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Copyright © 2003 Eagle Tree Systems, LLC 

 

http://www.eagletreesystems.com 

 

 

 

Instruction Manual for the Data Recorder Dual Channel A/D Expander V2

 

Document Version 1.9 

 

Model # AD-02 

 

Thank you for your purchase!   This instruction manual will guide you through the installation and operation of your Dual A/D Expander V2.   

Please 

read the entire manual carefully before proceeding

.    If, after you read the manual, you have further questions or problems, see the Support page on 

http://www.eagletreesystems.com

 for additional information, or email us at support@eagletreesystems.com. 

 

Supported Products 
 

The A/D Expander is compatible with Eagle Tree Systems Flight Data Recorder  Pro and V2, Car Data Recorders and Boat Data 

Recorders

 

with 

FIRMWARE version 4.XX or higher

.   This can be checked by choosing “Tools, Firmware Control” in the application, with the Recorder 

connected to USB.    If you have firmware that is 3.XX or below, email 

support@eagletreesystems.com

 for hardware upgrade information.   

 
To use the A/D Expander, you need to download Windows Application Software version 4.44 or higher from the Support page of our website.  To 
check your app version, choose “Help, About.”   After installing the correct version of the application, please update the Recorder firmware by 
connecting the Recorder to USB, and choosing “Tools, Firmware Control” in the application, and clicking the “Update Firmware” button. 
 
If you have purchased a 

Secondary or Tertiary Dual A/D Expander

, allowing up to 6 channels of A/D to be used simultaneously, please refer to 

the Secondary Expander instructions for additional information, after reading the instructions below. 
 

 

Packing List 
 

Your package should include the following:  The Dual A/D Expander, and a printed version of this manual.   Please check the support page of our website for updates to 
this manual which may have been made after it was printed. 

 
How the A/D Expander Works 
 

The A/D Expander measures two channels of analog input, ranging from 0-4V.     The input can exceed 4V (up to 6V maximum), but values over 4V will read as 
maximum.      The maximum resolution is 15 bit. 

 
Connecting the A/D Expander to the Recorder 

 
The 4 wire connector attached to the A/D Expander plugs into either the G-Force or EGT (“Thermo”) port of your Data Recorder as shown in Figure 1.   Make sure that 
you connect it in the correct location on the recorder, and with the correct polarity!    NOTE: If you are already using both EGT and G-Force expanders, email us at 

support@eagletreesystems.com

 for more info. 

 

Calibrating the A/D Expander 
 

We offer fee based customization to our Windows software for calibrating the data from the 
Expander, for  your specific application.    Email 

support@eagletreesystems.com

 for details. 

 

Pinouts of the A/D Expander 

 
There are two 3 pin input leads (with Futaba style female connectors) attached to the expander.   
With each of these, the connections are as follows: 
 
Red - 4V regulated output (maximum around 50 mA, overload protected) 
Black – Ground 
White – Analog In, 0-4V (don’t exceed 6V) 

 
Setting up the Windows Application for the A/D Expander 

 
First, make sure you have Data Recorder Application version 4.44 or greater, as described above.  
 
To set up the Dual A/D Expander, simply click “Tools, Configure Secondary Expanders” and click “Dual A/D Expander, ID 1 (or Dual A/D Expander with No ID)” in 
one of the 4 Expander Windows.  Then, click OK.    
 
If you have purchased a Secondary A/D Expander, see the additional instructions that should have been included with your Secondary Expander. 
 

Logging Data with the A/D Expander 

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