____________________________________________________________________
Page 5-84
Cirrus Perspective™ Line Maintenance Manual
Rev. E
190-00920-00
Figure
5
‐
21.
HSCM
Enabled
GEA
I/O
A
Channel
Selection
Box
6.
Make
sure
all
displayed
Current
and
Calibration
data
is
appropriate:
a.
CURRENT
DATA:
i.
VALUE
–the
instantaneous
reading
from
the
GEA
if
the
current
offset
was
zero
(any
calibration
offset
has
been
taken
out).
ii.
CURRENT
OFFSET
–the
calibration
offset
that
is
presently
loaded
on
the
channel
(this
will
be
zero
if
the
channel
has
never
been
calibrated).
iii.
CURRENT
CORRECTED
VALUE
–
the
current
output
of
the
GEA
channel
with
the
above
current
offset
applied
(what
would
be
displayed
on
the
EIS
strip
if
the
GDU
was
in
normal
mode).
If
the
channel
is
calibrated
and
the
calibration
setup
is
correct,
this
parameter
should
be
near
zero,
and
fluctuation
should
be
minimal.
Be
sure
to
take
note
of
the
range
of
fluctuation.
b.
CALIBRATION
DATA:
i.
VALUE
–the
instantaneous
current
reading
from
the
GEA
if
the
current
offset
was
zero
(any
calibration
has
been
taken
out).
ii.
CALIBRATION
OFFSET
–the
instantaneous
calculation
of
what
the
offset
should
be
in
order
to
properly
calibrate
the
channel
(assuming
the
shunt
is
properly
set
up
for
calibration,
see
step
iii.
CALIBRATION
CORRECTED
VALUE
‐
the
output
of
the
GEA
channel
if
the
above
offset
were
applied
(should
always
be
zero).
7.
Press
the
STORE
softkey,
the
following
calibrate
confirmation
box
appears:
Figure
5
‐
22.
Calibrate
Confirmation
Box
8.
Press
the
ENT
Key
to
accept
the
CALIBRATION
OFFSET
value.
The
instantaneous
CALIBRATION
OFFSET
value
is
stored
as
the
CURRENT
OFFSET.
Summary of Contents for Cirrus Perspective SR20
Page 2: ......
