Installation Guide User Manual
Table of Contents 
Contact Information......................................................................................................................................................iii 
Copyright......................................................................................................................................................................iii 
Limited Warranty .........................................................................................................................................................iii 
1.    1-1 Introduction
OEM Installations...................................................................................................................................................... 1-1 
Warning ..................................................................................................................................................................... 1-1 
About this Guide........................................................................................................................................................ 1-2 
Menu Descriptions..................................................................................................................................................... 1-2 
2.   2-1 Wiring Overview
Recommended Wiring Practices................................................................................................................................2-1 
Power Requirements.................................................................................................................................................. 2-1 
Grounding.................................................................................................................................................................. 2-2 
+5V Excitation........................................................................................................................................................... 2-3 
Thermocouple Harness Preparation........................................................................................................................... 2-3 
Harness Mating.......................................................................................................................................................... 2-3 
37-Pin Female EMS Harness..................................................................................................................................... 2-4 
25-Pin Male EMS Harness ........................................................................................................................................ 2-6 
3.   3-1 Transducer Installation
Tools and Equipment Required ................................................................................................................................. 3-1 
Exhaust Gas Temperature (EGT) Probes................................................................................................................... 3-2 
Cylinder Head Temperature (CHT) Probes ............................................................................................................... 3-3 
Tachometer................................................................................................................................................................ 3-4 
Manifold Pressure Sensor.......................................................................................................................................... 3-5 
Oil Pressure Sensor.................................................................................................................................................... 3-6 
Oil Temperature Sensor............................................................................................................................................. 3-7 
Fuel Pressure Sensor.................................................................................................................................................. 3-7 
Fuel Flow Sensor....................................................................................................................................................... 3-9 
Fuel Level Sensor .....................................................................................................................................................3-11 
Ammeter Shunt.........................................................................................................................................................3-12 
General Purpose Inputs.............................................................................................................................................3-13 
Contacts ....................................................................................................................................................................3-18 
General Purpose Thermocouple ...............................................................................................................................3-18 
4.   4-1 Instrument Installation
Power Bus Wiring ..................................................................................................................................................... 4-1 
Serial Communication Cables ................................................................................................................................... 4-1 
SL30 and/or GPS connection..................................................................................................................................... 4-2 
External EMS Warning Light.................................................................................................................................... 4-5 
Audio Alert Outputs .................................................................................................................................................. 4-6 
Dynon Smart Avionics Bus (DSAB) Wiring............................................................................................................. 4-7 
Panel Location and Mounting.................................................................................................................................... 4-8 
5.   5-1 EMS Configuration
Full-Page Setup Menu Overview............................................................................................................................... 5-1 
Alarm and Color Threshold Configuration................................................................................................................ 5-2 
Global Parameters Setup ........................................................................................................................................... 5-3 
Engine Type Configuration ....................................................................................................................................... 5-4 
Fuel Level Calibration ............................................................................................................................................... 5-5 
Trim Calibration ........................................................................................................................................................ 5-6 
Flaps Calibration ....................................................................................................................................................... 5-7 
EMS-D120 Installation Guide    v 










