MoTeC ADL2 EDL2 - Manual (Page 19)

MoTeC Overview 17
Specifications
For full specifications see Appendix D: Input Characteristics.
Wide Band Lambda Inputs
The two high accuracy, fully temperature compensated Wide Band Air Fuel
Ratio measurement inputs can be used if the Lambda Option is enabled.
These inputs connect directly to a MoTeC 4 wire Wide Band Lambda Sensor
and are accurate to 1.5% up to 1.2 Lambda under all load and temperature
conditions.
Note that this is the Bosch LSM sensor and not the 5 wire Bosch LSU sensor.
Note that NTK Lambda sensors should be connected to an Analog Voltage
input via the appropriate amplifier.
Switch Inputs
The 4 switch inputs are generally used for the external switches required to
operate the ADL2 display. They can also be connected to a brake switch or
other switch.
These inputs have a 4700 ohm resistor connected internally from the input pin
to the 5V sensor supply so that a switch can be simply connected between
the input pin and 0 volts.
Options
All four inputs are available irrespective of which options are enabled.
Specifications
For full specifications see Appendix D: Input Characteristics.
Digital Inputs
The 4 digital inputs are identically to the switch inputs except that they include
the following additional measurement methods:
• Frequency: The frequency of the input signal is measured
• Period: The time between successive pulses is measured
• Pulse width: The low time of the pulse is measured
• Count: Counts the number of pulses