SV-EMS-220/221 Installation and Configuration
SkyView System Installation Guide - Revision AA 7-65
o Because each individual CS-01 and CS-02 varies somewhat, configuring the CS-01
and CS-02 typically requires an amps "offset" value to be utilized. SkyView provides
17 different offsets for each sensor via different choices in the SENSOR column.
These contain offsets that range from "-8" (offset of -8A) through "+8" (offset of
+8A). If you wish the CS-01 or CS-02 value on your SkyView EMS to display most
accurately at zero current, choose the offset that displays "0A" when zero current is
flowing through system. This can be done by turning off all avionics power and
operating SkyView on its SV-BAT-320. If you wish the current to display most
accurately at normal current draw, choose whichever of the 17 offset values
provides the most accurate current reading. (This will require some
experimentation.)
Set the name column to “AMPS” (default) or create a custom name.
Carburetor Temperature Sensor
The carburetor temperature sensor may be connected to any general purpose input pin on the
SV-EMS-220/221’s D37, however, we recommend that it be connected to pin 23 on this
connector.
Install the carburetor temperature sensor in the venturi area at the point where ice first begins
to form. This is located after the main nozzle, before the throttle valve. You must remove the
plug in the carburetor housing below the throttle valve. On four-cylinder engines which use the
Marvel Schebler MA-3 carburetors, this plug is located on the forward side. On six-cylinder
engines using the MA-4 carburetor, the plug is located on the rear. If your carburetor is not
drilled and tapped for the plug, you must remove the carburetor from the engine and drill out
the lead plug in the appropriate spot. Tap the hole with a ¼-28 tap. Remove all chips and burrs
before reinstalling.
Route either of the two wires to an electrical ground on the SV-EMS-22X D37 connector. Route
the other wire to the general purpose input of your choice.
Note: If you are converting a Dynon Avionics D10/D100 product installation to a SkyView
installation, you should remove any resistor that is connected to the existing carburetor
temperature sensor. It is not needed when used with SkyView.
Rotax CHT Sensors
The Rotax CHT sensors may be connected to any general purpose input pin on the SV-EMS-
220/221’s D37, however, we recommend that they be connected to pins 4 and 22 for left and
right signals, respectively.
Crimp bare ¼” female Faston terminals (6.3x0.8 according to DIN 46247) onto the ends of two
general purpose input wires on the EMS 37-pin Main Sensor Harness. Locate the left-side CHT
sensor screwed into the bottom side cylinder head 2; slide the Faston connected to one of the
general purpose inputs onto it. Locate the left-side CHT sensor screwed into the bottom side of
cylinder head 3; slide the Faston connected to the other general purpose input onto it.
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