SkyView System Installation Guide - Dynon Avionics

SV-EMS-220/221 Installation and ConfigurationDynon Part Number Description Mates with…100399-000 EMS 37-pin Main Sensor Harness SV-EMS-220/221 Male D37100399-001EMS EGT/CHT 4-cylinder 25-pinThermocouple Wire HarnessSV-EMS-220/221 Female D25100399-002EMS EGT/CHT 6-cylinder 25-pinThermocouple Wire HarnessSV-EMS-220/221 Female D25100399-004EMS EGT 2-cylinder 25-pinThermocouple Wire HarnessSV-EMS-220/221 Female D25Table 13–EMS Wire HarnessesA typical SV-EMS-220 installation will utilize one EMS 37-pin Main Sensor Harness and one ofthermocouple wire harness. A typical SV-EMS-221 installation does not utilize a thermocoupleharness. Choose a thermocouple wire harness based on the number of EGTs and/or CHTs thatneed to be monitored.The EMS 37-pin Main Sensor Harness includes a D9 connector that is wired topins 11 (Orange wire), 12 (Yellow wire), and 30 (Black wire). This connector isused for other Dynon products, is not used in SkyView installations. Thus, the D9connector should be removed to use these wires for connecting sensors to theSV-EMS-220. Remove the connector by cutting the three wires close to the D9connector.The EMS 37-pin Main Sensor Harness (Dynon P/N 100399-000) may be wiredwith blue and green wires on pins 36 and 37, respectively. If you are going to usepins 36 and 37 for a thermocouple input such as a CHT or EGT (this is notpossible on the SV-EMS-221 that is used with the Rotax 912 iS, as these wires arereserved for CAN communications), the blue and green wires should be removedand replaced with the appropriate type of thermocouple wire for thermocouplefunctionality on pins 36 and 37. If you are not going to use these pins for athermocouple input, the blue and green wires do not need to be removed.All of the ground wires on the SV-EMS-220/221 D37 are interchangeable, and canbe used for any sensor that requires grounding. Additionally, one of these wiresneeds to be grounded to the aircraft locally to provide a good ground referencefor the engine sensors. We suggest using the black ground wire connected to D37pin 3 for this purpose.Sensor and Transducer Compatibility KeyThis section is primarily intended for users with installations that are notsupported in or significantly deviate from the preconfigured installation resourcesavailable from Dynon. Reference Example Engine Sensor and TransducerInstallations Section for installations which have downloadable preconfiguredinstallation resources.7-4 SkyView System Installation Guide - Revision O