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Sonex Aircraft, LLC

PO Box 2521

Oshkosh, WI 54903-2521

(920) 231-8297

Fax: 920-426-8333

www.sonexaircraft.com

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SONEX/ELECTRIC INSTRUMENT INSTALLATION NOTES 4 pages

Letter Ref: SNX-ELIN-102708

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Congratulations on your Electronic Instrument Purchase. The following notes are

provided for your reference as you set up your Electronic Instrument in your

Sonex, Waiex, or Xenos.

Where any conflict exists between this sheet and the instructions provided with

your Instrument, follow the instructions provided with your instrument:

1. CHT Probe Installation: We recommend using the Sonex CHT Probes

available for purchase directly from Sonex Aircraft. Refer to the Engine FWF

Documentation for more information on the monitoring of your CHT’s. Note that

both Type J and Type K versions of these probes are available.

Typical CHT Probe from Sonex

Typical CHT Probe Installation

2. EGT Probe Installation:

Make sure your probe is installed 4 inches down from the top of the exhaust

stack flange. Most EGT Probes are Type K. Refer to the Engine FWF

Documentation for more information on the monitoring of your EGT Probes.

3. Sonex Fuel Level Probe: Your Sonex-Specific Stratomaster Fuel Level Probe

is set up to simulate a Resistive (ohm) output to your instrument as the fuel level

changes. The Sonex-Specific EIS Fuel Level Probe is set up as a Capacitive

output to your instrument. Follow the instructions provided with both the probe

and instrument carefully. For your information, we are providing our factory

installation procedure for Stratomaster Instruments:

Summary of content (4 pages)

PAGE 1
Sonex Aircraft, LLC PO Box 2521 Oshkosh, WI 54903-2521 (920) 231-8297 Fax: 920-426-8333 www.sonexaircraft.com ________________________________________________________________ SONEX/ELECTRIC INSTRUMENT INSTALLATION NOTES 4 pages Letter Ref: SNX-ELIN-102708 ________________________________________________________________ Congratulations on your Electronic Instrument Purchase. The following notes are provided for your reference as you set up your Electronic Instrument in your Sonex, Waiex, or Xenos.
PAGE 2
From the Fuel Level Probe "Black Box": Hook up the Green Wire to the Stratomaster Fuel Level Input on the RDVAC, the Red Wire to +12V, and the Black Wire to Ground. The programming in the Stratomaster Unit makes you put 1.3 Gallons in the tank, which it then will interpret as your empty level. This gives you a reserve of fuel and additional safety measure of fuel when Stratomaster is reading empty. We Started with an empty fuel tank and added 2 gallons of fuel and set Fuel Tank capacity at 1.
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4. Fuel Flow Option: There are two Fuel Flow meters that we have used with our electronic instruments. A metal “Flo-Scan” unit and a Plastic Unit. See images below. Sonex recommends that you use the Metal Floscan Unit shown below. Metal Floscan Fuel Flow Unit Plastic Fuel Flow Unit The Metal Floscan Fuel Flow Installation Instructions can be downloaded from the Stratomaster or Sonex Web Sites. The FF sender instructions are relevant to the “Smart Single” Stratomaster FLT-II Installation.
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6. Oil Temp Set-up: Set the Oil Temp Probe to “Standard NTC” 7. Oil Pressure Set-up: Set the Oil Pressure Settings on the MGL Instruments to the following: (Note: On the Jabiru 2200 and 3300, the Oil Pressure wire should be attached to the terminal labeled “G) Sender type: automotive, resistive Resistance: 200 ohms Resistance INCREASES with pressure Sender Range: 80 PSI 9.