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Document Version 1.1, Model # MPRV4-CONN-100, MPRV4-LEADS-100, and MPRV4-LEADS-150
Thank you for your purchase! This instruction manual will guide you through the
installation and operation of your eLogger.
Please read the entire manual carefully before proceeding. If, after you read
the manual (including the Troubleshooting sections!) you have further questions
or problems, please visit our web support page for additional support options, at
http://www.eagletreesystems.com/Support/support.html. Note that the latest
version of this manual is available in PDF form from the Support page of our
website.
Please also fill out the registration form at the end of this manual if you did not
purchase your eLogger directly from Eagle Tree Systems, so we can send you
important update information.
Key Features
Here are a few of the features of the eLogger:
Logs pack current to +/- 100 amps (150 amps with MPRV4-LEADS-150) and voltage from about 5 volts to 80
volts
Current is measured with a true Hall Effects Sensor - NOT a power robbing resistance shunt
Adjustable logging rate (from 50 samples per second to one sample every 5 minutes)
16 times the logging space of the standard eLogger V3, and lossless data compression.
available sensors for about four hours, at 10Hz.
All data are logged to permanent memory, which retains the data even when the power is removed
Fully compatible with our OSD Pro expander
Includes Y cable for throttle position logging
Great for bench monitoring of battery charging also!
Supports the PowerPanel LCD Display
Accepts optional inexpensive sensors for three Temperatures, RPM (brushless, magnetic or optical), Airspeed,
Altitude, GPS, Servo Current, and more
Software computes Wattage, mAH, etc. for complete e-flight data.
Fully Compatible with Windows 7 (32 and 64 bit), Vista, 98SE, ME, Win2K and XP™
Weighs about 0.8 oz (22 grams). Versions with Wire Leads may weigh slightly more.
Comes with our state of the art Windows virtual playback display and graphing software
Powerful Graphing software has advanced charting features, such as amps vs. volts
Internet Updatable firmware - as we add new features or (heaven forbid) have a firmware bug, the update is just a
download away! No need to ship hardware back and forth.
Full support for English and Metric units.
Software has built in English, German and Chinese languages.
Intended Uses
The eLogger was designed for use in Unmanned Radio Controlled models. It is intended to be used exclusively in model planes,
boats and cars. Using the eLogger for other purposes is not supported. Further, using the eLogger in situations where its use or
failure could result in loss of life, bodily injury or property damage is expressly prohibited. Eagle Tree Systems, LLC, is not
responsible for your use of this product, or for any damages or injuries you may cause or sustain as a result of its usage.
Copyright © 2003-2010 Eagle Tree Systems, LLC
Instruction Manual for the eLogger V4
Typically logs all

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Summary of Contents for Eagle Tree Systems eLogger V4

  • Page 1 Using the eLogger for other purposes is not supported. Further, using the eLogger in situations where its use or failure could result in loss of life, bodily injury or property damage is expressly prohibited. Eagle Tree Systems, LLC, is not responsible for your use of this product, or for any damages or injuries you may cause or sustain as a result of its usage.
  • Page 2 ES connection, so that current is flowing “backwards” through the eLogger. The eLogger will still measure current correctly in this mode! Copyright © 2003-2010 Eagle Tree Systems, LLC...
  • Page 3 Note: the Temperature Sensor lead can be easily extended with a standard servo extension cable. Measuring RPM with the eLogger, Using the Hall RPM Sensor with Magnets NOTE: see the Brushless RPM Sensor or Optical RPM Sensor instruction manuals if you are using one of those sensors. Copyright © 2003-2010 Eagle Tree Systems, LLC...
  • Page 4 If the side of the magnet with the red line is visible when on top of the previous magnet, the polarity is reversed. This should work correctly if you install our sensor backwards (printed side of sensor away from magnets). Using Existing RPM Sensors Copyright © 2003-2010 Eagle Tree Systems, LLC...
  • Page 5 (at your own risk) as there is the unlikely possibility that your hardware may be damaged by such a connection, and make sure you do an antenna down range check after making this change. Copyright © 2003-2010 Eagle Tree Systems, LLC...
  • Page 6 Connecting the eLogger to USB For your convenience, there are two types of USB connectors on the eLogger V4. A custom USB cable is included, which connects to the eLogger as shown in Figure 1. Additionally, a standard “mini” sized USB jack is built into the eLogger, if you prefer to use a IMPORTANT: Make sure you connect the custom USB plug with the correct polarity, and standard USB cable.
  • Page 7 The first time you run the software, you will be prompted to choose what parameters you wish the eLogger to record, using the dialog box shown below. Note that this dialog box can be accessed at any time, by clicking “Hardware, Choose Parameters you want to Log in the Recorder.” Copyright © 2003-2010 Eagle Tree Systems, LLC...
  • Page 8 You may find that you can get enough record time even with the highest capture rate setting. To change the Capture Rate at any time, select “Hardware, Choose Recorder Capture Rate.” Copyright © 2003-2010 Eagle Tree Systems, LLC...
  • Page 9 Or, if you want to delete a parameter, just click the “Delete” key on your keyboard. Note that some of the parameters require optional accessories, available from Eagle Tree Systems. Also note that the display area is limited, so not all parameters can be displayed at once. Numeric parameters take up less space than instruments, so more numeric parameters can be displayed at once.
  • Page 10 Page 10 Note: Select the “Metric” checkbox on this dialog if you want values displayed in metric units. Copyright © 2003-2010 Eagle Tree Systems, LLC...
  • Page 11 Two Flash Sequence – The eLogger’s memory buffer is full, or you have enabled logging triggers and the logger is not yet triggered. • Three Flash Sequence – The eLogger is connected to your PC’s USB connector, and has been recognized by the PC. After Your Recording Session Copyright © 2003-2010 Eagle Tree Systems, LLC...
  • Page 12 After downloading data, you can clear the eLogger’s memory buffer if desired, to ensure there will be enough space for your next sessions. To do this, just click the “Clear Recorder”button in the “Recorder Data Operations” section of the main software screen, or click “Data, Clear Recorder Buffer.” Combining Log Files Copyright © 2003-2010 Eagle Tree Systems, LLC...
  • Page 13 Excel should then bring up the “Text Import Wizard”. Choose the “Delimited” option, and on the next page choose “Delimited with Spaces”. The data should then load correctly in Excel. The format of each line of data in the file is: Copyright © 2003-2010 Eagle Tree Systems, LLC...
  • Page 14: Troubleshooting

    If your particular issue is not addressed by this update, or by the suggestions below, please visit our web support page for additional support options, at http://www.eagletreesystems.com/Support/support.html. Issue: My PC does not recognize the eLogger. Solution: Try to eliminate the problem in the following ways: Copyright © 2003-2010 Eagle Tree Systems, LLC...
  • Page 15 • Ensure you have connected the Y cable as shown in Figure 1. • Complete the Throttle Calibration step as described above. • Make sure you are logging throttle movements in the eLogger. Copyright © 2003-2010 Eagle Tree Systems, LLC...
  • Page 16 Limited Warranty Eagle Tree Systems, LLC, warrants the eLogger 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.
  • Page 17 Registering your product means that we can send you important updates and other notifications. Please fill out this form (or a copy) and mail or fax it to Eagle Tree Systems. Or, email the information to sales@eagletreesystems.com. Note that if you purchased your item directly from Eagle Tree Systems, this is not necessary.

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