GTX 330/330D Installation Manual 190-00207-02
Page 5-16 Rev. U
SENSE
The sense setting sets the logic level to HIGH or LOW. With the sense set to HIGH the unit will go into
ground mode when Pin 17 (SQUAT SWITCH IN) is pulled high. With the sense set to LOW the unit will
go into ground mode when Pin 17 (SQUAT SWITCH IN) is pulled low.
The sense setting (HIGH or LOW) does not affect the operation of the External Switch
State Page. Refer to
Section 5.2.20 for information about the External Switch State Page.
DELAY TIME
This is the number of seconds the aircraft must be on the ground before the GTX 330 automatically
switches to GND mode when it has a means of determining the aircraft is on the ground. It has a range of
0 (zero) seconds to 99 seconds, with the default set to 24 seconds.
AUTO FLIGHT TIMER
Available choices are MAN, CLEAR and ACCUM. Selecting CLEAR resets flight time to zero and starts
the flight timer when lift off is sensed.
5.2.12 T
emperature Page
SENSOR INSTALLED
Sets the Sensor to YES or NO. Default is NO.
UNITS
Sets the units to degrees Fahrenheit or Centigrade. Default is degrees C.
5.2.13 Mode S Address Entry Pages
It is VERY important to enter the Mode S address correctly in the GTX 330.
When the unit is turned on for the first time, or an invalid address is recognized, the unit prompts the user
to enter a valid aircraft address.
Once the aircraft address is entered, the unit remains on in the same mode as before.
Table 5-18 Auto Flight Timer Selections
SELECTION DESCRIPTION
MAN
Manual selection. DEFAULT. Flight timer START/STOP is controlled
manually by the pilot.
CLEAR Automated flight timer START/STOP resets to zero at every lift off.
ACCUM
Automated flight timer START/STOP accumulates, meaning, it continues
counting up at lift off.
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