Dynon Avionics SkyView System Installation Guide - Manual (Page 158)

SV-EMS-220/221 Installation and Configuration
7-46 SkyView System Installation Guide - Revision S
The UMA N1EU07D sensor is a differential pressure sensor which measures fuel pressure with
respect to air box pressure as required by the 914 engine. One UMA N1EU07D sensor is
installed on 914 engines, but that sensor is dedicated to the 914 ECU, and the output of the
sensor cannot be shared between the ECU and SkyView. To display a 914 engine’s fuel pressure
on SkyView, a second UMA N1EU07D sensor must be purchased and installed. This sensor is not
supplied by Dynon Avionics.
Install the differential fuel pressure sender in an area convenient to the connections on the
engine. The mounting threads are 5/8-18. Connect side of sender marked with a “W” to the fuel
line close to the carburetors. Use 1/8-27 pipe thread fitting. Connect the other side of sender to
the air box. This can be done by inserting a “T” in the carb vent lines that go to the air box. Use
a 1/8-27 pipe thread, barbed insert into the sender. Make sure all fittings on the air box lines
are tight using spring clamps or tie wraps.
UMA N1EU07D Wiring:
Wire Color Function
SV-EMS-220 D37 Pin Connector
(Dynon Harness Color)
Notes
Red Power (12V) Pin 15 (Red)
This pin may be
shared with other
sensors
Black Ground Pin 3, 13, 16, 17, or 30 (Black)
This pin may be
shared with other
sensors
White Sensor output
Pin 8 (Brown), or
Pin 22 (Violet/Yellow), or
Pin 23 (Violet/Green), or
Pin 31 (White/Orange)
Table 40 – UMA N1EU07D Wiring
Configure the pin you chose: (SETUP MENU > EMS SETUP > SENSOR INPUT MAPPING > C37 P8 /
P22 / P23 / P31: Rotax 914 Diff Fuel Press
Fuel Flow Sensor
The approximate pulses/gallon setting for the FloScan 201B (i.e., cast metal case
legacy Dynon sensor) is 28,000 to 31,000. The approximate pulses/gallon for the
Electronics International FT-60 (i.e., the red cube) is 68,000. You must configure the
fuel flow sensor using this numerical value in the Sensor Setup Menu (SETUP MENU
> HARDWARE CALIBRATION > EMS CALIBRATION > FUEL FLOW CALIBRATION).
More information on this topic is discussed in the Fuel Computer Configuration
section of this chapter.