OEM SOLUTIONS > Measurement Systems

There are three categories that make up our measurement products; Engine Data Converters, Functional Modules and Transducers, Probes, and Sensors.

EDC-33 Overview

Engine Data Converter (aka: Concentrater; DCU; EDC-33x)

The EDC-33T (Engine Data Converter) monitors analog and pulse signals from Electronics International’s and/or an OEM’s Transducers, Probes, Sensors, and Modules. The EDC-33 has 33 universal channels and provides the following inputs:

  • 13 – Temperature Channels – Measures thermocouples and differential
    voltages.
  • 9- Pressure Channels – Measures mV Pressure Transducers and high
    impedance voltages.
  • 1 – Fuel Flow Channel – Measures Fuel Flow or a pulsed input.
  • 1 – Amp Channel – Measures a high side voltage on a shunt.
  • 1 – Bus Voltage Channel – Measures Bus Voltage.
  • 4 – Resistive and/or Capacitive Fuel Level Channels – Measures pulse frequency or a voltage.
  • 2 – RPM Channels – Measures pulse frequencies.
  • 1 – Temp Comp – Cold Junction Compensator for TC measurements.
  • RS-422 Output (RS-232 Optional) – Provides raw data to the display. The display unit performs the calibrations, de-jitter, and smoothing.
EDC-33 Engine Data Converter Overview Diagram

EDC-33T-S-OEM Description:

The EDC-33T-S is our Smart EDC. It monitors all the same inputs as the EDC-33T-OEM but it manipulates the data to provide output values that are ready to be displayed. The data can be used to drive an OEM’s Instrument, Data Recorder, Data Bus, or telemetry system. The data is calibrated, de-jittered, smoothed, and accurate. The data can be displayed at the same rate as it is received with no manipulation.

Functions Available

NgStrainTail RoterGear Box TempOil TempBallon PressureRPM
NpOxygenSuper HeatLanding GearHydraulic PressureYoke PositionCarb Temp
ITTCabin AltEGTAnnunciatorsFuel LevelOil PressureVarious Switch Position
TorqueCabin Diff PressureCGTThrottleFuel PressureOATMany Others, Contact EI
G-SensorMain RotorAngle of AttackAmpsFuel FlowCHT
VibrationFrequencyFlap PositionIATVacuumDC Volts
Elevator TrimAileron TrimRudder TrimTITManifold PressureAC Volts
NgStrainTail RoterGear Box TempOil TempBallon PressureRPM
NpOxygenSuper HeatLanding GearHydraulic PressureYoke PositionCarb Temp
ITTCabin AltEGTAnnunciatorsFuel LevelOil PressureVarious Switch Position
TorqueCabin Diff PressureCGTThrottleFuel PressureOATMany Others, Contact EI
G-SensorMain RotorAngle of AttackAmpsFuel FlowCHT
VibrationFrequencyFlap PositionIATVacuumDC Volts
Elevator TrimAileron TrimRudder TrimTITManifold PressureAC Volts

Smart Conversions

Processed and Calibrated Data Out

  • Analog and pulse signals are received and processed using an array of algorithms that massage the data into readable engineering units.
  • The EDC can provide simple linear conversions or mapped linearization for non-linear inputs or complex calculations.
  • Processed data is output via a number of serial protocols.
  • A receiving display unit only has to display the processed data as it is received.

Optimal Solution for Custom Monitoring Applications

  • Bluetooth capable for wireless in-field calibration.
  • The formatted data provides an easy integration to any display head without further processing.

Specifications

Dimensions
5.85” L x 3.71” W x 2.35” H

Weight
1.0 Lb

Power Requirements
7.5 to 50 Volts
Typical: 0.1 amps @ 12 Volts

Certifications
FAA TSO’d

Typical Input Configurations

  • Model EDC-33P: 1-Volt Channel, 1-Amp Channel, 1-Fuel Flow Channel, 6-Pressure Channels, 17-Temp Channels, 4-Resistive Fuel Level Channels, 4-Capacitive Fuel Level Channels and 2-RPM Channels.
  • Model EDC-33T-XX: 1-Volt Channel, 1-Amp Channel, 1-Fuel Flow Channel, 9-Pressure Channels, 13-Temp Channels, 4-Resistive Fuel Level Channels or 4-Capacitive Fuel Level Channels and 2-RPM Channels.

Note: For both models, Temp, Fuel Level and Pressure channels can be used instead to monitor other functions or annunciators.

EDC-33P Specifications

Functional Modules

Description:

Functional Modules are used to monitor unique signals that may not be provided by the EDC-33. The outputs from these modules are used to drive one of the inputs on the EDC-33. Some of the Functional Modules available are listed below:

  • FM-VA-3 – Measures up to three shunts.
  • FLAM-4 – Measures and combines up to four capacitive probes into one measurement.
  • FFDM-1 – Measures both the feed and return flow of fuel to a pressure carburetor and outputs the flow to the engine.

Transducers, Probes and Sensors

Electronics International provides an extensive list of transducers, probes and sensors used to monitor most functions found in an aircraft. Some of the units available are listed below:

Temperature Probes

We provide many different types of temp probes with a significant list of fittings. Some of the applications are EGT, TIT, TOT, CHT, Oil T, Fuel T, Carb T, Induction T, Intercooler T, OAT, Cowl T and more.

Pressure Transducers

Our pressure transducers range from a few inches of water to 3000 psi. We can measure absolute, differential, gauge, and vacuum pressure.

Fuel Flow Transducers

We designed our own line of TSO’d fuel flow transducers. Flow rates range from 0.1 to 250+ gph.

Shunts

We provide a 100 Amp, 50mV shunt and a 300 Amp, 50mV shunt. These shunts cover most requirements for any aircraft.

Fuel Level Probes

We provide both capacitive and magnetic float fuel level probes. These probes can be configured for an OEM’s application.

Contact Us

Bring Us Your Project

Contact our OEM Manager Dan Bennett today at DBennett@iFlyEi.com to discover solutions for your application.