I
NSTALLATION
Quick Guide to the 3800 Keyboard and Display
CP-3800 GC Getting Started Manual
23
Note that all heated zones, with the exception of the column oven, are
OFF when the 3800 is first powered up.
IN JE C TO R
The 1079 method uses three pages of screen displays, a page for setting the
injector temperature (isothermal or temperature programmed), a page for
fixed parameters such as coolant ON / OFF, and a page for programming the
split state of the injector. Note that the injector is identified by its model
number and location.
ACTIVE
METHOD
EDIT
METHOD
CTRL
RUN
TIME
END
TIME
01 2: %
,)#" 01 2: %
*" : -
01 2: %
,)#" 01 2: %
*" : -
- 34 5 6
- 34 5 6
*
*
*
*
"
"
"
"
"
"
%
%
>>
The above screen represents the temperature settings for the 1079 injector,
operated in typical isothermal mode. If the injector were temperature
programmed, a new line would be added to add a ramp rate and additional
hold time.
The other important 1079 parameter to program is the split state, which is
programmed differently depending on whether the 1079 is equipped with
manual pneumatics or EFC. The split state controls the flow of carrier gas
through the injector during the analytical run. When the split state is OFF,
most of the sample injected is directed onto the column. When the split state
is ON, the sample is split in the injector with typically the smaller fraction
entering the column and the larger fraction being vented.
