User manual

GPX Pro 48
© 2012 XT Racing
1.8.4.1 0-100%
A 0-100% input is an input which gets calibrated at 0% (its minimum value) and 100% (its
maximum value). This is similar to throttle position. See that section for more information.
1.8.4.2 Zero-based
A zero-based input is a generic input which has a base value (0 point). Only that point gets
calibrated.
The value displayed and used in GPStudio will be an arbitrary number above or below this 0-
point, depending on whether the voltage is higher or lower than the calibration point.
1.8.4.3 Temperature
This is for calibrating a thermistor input, with up to 10 calibration points. See the section on
Temperature under Typical Inputs for more information.
1.8.4.4 Raw
A Raw input has no calibration at all. It merely reports a number from 0 to 1023, where 0
represents 0 volts, and 1023 represents about 5.0 volts.
1.8.4.5 Switch
A switch input can have only one of two values (essentially, on or off ). See the section on Switch
Input under Typical Inputs.
1.8.4.6 Linear Analog
A "linear analog" type of input can be used for some types of analog inputs that are not explicitly
supported by the GPX.
The most important requirement of a linear analog input is that the correspondence between the
output voltage and the input's "value" must be linear.
As an example -- let us assume that you are connecting a brake pressure sensor. A typical such
sensor outputs a voltage of 0.5V at 0psi, and 3.7V at 2000psi.