Aircraft AITHRE SHIELD EX Series Manuel

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GENERAL INFORMATION: The Aithre Shield EX 1.0, 2.0, and 3.0 integrate behind-the-panel with your

avionics using a simple analog voltage output(s). The EX 1.0, 2.0, and 3.0 each feature carbon monoxide

detection with long life, high sensitivity, fast response time, simple wiring, temperature/pressure

independence, and a small form factor. The EX 2.0 also supports the iOS Aithre Connect application that

is available from the APPLE store. The EX 3.0 adds the wireless reception of tank psi from the Aithre Altus

portable oxygen tank pressure gauge and outputs the tank psi as a simple analog voltage output.

WIRING INSTRUCTIONS

o Red –

o Black – Aircraft Ground

o White – Analog Voltage of Carbon Monoxide

o Yellow (EX 3.0 only) – Analog Voltage of Oxygen Tank PSI

MOUNTING INSTRUCTIONS

o Mount behind or under the avionics panel at any location with access to

general cabin air

o Do NOT tape or cover over the housing intake holes in the case

o For optimal Bluetooth range of EX 2.0 and EX 3.0 mount unit away from radio

and high current wires

CALIBRATION INSTRUCTIONS

o CO: Calibrate your avionics with these suggested

AITHRE SHIELD EX SERIES

CO AND O2 PSI SENSORS FOR EXPERIMENTAL AIRCRAFT

5V Power Input ONLY (WARRANTY VOID 12V/24V)

Do NOT connect to 12V or 24V power supplies



Total current draw is very low at around 5 mAmp

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Minimum 0 ppm CO gas = 0V

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Maximum 255 ppm CO gas = 3.3V

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Linear voltage output between 0 ppm and 255 ppm



Connect to available analog input pin on engine monitor module

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Requires the Aithre Altus wireless portable oxygen tank pressure



gauge

Minimum 0 psi Oxygen = 0V



Maximum 2500 psi Oxygen gas = 3.3V



Linear voltage output between 0 psi and 2500 psi



Connect to available analog input pin on engine monitor module

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Try temporary mounting positions before permanently mounting to



ensure satisfactory Bluetooth range

For the EX 3.0, always run the iOS application in the foreground or



the background to reinforce and boost the strength of the BLE signal

between the Aithre Altus and the EX 3.0

Normal Range: 0 ppm (0V) - 9 ppm (0.12V)



Caution Range: 10 ppm (0.12V) – 49 ppm (0.64V)

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