SkyView - Dynon Avionics

SV-EMS-220 Installation and ConfigurationTachometerTachometer pulses/revolution must be set in the Engine Information Wizard(SETUP MENU > EMS SETUP > ENGINE INFORMATION).Dynon Avionics does not sell a tachometer transducer.Depending upon existing equipment and engine type, you have a few options for connectingthe tachometer inputs on the SV-EMS-220. The following table revisits the SV-EMS-220 pinsthat are compatible with RPM sources.Pin Wire Color Function32 White/Green Standard RPM Input Left (10+ volts)33 White/Blue Standard RPM Input Right (10+ volts)34 Blue Low Voltage RPM Input Left (2 to 10 volts)35 Green Low Voltage RPM Input Right (2 to 10 volts)Table 31–SV-EMS-220 RPM InputsSee the relevant subsections below for your particular method. You may connect differenttypes of signals to the two different RPM inputs (e.g., p-lead to Standard RPM Left and a 12 volttransducer to Standard RPM Right).If a standard RPM input is used, do not connect anything to the low voltage inputof the same polarity (i.e., right or left). If a low voltage RPM input is used, do notconnect anything to the corresponding standard RPM input.Tachometer transducerIf you have a dedicated tachometer transducer (usually with a 12 volt output), you may simplyconnect its output to the Standard RPM Left input on the SV-EMS-220. Ensure that you followall recommendations given in the manual for your individual tachometer transducer.P-lead pickoff (Lycoming and Continental)If you do not have a dedicatedtachometer pickoff, you mustfollow the instructions below.Use the two included 30 kΩresistors (color bands: orange,black, brown, red, brown; connectin either direction) to attach leftand right P-leads to the standardRPM Left and RPM Right inputs onthe SV-EMS-220. Connect them asshown in Figure 25. It is importantto connect each resistor as closeFigure 25–Magneto Pick OffSkyView System Installation Guide - Revision J 7-27