Owner manual
Copyright © 2003 Eagle Tree Systems, LLC   
http://www.eagletreesystems.com 
Page 10 
•  If ferrites do not correct the problem, it may be necessary to disconnect the Y cables from your recorder, and 
not record servo positions. This would be an extreme case, however.  Note that if you have to take this step, it is necessary 
to power the recorder from a separate backup battery as described below. 
Issue: RPM is not working correctly 
Solutions: 
•  Make sure you have the writing on the RPM sensor facing away from the red lined side of the magnets. 
•  Make sure that under Choose What to Log in the app, you have checked RPM. 
•  Make sure that the parameters in the Calibrate Speed to RPM in the app are set up correctly. 
•  Make sure that the RPM sensor is plugged into the correct slot on the recorder (should be the bottom slot next to the temp 
sensors). 
•  Connect the recorder to the computer and launch the app.  Then, choose Tools->Live Mode.  Make sure that the RPM gauge 
is displayed, and spin the magnets, or wave the magnets by hand in front of the sensor. Try both sides of the magnets and 
both sides of the sensor. See if the RPM reading jumps.  
Issue: The recorder seems to stop recording mid-race. 
Solution: The recorder shuts off if it detects a very low battery for an extended period of time. Download the race data, and if you 
see the battery voltage is below 4.3 volts constantly, the recorder likely shut off. Charge or replace your battery, or if the problem 
persists, install the optional battery backup harness. Also, if you have the recorder set up to pause when its buffer is full, and the 
buffer becomes full during your run, the recorder will stop recording. 
Car Data Recorder Specifications 
Operational Voltage: 4.35V to 7.0V 
Current Draw: < 35 mA @ 4.8 V (with no plugged in expanders) 
Temperature: Dual inputs, 0 degrees F to 424 degrees F 
RPM range: approx 100 RPM to >50,000 RPM 
Weight: Recorder, 2 Y cables, RPM and temperature sensor, approximately 1 oz. 
Measurements: 1.97” x 1.38” x 0.67” 
Record Time: Varies with sample rate, parameters being recorded, and “activeness” of your driving.  
Limited Warranty 
Eagle Tree Systems, LLC, warrants the Car Data Recorder to be free from defects in materials and workmanship for a period of one 
(1) year from the date of original purchase. This warranty is nontransferable. If your unit requires warranty service during this 
period, we will replace or repair it at our option. Shipping cost to us is your responsibility. 
To obtain warranty service, contact us by phone, fax or email to request an RMA number. No returns will be accepted without this 
number.  
This limited warranty does not cover: 
•  The Software included with the Car Data Recorder. See the Software license agreement for more information on Software 
restrictions. 
•  Problems that result from: 
o  External causes such as accident, abuse, misuse, or problems with electrical power  
o  Servicing not authorized by us 
o  Usage that is not in accordance with product instructions 
o  Failure to follow the product instructions 
THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY 
FROM STATE TO STATE (OR JURISDICTION TO JURISDICTION). OUR RESPONSIBILITY FOR MALFUNCITONS AND 
DEFECTS IN HARDWARE IS LIMITED TO REPAIR AND REPLACEMENT AS SET FORTH IN THIS WARRANTY 
STATEMENT. ALL EXPRESS AND IMPLIED WARRANTIES FOR THE PRODUCT, INCLUDING, BUT NOT LIMITED TO, 
ANY IMPLIED WARRANTIES AND CONDITIONS OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 
PURPOSE, ARE LIMITED IN TIME TO THE TERM OF THE LIMITED WARRANTY PERIOD AS DESCRIBED ABOVE. NO 
WARRANTIES, WHETHER EXPRESS OR IMPLIED, WILL APPLY AFTER THE LIMITED WARRANTY PERIOD HAS 
EXPIRED. SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS, SO THIS 
LIMITATION MAY NOT APPLY TO YOU. 










