SkyView System Installation Guide - Dynon Avionics

SV-EMS-220/221 Installation and ConfigurationEI “Red Cube” InstallationThe Electronics International “Red Cube” FT-60 flow transducer has ¼” female NPT ports. Donot exceed a torque of 300 inch-lbs. (.112 Nm) when installing fittings into the transducer. TheRed Cube FT-60 should NOT be installed with its wires pointing DOWN (the best situation iswith the wires pointing UP). The fuel line on the outlet port should not drop down after exitingthe transducer. This configuration can trap bubbles in the transducer, causing jumpy readings.The inlet port, outlet port, and flow direction are marked on the top of the FT-60.Rotax Placement RecommendationsIf installing on a Rotax 912, review Figure 38 for recommendations specific to these engines.912 (ULS) InstallationFromFuelTankRestrictor for 912 (ULS)Fuel FlowTransducerTo CarburetorsToFuelTankFuel FlowTransducerOutput SignalSV-EMS-220912 (ULS) or 914 InstallationTo CarburetorsFromFuelTankFuel FlowTransducerRestrictor for 912 (ULS)Fuel Flow or Regulator for 914TransducerOutput Signal #1Fuel FlowTransducerFuel FlowTransducerOutput Signal #2ToFuelTankSV-EMS-220Figure 38–Rotax Fuel Flow Sensors (Single-ended Measurement on Top and Differential Measurement onBottom)In the differential fuel flow configuration in the lower portion of Figure 38, the first fuel flowtransducer measures the fuel flow from the fuel tank. The second fuel flow transducermeasures the unused fuel flow that returns to the fuel tank. The SV-EMS-220/221 takes datafrom both transducers and calculates net instantaneous burn rate.Fuel Level SensorDynon Avionics does not sell fuel level sensors.The SV-EMS-220/221 supports both resistive type sensors as well as capacitive sensors whichoutput a voltage (e.g., Princeton). If you have a capacitive sensor which does not output a7-42 SkyView System Installation Guide - Revision O