General purpose inputs, Outside air temperature sensor, Mount location – Dynon Avionics FlightDEK-D180 Installation Guide User Manual

Page 31: General purpose inputs -13, Your choice. see the general purpose inputs

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Transducer

Installation

FlightDEK-D180. These fusible links are a simple and cost-effective way to protect against
short-circuits.
Next, crimp the two supplied #8 ring terminals onto the wires using the fusing method chosen
above. Connect the other ends of the fuses to the Amps High and Amps Low leads (pins 24 and
25) on the 37 pin harness. Unscrew the two smaller screws on the ammeter shunt. Slide the ring
terminals onto them and screw them back into the base. Connect the “Amps High” lead to the
side of the shunt marked by “H” in the diagram above; connect the “Amps Low” lead to the side
marked by “L”.
If you find that the current reading on the FlightDEK-D180 is the opposite polarity of what you
want, swap the two signal inputs (Amps High and Amps Low) to obtain the desired result.

It is extremely important that you secure all loose wires and ensure that exposed
terminals cannot touch or short out to other objects in the plane. All metal on the shunt is
at the same voltage as – and carries the same risks as – the positive terminal on the
battery. Improperly installing the ammeter shunt can result in high current flow, electrical
system failure, or fire.

If you are using GRT’s Hall effect amps transducer (P/N CS-01), route its output to pin 24, the
Amps High input, on the 37-pin EMS connector.

General Purpose Inputs

Dynon Avionics supports many sensors for which the
FlightDEK-D180 does not have dedicated inputs. The
instrument has 3 GP (general-purpose) inputs which
can be used for a variety of sources.

FlightDEK-D180 Installation Guide

3-13

OUTSIDE AIR TEMPERATURE SENSOR

Note that this section only applies to the OAT with 2
wires (both colored black/white), for
connection to the EMS DB37 connector. If
you have the 3-wire OAT, see Dynon EFIS
OAT Probe Installation and
Usage on page 9-
7. Alterna
tively, you may still use the 3-wire
OAT on the EMS DB37 connector by ignoring
the red wire and connecting the yellow and
blue wires (irrespective of polarity) in the
same way as the black/white wires described
here.

Pin

Color

Function

4 Purple/blue GP

1

22 Purple/yellow GP

2

23 Purple/green GP

3

Pin

EMS

harness

Color

OAT

sensor

color

Function

Desired

GP

input #

See chart

above

Black/

White

GP

Ground

pin

Black

Black/

White

ground

Mount Location

It is important that the OAT probe be mounted somewhere on the skin of the aircraft where it
will not be affected by heat sources (sun, engine, aircraft interior, etc). The ideal location would
receive no heat from the aircraft engine or any other source in the aircraft body. While this may
be impractical, it is a good idea to mount the probe as far away from heat sources as possible. On

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