thermocouple sensor bare wires to the
EngiBOX (STEP 2).
STEP 1: Installation on Rotax 2 stroke and 4 stroke carbureted engines
IMPORTANT: Grease the connection threads with Loctite ANTI-SEIZE type material to ensure
trouble free removal and protect against rust, corrosion, seizing and galling.
The engine exhaust gas temperature is monitored by means of thermocouple sensors on the
engines exhaust manifold.
Check if the connection thread M8x1 for attachment of the thermocouple sensor is already provided
in the exhaust bend.
Case
Connection thread M8x1 is
provided in the exhaust bends
Connection thread M8x1 is
NOT provided in the exhaust
bends
NOTE: On Rotax 914 engine series the connection thread M8x1 for attachment of the thermocouple
sensor are already provided in the 4 exhaust bends. On the other Rotax engine series the presence
of exhaust manifold and connection threads may vary per engine and aircraft model.
STEP 2: Connection to the EngiBOX
The EngiBOX can connect to the thermocouple sensor in order to monitor the exhaust gas
temperature of the engine.
The AvMap EGT probe comes with 2 bare wires:
1. Red wire = +/+
2. Green wire = -/-
Connect the red wire to the respective EngiBOX terminal input +/+ TEMP
Connect the green wire to the respective EngiBOX terminal input -/- TEMP
Connect the thermocouple sensor to the connection thread M8x1
of the desired exhaust bend by screwing it in and fasten it tight.
Install the M8x1 weld boss, that is delivered in this package
together with the thermocouple sensor, on the exhaust bend.
Consult the Rotax installation manual and the aircraft
manufacturer that installed the engine on the aircraft for
identifying the correct position on the exhaust bend for exhaust
gas temperature readings.
After identifying the correct position make a 12mm (0.47")
diameter hole in the exhaust bend and insert the M8x1 weld boss
in the exhaust bend 12 mm (0.47") diameter hole and attach the
M8x1 weld boss to the exhaust bend by welding it.
Connect the thermocouple sensor to the M8x1 weld boss by
screwing it in and fasten it tight.
Action