The AG6T is a full
service Aircraft Annunciator, Fuel Gauge, Oil Level Gauge, Volt Meter & Current
Meter. The annunciator will display many different
aircraft warnings. All devices feature user programmable alarms.
The AG6T utilizes a push-button LCD display that is backlight with a 3 color LED. All functions
are fully programmable by the user. The push-button/display can be used
for programming, acknowledging the alarms, and paging thru up to 16 different
screens or "annunciator points". The AG6T can automatically scan thru each
screen or it can be done manually using the push-button. The pilot
has the ability to mask or unmask annoyance alarms.
NOTE: Input
devices not included.
It is up to the user to provide input devices such as fuel senders, shunts, oil
level sensors and input switches to drive the AG6T.
INSTALLATION MADE EASY
DISPLAY & PUSH BUTTON
Display can be easily mounted in the panel anywhere you can make a
square hole. It is
a snap to install !
Measures 1.25" wide by 1.0625" high by 1.375" deep, including bezel
housing
SIGNAL INPUT BOARD
Signal input/driver board mounts lower in the instrument panel
for easier wiring.
This permits a better location of inputs & connections in a
crowded aircraft. Measures
3.5" wide by 2.5" high.
RIBBON CABLE
The 18" ribbon cable makes it easy to install and remove if necessary.
Plugs are provided at both ends.
FEATURES:
INPUTS (pins 1 thru 6)
The AG6T will
accept up to 6 input signals. (If the audio output is used, only 5 inputs are
available.)
All inputs will
accept signal ranges from (0 to 0.200V) to (0 to 16.383V). Inputs can come
from simple on/off switches, aircraft shunts, resistive sensors such as fuel
senders, or analog signals from other equipment. The AG6T is compatible
with capacitance type fuel or oil senders as long as the sender's output is a
current or voltage proportional to the fuel or oil level quantity. All inputs can be
configured for a filter or delay. These filter time constants are fully
programmable. Filtering may be used to eliminate noisy signals and/or
lengthen signal response times.
INPUTS
(pins 13 thru 24)
Pins 13 thru 24 are
dedicated to thermocouple inputs. You can have as many as 6 thermocouples
(J or K type, depending upon model number).
NOTE: Input
devices are NOT included. It is up to the user to provide input devices
such as fuel senders, shunts, and switches to drive the AG6.
SHUNT INPUT
There is one special input for a
shunt. It can be used to monitor aircraft current. This shunt can be placed in aircraft's
plus or minus leg of the power circuit. No isolation is necessary. This input will accept
signals from (0to 0.050V) to (0 to 0.250V). This is the range of most
aircraft shunts. NOTE: If this input is utilized, input terminal
#5 cannot be used. The shunt signal will become input signal #5.
ALARMS
When there is a valid alarm, the display screen will blink. If the audio output
option is selected, it also will sound. The pilot can temporarily mask or
switch off any annoyance alarms using the push button. When the alarm is
masked, the display depicts a little triangle in the upper right hand corner of
the screen. It can also be easily turned back on. The annunciator
features two, three, four, or five zone alarms for maximum flexibility.
All alarm set points and alarm delays are fully programmable.
Have you ever left your Fuel Pump on
too long?
The alarm delay is programmable from 0.0 to 409.0 seconds (6 Min. 49
Sec.).
This allows you to program this annunciator for a wide variety of
applications
such as this one. For this one, just wire the AG6T to your fuel
pump switch.
SOUND OUTPUT
An audio output is also provided when
there is a valid alarm. This output can be wired into the aircraft’s sound
system.
An on board amplitude adjustment is provided.
NOTE: If the sound output
option is utilized, only 5 inputs will be available. Input terminal #6 will be used
for the sound output.
DISPLAY & DIMMING
The push button display is an LCD display that is backlight with an LED. The LED
color can be green, red or yellow.
Screen colors are fully programmable. Green is used for a normal
condition, yellow for caution, and red for the alarm.
The screen brightness control can be tied to aircraft's instrument lighting dimmer.
PUSH BUTTON COMMANDS
Since the AG6T utilizes one button for entering all commands,
commands are entered in a simple combination of long and short button presses similar to Morse
code. The manual provides a cheat sheet that you may copy to include it in
the aircraft and aircraft handbook.
GAUGE CHARACTERISTICS
Operation of the fuel gauge is depicted below. When the fuel
reaches a low level caution point, the display is yellow. When the fuel
reaches the low fuel point, the display blinks red. The pilot can
acknowledge the alarm by pressing the button. The alarm will stop flashing
but will remain red. The audio output will also stop.
FUEL
GAUGE
OPERATION
EXAMPLE
as fuel is run out
The full scale and zero offset of the input signal can be programmed
for each gauge.
NOTE: The AG6T Fuel Gauges and the Low Oil Level Gauge assumes a linear input
signal is provided. Most capacitive type senders
can be calibrated to yield a linear output signal. If your sender is
calibrated linear, the AG6T will display a linear representation.
INPUT POWER
Input power is 12Vdc only. Current draw is less than 0.060A (60mA) with
the LED back light on.
OPERATION
There are two different operating modes, manual and automatic. In the
automatic mode, the AG6T automatically scans thru each point or screen and then
starts over again. The manual mode operates in a similar fashion except
that the user can use the push button to toggle thru the different screens
stopping at any screen. You can easily switch from mode to mode
using the push button.
AUTO
SCAN
EXAMPLE
PROGRAMMING ASSISTANCE
If you are NOT a gadget person and would like to
simplify the programming, order the AG6T from Aircraft Extras, Inc. web site and
request that we pre-program it you. We will contact you by e-mail or phone
and discuss the details of your project.
PROGRAMMING:
All functions are fully programmable thru the AG6T push button. Some of
the programming features are depicted below:
Display Screen & Scanning
We provide many preprogrammed screens you can choose from to make
initial programming easier.
Default (Scan thru screens automatically or manually)
Screen scan dwell time
Alarms
Display alarm only when there is a valid alarm or display the
alarm status always during normal
screen scan
Ability to mask annoyance alarms
Alarm delay time (time that the signal has to remain in the alarm zone
before it announces the alarm)
Ability to program boundary set points for each alarm zone
Inputs
Input signal filter time constant are fully programmable to filter out
noise and/or slow down signal response time
Ability to define any input signal for a given screen
Ability to invert the input signal polarity
Display
Ability to select screen color for each alarm zone
SPECIFICATIONS:
Power in:
10 to 15Vdc
(24V input power and 24V inputs are available, please ask)
Current draw:
0.6mA max. (AG6T without LED back light)
65.6mA max. (AG6T with LED back light)
Inputs:
6 inputs (0 to 16.383 volts) (5 inputs available if sound output is utilized)
Inputs from broken thermocouple wires yield a full scale reading indicating an
error for safety.
Input impedance:
36.6K Ohms (terminals 1 to 6)
Thermocouple inputs, >1M Ohms
Input terminals:
accepts 16 to 26AWG
Shunt input:
1 input, 0.05V to 0.25V full scale (If utilized, input #5 cannot be used.)
Display:
LCD with LED back light (Green, Yellow, Red)
Interconnecting
cable: 10 conductor
ribbon, 18” [457mm] long
Panel cutout for
display: 1.142in. x 0.933in. [29.0mm x
23.7mm]
Panel thickness for
display: 0.059in. to 0.157in. [1.5mm to 3.98mm]
Motherboard:
3.5” x 2.5” [88.9mm x 63.5mm] , Hole Pattern #6-32 screws, 3.2" x
2.2"[81.28mm x 55.88mm]
FUEL 
