User manual

GPX Pro 44
© 2009 XT Racing
If you calibrate it before it is mounted, you will be measuring the full travel of the device. That is
OK, but it does not tell you what the limits of travel are when it is mounted on the vehicle. It may
not be possible to fully extend and compress the potentiometer when it is vehicle-mounted.
Make sure you choose a potentiometer that has more travel than can occur when it is mounted.
Otherwise, the vehicle may compress or extend it beyond its physical limits and will probably
destroy it.
There is an optional calibration setting, called sag, which you may calibrate if you wish. This
calibration point represents the "at rest" (neutral) position of the slider. This is always done after
it is mounted on the vehicle, and should be calibrated with the rider/driver in position in the
vehicle. When the sag is calibrated, GPStudio can indicate when the suspension travel is
compressed or expanded, and how much, relative to this neutral position.
1.7.3.8 Switch Input
A switch input may be connected to any of the analog channels. It is an input which only can be
"on" or "off".
You can specify what text you want displayed:
In addition, you can specify the polarity of the text:
Normal polarity means the first text item is displayed for a low voltage, and the second item
for a high voltage.
Reverse polarity means the first text item is displayed for a high voltage, and the second item
for a low voltage.
To calibrate a switch input, you are prompted first to go to the "off" position, then the "on"
position. At each position, press Select to calibrate to that voltage. A switch that is properly
connected to the GPX should show a significantly different voltage in the "off" and "on" positions.
A switch input can have an alarm associated with it. See the section on Alarms.
1.7.4 Generic Types of Inputs
If you select Custom as the type of DAQ input, you have a choice from the following menu: