Dynon Avionics SkyView System Installation Guide User Manual

Page 278

Accessory Installation and Configuration

15-8

SkyView System Installation Guide - Revision S

Capacitance-to-Voltage Converter Installation and Configuration

Dynon Avionics’ Capacitance-to-Voltage Converter (Dynon P/N 100654-000) is suitable for
general use with most capacitive plate fuel level sensors. It accepts an input via a female BNC
and outputs a DC voltage signal that can be read by the SV-EMS-220/221. It requires 10 to 15
volts DC for power and draws minimal current. We recommend that you connect the
Capacitance-to-Voltage Converter to the SV-EMS-220/221 for power as shown in the table
below. It will also work properly when connected directly to standard 12 volt DC aircraft power.
If your aircraft runs on 24 volt DC power, you must connect the Capacitance-to-Voltage
Converter to the SV-EMS-220/221 for its power source. Voltage inputs higher than 15 volts DC
will damage the device.

General Installation Recommendations

Connect the female BNC to the male BNC included with your capacitive fuel level sensor.
Connect the wires as shown in the table to an enhanced general purpose input on the SV-EMS-
220/221. If you need to extend the wire beyond the supplied length, we recommend avionics
grade 22 AWG wire with Tefzel® type insulation.

Refer to the Fuel Level Sensor Section for EMS pin-out information when connecting this
product to your SV-EMS-220/221.

This section walks you through the general steps to install and calibrate. You must configure the
input type on the SV-EMS-220/221 to capacitive sender before calibrating this product. Refer to
the EMS Sensor Definitions, Mapping, and Settings Section for configuration instructions and
the EMS Sensor Calibration Section for calibration procedures.

Wire

SV-EMS-220/221

Pin

Function

Black

Any of 5, 13, 16,

17, or 30

Ground

White

Any of 8, 22, 23,

or 31

Capacitance converter

output to EMS fuel level

input (0V DC to 5V DC)

Red

12V DC Power (normally

used for fuel flow)

Table 55 – Capacitance-to-Voltage Converter Wiring