Dynon Avionics FlightDEK-D180 Installation Guide - Manual (Page 34)

Transducer Installation
TRIM AND FLAPS POSITION POTENTIOMETERS
Dynon Avionics does not sell trim or flaps
position sensors. These are normally included
with, or added on to, their respective servos.
Most flap and trim sensors are potentiometers
(variable resistors) which require power and
ground inputs, and supply an output that is a
function of position. These potentiometers
come in a variety of resistance ranges, but are
typically 1kΩ, 5kΩ, 10kΩ, and 20kΩ. All of
these values will work properly with the
FlightDEK-D180, as there is a calibration
required, as described on page 6-6. Connect
the 5V Excitation line from the FlightDEK-
D180 37-pin EMS connector to the +5V input
on your trim/flap position sensor. Connect the
ground input on the sensor to a ground common to the FlightDEK-D180. Connect the output of
the sensor to the desired GP input. You may connect up to three trim/flap sensors. For physical
installation, refer to the instructions that came with your position sensor.
If you are using the output from a Ray Allen servo or sensor, connect its white/orange wire to the
Dynon 5V excitation line (pin 18), its white/blue wire to ground, and its white/green wire to your
GP input of choice.
Be sure to configure the FlightDEK-D180 to recognize the various sensors on the general-
purpose inputs as described in the General Purpose Inputs section on page 6-17. Additionally,
you will need to calibrate each flap/trim sensor as described on page 6-6.
3-16 FlightDEK-D180 Installation Guide
COOLANT PRESSURE SENSOR
You will find two 1kΩ resistors (color bands:
brown, black, black, brown, brown; connect in
either direction) in the accessories package (Dynon
P/N 100446-000) included with the FlightDEK-
D180. You will be using one of these resistors for
proper installation of this sensor.
The Dynon-supplied coolant pressure sensor is a 0-
30 psi sensor (Dynon P/N 100411-000). First,
mount the pressure sensor to a fixed location using
an Adel clamp or other secure method. The
pressure sensor must not be installed directly to the
engine due to potential vibration problems. Next,
connect the sensor to the coolant line using
appropriate hoses and fittings. Its pressure port has
a 1/8-27 NPT pipe thread fitting; you may need adapters to connect to the pressure port on your
engine. Locate (or drill and tap) the pressure port along the coolant line. This port must have a
DB37
EMS
Pin
EMS
harness
Color
Position
Pot
Function Function
Desired
GP
input #
See chart
on page 3-
13
Position
out
(voltage)
GP
18 White/Red +5V in
Position
sensor
power
Ground
pin
Black
Ground in
(common
to EMS)
ground
EMS
DB37
Pin
EMS harness
Color Function
Desired
GP input
#
See chart on
page 3-13
GP
18 White/Red
5V supply
to 1kΩ
resistor
Ground
pin
Black
Ground in
(common
to EMS)