rev 11/14/16
GT-50 Installation/Operation Manual
WARNING!!! Do not connect this GT-50 to a Connector wired for the older style GT-50 without temperature capability. Damage will result. WARNING!!!
Installation:
Mechanical
Mount the GT-50 in any 2-1/4” instrument hole using four 6-32 screws. If you are mounting the GT-50 in an instrument panel with a thirty
degree panel tilt, be sure to set your unit as described in the Voltmeter section below.
Electrical
1) Black (Ground)
2) Yellow (Backlight Power) When power is applied to this wire the flight timer runs and the backlight is illuminated.
Connect this wire to your instrument power source so it is powered when your master switch is turned on.
3) Red (Always on Power) Connect this wire directly to your battery to power all functions except the backlight. This
wire should remain powered at all times including when the yellow wire is powered.
4) Green (Optional Temperature Probe) DO NOT connect the green wire to 12-28 Volts. Use single conductor shielded
wire (22,24 or 26 gauge). Connect the center conductor from the green wire to one of the probe wires. Connect the
shield from the other probe wire to ground at the GT-50. See OAT Probe Instructions for additional details.
Notes: 1) Both the red and yellow wires should be on fuse or breaker protected circuits. The fuses/breakers may be shared with other equipment.
The value of the fuses/breakers can be as little as 0.5 Amp.
Operation:
Modes: The GT-50 has six modes.
PRESS the (Left) Mode button the switch between modes.
PRESS and HOLD the (Left) Mode button to display the Firmware Version number.
Accelerometer Voltmeter
PRESS the (Right) Action button to display the MAX and MIN G The instrument panel tilt angle is set from the Voltmeter mode. This step
readings. is only required if you have a panel angle of 30 degrees (SONEX aircraft).
PRESS the (Center) Reset button to clear the MAX and MIN G readings. Panel tilt of less than fifteen degrees has a negligible effect on the G
reading. If power is removed from the GT-50 the panel tilt will revert to
Occasionally the GT-50 must be recalibrated if it is not reading one G the vertical panel setting of zero degrees when the power is restored.
when in level flight.
PRESS and HOLD the (Center) Reset button to switch between zero and
Level the instrument then PRESS and HOLD the (Center) Reset button thirty degrees panel angle. Once the Panel tilt angle is displayed, release
to calibrate the accelerometer to one G unit. The button must be held the button to save the value that was displayed. The angle can be either
until four dashes “----“ appear on the display then released to complete zero degrees or thirty degrees.
the calibration.
Manual Timer Automatic Flight Timer
The manual timer counts up from one second to a maximum value of The flight timer automatically runs when power is applied to connector pin
nine hours fifty nine minutes (09:59) 2. This mode is designated by a “|- “ symbol in the left most digit
location. The Flight Timer counts up from one minute (0:01) to a
PRESS the (Right) Action button to start and stop the timer. maximum value of nine hours fifty nine minutes (9:59)
PRESS the (Center) Reset button to reset the timer to zero. PRESS the (Center) Reset button to reset the flight timer to zero.
Clock Temperature (displayed only when optional OAT probe is installed)
PRESS the (Center) Reset button to set the clock. PRESS the (Right) Action button to display the MAX and MIN
Temperature readings.
PRESS and HOLD the (Center) Reset button until the colon “:” begins PRESS the (Center) Reset button to clear the MAX and MIN Temperature
flashing to switch between 12 and 24 hour clock modes. readings.
PRESS the (Right) Action button to adjust the hours or minutes when PRESS and HOLD the (Center) Reset button to change temperature units
they are flashing. between Fahrenheit and Celsius.
Specifications: Need Help?
Input Voltage: 9-28 Volts DC
Power Consumption: at 14V -
support@fdatasystems.com
Backlight on: 0.025 Amps, Backlight Off: 0.0008 Amps – It wont run down your Plane’s Battery or call (831) 325-3131
Dimensions: Fits a Standard 2-1/4” instrument hole.
Overall Width and Height 2.375", Depth behind panel .75 “ to back of connector
Weight: 3.0 oz.
