TruTrak Gemini ADI - Manual (Page 6)

6
Instrument
Installation
Mounting
Considerations
The
Gemini
ADI
unit
is
designed
to
mount
in
the
aircraft
instrument
panel.
Maximum
recommended
viewing
angle
should
be
no
more
than
20
deg
.
The
maximum
mounting
angle
the
instrument
can
accommodate
is
10
degrees
longitudinal
axis
and
0
degrees
lateral
axis.
The
primary
unit
location
should
minimize
pilot
head
movement
when
transitioning
between
looking
outside
of
the
cockpit
and
viewing/operating
the
instrument.
The
location
should
be
such
that
the
instrument
is
not
blocked
by
the
glare
shield
on
top,
or
by
the
throttles,
control
yoke,
etc.
on
the
bottom.
Use
aircraft
installation
standards
for
mounting
and
support
of
the
instrument.
Wiring
Considerations
Use
AWG
#24
or
larger
wire
for
all
connections
unless
otherwise
specified.
The
standard
solder
pin
contacts
supplied
in
the
connector
kit
are
compatible
with
up
to
AWG
#18
wire.
In
cases
where
some
installations
have
more
than
one
component
sharing
a
common
circuit
breaker,
sizing
and
wire
gauge
is
based
on
length
of
wiring
and
current
draw
on
units.
In
these
cases,
a
larger
gauge
wire
such
as
AWG
#20
may
be
needed
for
power
connections.
Do
not
attach
any
wires
to
the
outside
of
the
instrument
or
route
high
current
wires
within
six
(6)
inches
of
the
programmer.
Ensure
that
routing
of
the
wiring
is
not
exposed
to
sources
of
heat,
RF
or
EM
interference.
Check
that
there
is
ample
space
for
the
cabling
and
mating
connectors.
Avoid
sharp
bends
in
cabling
and
routing
near
aircraft
control
cables.
Do
not
route
the
COM
antenna
coax
near
any
instrument
components.
The
Gemini
should
be
connected
to
the
avionics
master
bus,
not
the
battery
master
bus.
This
way
the
instrument
is
in
a
powered
down
state
during
engine
starting.
Pitot
and
Static
Connections
The
preferred
method
of
connecting
the
static
line
is
a
tee
fitting
near
the
aircraft’s
altimeter.
The
static
line
requires
due
care
in
its
installation
as
excessive
lag
or
insufficient
static
orifices
can
cause
discrepancies
in
instrument
information.
The
importance
of
a
good
static
port
and
line
cannot
be
overstated.
In
some
cases
problems
can
be
caused
by
having
a
large
number
of
devices
connected
to
a
single,
insufficient,
static
port.
In
other
cases,
the
static
line
itself
is
adequate
but
there
are
one
or
more
devices
connected
to
the