vision microsystems VM1000 - 2.6 CYLINDER ANALYZER SYSTEM OPERATION; Cylinder Analyzer Modes and Leaning Engine

36
SECTION
2OPERATION
2.6 CYLINDER
ANALYZER
SYSTEM OPERATION.
The
'Diamond
Graph' engine analyzer syslem displays all cylinder
information
both
graphically
and digitally.
Full
color reference
marks are
provided
for cylinder
head
green, yellow
and redline
temperatures. Refer
to'VMl
000
OUICK REFERENCE'.
.DIAMOND
GRAPH' DISPLAY MODES:
'NORMAL
MODE' The system
powers
up
in this mode and is ready for
flight.
The
Diamond Graph syslem displays CHT between the
green,
yellow
and red range marks, left to
right,
one through six
(or
four). EGT
graphics
are displayed above the CHT redline marks where they
can be
easily observed. A
defective CHT
or
EGT
probe
will
leave the respective
graph
blank.
A flashing CHT
graph
indicates
a cylinder is
too
hot or is
being
shock
cooled.
'LEANING
MODE' Leaning mode
is
selected by
pressing'BUTTON
1'
while in'Normal
Mode'. The entire Diamond Graph
display is
temporarily
used for
precise
high resolution leaning. The display
can
be returned to the
'Normal
Mode'by
pressing'BUTTON
1'again. Notice
that
left and right
'brackels'
appear
on the sides of the
graphs
when in
'Leaning
Mode'.
'Leaning
mode'is not allowed if a EGT
probe
was defective at
power
up.
A
llashing EGT
graph
indicates that the leanest EGT has been detected.
DIGITAL
DISPLAY
MODES:
The
digital
display
shows the temperatures for each EGT and CHT
pair
and
periodically
shows the cylinder number
(ex:
'El' 'C1'
).
A warning
message
is
shown
if
a cylinder
has reached
'red
line'temperature
(ex:
'h2'
for hot
cylinder
2), or is being
'shock
cooled'
(ex:
'c3'
for
cold cylinder 3).
The
default mode at
power-up
is'PEAK DISPLAY MODE'(ex:
'Pl'
means
EGT 1 leaned
before any other
during leaning mode,
'H3'
means
CHT 3 is
the hottest)
. Selecl any
combination by
pressing'BUTTON
2'as described
below:
Displav
Mode
Cyl.
1 Pair
Cyf
.
2
Pair
Cyl.
3
Pair
Cyl.
4 Pair
Cyl.
5
Pair
Cyl.
6
Pair
Peak
Mode
5t1t0002
REv
F
Cvl. Numbers
Probes
displaved
'E1'
'C1'
EGT1
&
CHT1
,E2'
'C2'
EGT2 &
CHT2
'E3' 'Cz'.
EGT3 & CHT3
'E4'
'C2',
EGT4
& CHT4
'E5' 'C2'
EGT5
&
CHTS
(
lf
six
cyl. eng.)
'E6'
'C2'
EGTO
& CHT6
(
lf six cyl. eng.)
,P'?
'H'?
PEAK DISPTAY
MODE
VMIOOO OWNERS MANUAL