Installation guide

SV-EMS-220/221 Installation and Configuration
SkyView System Installation Guide - Revision R 7-39
For signals that have a peak voltage of 12V or lower —such as Light Speed ignition outputs—
use the low voltage RPM inputs. These inputs require that the peak voltage goes at least 2.1
volts above ground, and crosses back down below 0.8V relative to ground to be counted as a
pulse.
For signals that have a peak voltage of 10-12V, either the Standard or Low Voltage RPM inputs
can be used.
Like the other methods above, you must know the number of pulses per revolution for your
RPM transducer.
Manifold Pressure Sensor
The Dynon Avionics Manifold Pressure Sensor (P/N 100434-000) is an integral assembly
consisting of three pins, a rubber seal, and a connector housing. Strip 3/16” insulation off the
ends of the three wires listed at right. Slide the three rubber seals onto the three wires and the
pins onto the ends of the wires. Crimp the 3 included pins onto the ends of the wires, ensuring
that the long tabs that cradle the rubber seal wrap around the seal (see picture at right for
example). For more details on preparing and crimping the Weather Pack pins, see
http://www.whiteproducts.net/faqs.shtml.
Pin
Weather
Pack Pin
Color
Function
18
C
White/red
+5 volt
Auxiliary
26
B
Green/red
Manifold
pressure
17
A
Black
Ground
Note that you may need access to the SV-EMS-220/221’s +5 volt auxiliary supply for other
sensor installations, so make allowances for breaking out the connection to other areas. Route
the three wires to the location where you would like to mount the manifold pressure sensor.
Plug the crimped pins into the included Weatherpack connector. Now, mount the manifold
pressure sensor in a secure fashion using the mounting holes on either side of the sensor.
The pressure port on the manifold pressure sensor requires 1/4” inner diameter tubing for a
secure fit. You may need to use adapters to convert down to smaller inner diameter tubing for
your specific engine. We recommend that you use pipe clamps at every transition point,
including at the sensor itself.
Table 35–Manifold Pressure Sensor Pins
Figure 34–Detail view of properly
crimped pin.
C
B
A
Figure 33–Pin insertion
(rear) view of supplied
connector.
C
A
B
Figure 32–Connection diagram for
sensor with all black wires only