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Technical documentation:
MyChron 3 XG
4
Dimensions
87 [3,43]
48 [1,89]
4 [0,1
6]
39 [1,
54]
126 [4,96]
100 [3,94]
120 [4.72]
110 [4.33]
Speed
Power IN
CH3
CH1
CH2
CH4
GEAR
Beacon
RPM
Dimensions in millimeters [inches]
Channels 1
÷
4 pinout
Pin Function
Pin Function
1
Analog signal input 3
+V battery
2 GND
4 V
reference
Speed channel pinout
Pin Function
Pin Function
1
Speed signal input
3
+V battery
2 GND
4 Not
connected
Beacon channel pinout
Pin Function
Pin Function
1
Magnetic / Optic
codified lap
3 +V
battery
2 GND
4
Optic not codified
lap
Gear channel pinout
Pin Function
Pin Function
1
Gear signal input
3
+V battery
2 GND
4 V
reference
“Power in” channel pinout
Pin Function
Pin Function
1
9-15 V power input 3
GND
2 GND
RPM channel pinout
Pin Function
1
RPM 150-400 V input (coil)
2 GND
3
RPM 8-50 V square wave (ECU)
Note: when connecting the RPM channel, it is reminded to
connect either the RPM signal sampled from the coil or the
other one sampled from the ECU, not both. Moreover, do
not connect the RPM “coil” signal on the RPM “ECU”
input.
3 & 4 pins female Binder 712 connectors pinout: external view
Technical characteristics
General characteristics
Value
Input channels
4
Internal memory
2 Mbytes flash EPROM
PC interface
300 kbyte/sec USB port
Max sampling frequency per
channel
Up to 200 Hz
Total sampling frequency
500 Hz
Internal g-sensor
±
5g
External power
From 9 to 15 VDC
Voltage output (V reference)
4.5 V (for potentiometers)
Other characteristics
Value
MyChron 3 PG dimensions
126x92x24 mm
Display dimensions
87x48 mm
Environmental IP
65
1
3
2
1
4
3
2