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                                                                          Technical documentation: 

MyChron 3 XG LOG 

– Version 1.07 

1

TECHNICAL DOCUMENTATION

9/06/2005

GAUGE 

Notes: 

MyChron 3 XG LOG

 technical documentation, dimensions 

and pinout – 

Version 1.07

 

MyChron 3 XG 

LOG 

 

Internal lateral accelerometer

CH2

CH3

CH4

CH1

Speed

Beacon

RPM

CH5

ECU

Power

 

Figure 1: MyChron 3 XG LOG 

 

Introduction 

 

MyChron 3 XG LOG

 represents the perfect synthesis between MyChron 3 

Gold XG and MyChron 3 LOG advanced for car applications: this new 
logger merges the functionalities and the features of those 2 previous 
loggers and constitutes a milestone moment in AIM data logger history. 
 

MyChron 3 XG LOG

 monitors and displays RPM, 5 fully configurable 

analog inputs (pressure, temperature, potentiometers, Lambda probe and 
Pitot tube, speed sensors), 2 speed inputs, internal lateral G-sensor (to 
map tracks), gear number and lap (split) times. 
 

MyChron 3 XG LOG

 is interfaceable with the most common ECU, like 

Bosch, Carmo, Efi, MecTronic, MoTec and others, through an 

RS232 

cable

 or a 

CAN cable

 (connected to the gauge ECU-RPM-POWER input) 

to sample the data out coming from the ECU. 
To have a complete list of compatibles ECUs, communication protocol and 
connection with AIM logger, please refer to “

documents

” page of our 

website 

www.aim-sportline.com

, where You find a dedicated datasheet 

called ECU-AIM logger. 
 
The logger records the following parameters: 

  5 analog inputs: pressure and temperature sensors (VDO, thermo-

resistors, thermocouples), potentiometers (linear and circular), 
Lambda probe and Pitot tube; 

  lap and split times; 

  2 speed inputs; 

  Internal lateral G-sensor to map tracks; 

 Gear 

number; 

 Logger’s 

temperature; 

  All the channels acquired from the engine’s ECU. 

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