Setting and Adjustment of Controlled Heated
I
Cooling Zones on 8610C GC
INSTALLATION
Chapter:
Topic:
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'--- - - - - - - - - - - - - - - - - - - -
•
-
••
•At-a-glance"
display
""",I
also permi ts
viewing
of
aetuaI
an
d
setpoint
values
The 8610C gas chromatograph permits
easy display and adjustment of
all
controlled
zone setpoints. To view a controlled zone,
simply place the display selector switch in the
UP
position,
and depress the desired feature
pushbutton. Depending on the zone, the
following values may be displayed: the actual
value that the zone is being measured at, such
as the current temperature of column oven 1;
the
local
setpoint, which reflects the adjustable
setpoint you currently have set, which,
in
the case of column oven 1, would
be
an offset value that
could be summed with the temperature signal being sent from the data system; and the total setpoint,
which is the sumof any signal
being
sent from the data system
to
the controlled zone,
in
addition
to
any local setpoint value you have set (for example,
if
column oven 1 has a local setpoint of 50 degrees,
and the
data
system is instructing the GC
to
heat the column oven
to
100 degrees, the
total
setpoint
should display 150 degrees), Most zones
will
only display the local setpoint and actual value. Each
zone also displays
its
status
via
a light-emitting diode (LED)
that
glows when the zone
is
active.
Front view of column oven temperature display
With the display selector
toggle switch in the UP position, the
value corresponding
to
any panel
pushbutton
will
be displayed. When
the button is released, the display
will
clear the value and return
to
000
units.
TBR:RATURE
PRESSURE
Toggle switch
selects
display
of
setpoint
andactual
values
in
UP
DlR.AYs:u:lC1BJ
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SII"QlITIIICn.JIIl.
/""'-
posmon, or
~~ co=~en
ca......
CMl4
t
I
temperature
display
in
DOWN
position
OmREESCENTlQRADE
PRESSURE IN
psi
R- COLUMN OVEN
Local
serpoim
pushbuttons
TURES
------_000_0_
Total
setpcint
pusbbunces
_
0 0 0
I>
0 _
S
indican
LED
OO O IlO -
l>lUSmcotmg s
_0001>0_
Actual value pusbbuttons ----- 0 PET C C C
E IC C O O H
Controlled-zone descriptions --- L 0 DOL L SA
C -
U U
D F B B III III S
pLLNNI
FOggoO
S
I B K K V V
O L
E E
2 0
N N
C
1 2
K
