XT Racing GPX Pro, Руководство пользователя

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GPX Pro Manual 44
© 2009 XT Racing
1.7.4.3 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.
1.7.4.4 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.
1.7.4.5 Switch
A switch input can have only one of two values (essentially, on or off ). See the section on Switch
Input under Typical Inputs .
1.7.5 Alarms
Temperature and switch inputs may have alarm(s) associated with them.
For a temperature channel, you may have one or two alarms set: one alarm may be set for the
temperature
exceeding a specified temperature, and another may be set for the temperature
falling below another specified temperature.
For a switch input, you can specify that the alarm occurs either when the switch is at a low voltage
(below the calibration voltage) or a high voltage (above the calibration voltage).
Alarm conditions will cause notification on either the main screen of any of the modes, or during
the running ("spinner") screen for Circuit and Point-to-point modes. (An alarm will not occur
during a drag race since the race lasts such a short period of time.)
When an alarm condition occurs, the screen will flash with the channel name and the value:
The screen will flash between its normal display and this alarm condition as long as the alarm
condition occurs.
1.7.6 General DAQ Notes
When you change the type of an analog channel, all parameters will default to a default state, and