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  • EFIS(135)
121 RDAC VD Reference Ground to Engine Block

On the RDAC VD, the Reference Ground wire is the bottom terminal on the RDAC, labelled REF GND. This terminal should go straight to Engine Block. Important: Read this article on why an Engine Block Reference Ground is critical for accurate engine sender readings.…

122 Is my CHT probe reading correctly?

If you are unsure whether your CHT Thermocouple probe is reading correctly (MGL Avionics type-K thermocouple), there are a few simple tests you can do: BOILING WATER TEST With the CHT probe still connected to the instrument, hold the probe ring in a pot of…

123 CHT Thermocouple Probe Type?

Most Aviation CHT probes are either Type-K or Type-J thermocouples. All CHT probes sold by MGL Avionics are Type-K. Many CHT probes available in the US are type-J. Please contact manufacturer to find out what type they are. If you use the wrong type in your…

124 EGT Thermocouple Probe Type?

Most Aviation EGT probes are type-K thermocouples (because the temperature range of type-J thermocouples is not has high as is required for EGT). All MGL Avionics EGT probes are TYPE-K. Note that the polarity of Type-K Thermocouples is not intuitive, as Red…

125 FT-60 Red Cube (and FT-90 Gold Cube) Fuel Flow Sensor Manuals

Attached are the EI FT-60 Red Cube (and FT-90 Gold Cube) Fuel Flow Sensor Manuals

126 Floscan Fuel Flow Sensor Manual

Attached is the Floscan 201A-6, 201B-6, 201C-6 Manual

127 What is the K-Factor of the Floscan Fuel Flow Sensor?

Each Floscan model 201A-6, 201B-6 or 201C-6 is shipped with a tag attached to it. This tag has a number that looks something like this: 16-3200 What this means is that the sensor was calibrated at 16 GPH to have a K-factor of 32,000 (you have to multiply…

128 Can I shorten the GPS Antenna cable?

The GPS Antenna coax cable must not be cut short. This is due to the fact that the GPS receiver inside the EFIS is tuned for the length of coax cable included. This applies to the GPS antenna included with the XTreme, Enigma, Odyssey, Voyager and iEFIS systems.…

129 Thermocouple Order - which goes first EGT or CHT?

In all MGL Avionics instruments (except iEFIS), including Velocity Singles and Infinity Singles and all RDAC connections for MGL Avionics Enigma, Odyssey and Voyager EFISs, the following rules apply regarding the order in which EGT and CHT probes are connected:…

130 Fuel Flow Sensor Common Problems (Plastic Model)

The most common problems with the plastic fuel flow sensor not giving a reading (or given a low reading) are: Restrictor jet not installed correctly: The small restrictor jet is included with the flow sensor and needs to be installed in engines with fuel…


IMPORTANT NOTICE: You must make your own determination if the products sold by MGL Avionics are safe and effective for your intended applications. MGL Avionics makes no representations or warranties as to either the suitability of any of the products we sell as to your particular application or the compatibility of any of the products we sell with other products you may buy from us or anywhere else, and we disclaim any warranties or representations that may otherwise arise by law. Also, we offer no specific advice on how to install any of the products we sell other than passing along anything that may have been provided to us by the manufacturer or other users. If you are in need of further information or guidance, please turn to the manufacturer, FAA Advisory Circulars and guidance materials, the Experimental Aircraft Association, or other reputable sources.