SV-EMS-220 Installation and Configuration
SkyView System Installation Guide - Revision K 7-43
If you use Teflon tape or other seal, ensure the sensor casing still maintains a good
connection to ground.
Coolant Temperature Sensor
The coolant temperature sensor may be connected to any general purpose input pin on the SV-
EMS-220’s D37.
The coolant temperature sensor needs to be installed according to the directions of your
engine’s manufacturer. Dynon Avionics sells temperature sensors with both 5/8-18 UNF (Dynon
P/N 100409-001) and 1/8-27 NPT (Dynon P/N 100409-000) threads; these are the same as
those used by the oil temperature inputs. If neither of these threads matches those in your
coolant line, you will need to use adapters or drill/tap your own. Using a crush washer between
the sensor and the mating line, screw the sensor into the fitting. Do not over tighten.
Route the wire from the desired general purpose input pin on the SV-EMS-220’s EMS 37-pin
Main Sensor Harness to where the coolant temperature sensor is mounted. When routing the
wires, make sure that they are secured, so they will not shift position due to vibration. Strip ¼”
of insulation off the end of the wire. Crimp a #10 ring terminal onto the end of the wire. Ensure
that a good connection is made between the wire and the connector. Unscrew the nut from the
stud on the coolant temperature sensor. Slip the ring terminal onto the stud and secure the nut
over it.
Rotax Pre-installed Coolant Temperature Sensor: Wire the coolant temperature sensor in the
same way as shown above for the Dynon-supplied sensor.
General Purpose Temperature Sensor
Any temperature sensor provided by Dynon may be utilized as a general purpose temperature
sensor on any general purpose input pin on the SV-EMS-220’s D37.
For example, you may connect an SV-OAT-340 probe and configure it as a general purpose
thermometer (e.g., for cabin temperature).
Contacts
Contacts may be connected to any general purpose input pin on the SV-EMS-220’s D37. The
number of contacts in your SkyView system is only limited to the number of unused general
purpose input pins on the connector.
Dynon Avionics does not sell contacts or switches.
Contacts are used for a variety of purposes, such as monitoring canopy closure. The EMS
firmware reads the voltage state of general purpose inputs. To configure them as contacts, use
two voltage ranges in your sensor setup. Set one to 0-2V, and the other from 2-5V. SkyView will
then report whether each input is open (no connection to ground, which is the 2-5V state) or
closed (connection to ground, which is the 0-2V state). You must ensure that when closed, the
To Next Page
Loading...
