Entering a Method
Entering a Method
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The down cursor (▼ ) brings you to the next display:
PRESSURIZ.TIME
Pressurization Time specifies the time that gas is allowed to enter the vial
through the sampling needle to build up additional pressure in the vial. Key in
the desired time on the numeric keypad followed by Enter.
Use the down cursor (
▼ ) to scroll to the next display:
LOOP FILL TIME
The Loop Fill Time is the time during which the vent valve is open. The gases in
the sample vial travel through the sample loop and are vented to the outside.
This fills the sample loop with a precise aliquot of headspace gas. Key in the
desired time with the numeric keypad followed by Enter.
Use the down cursor key (
▼ ) to scroll to the next display:
LOOP EQ. TIME
The Loop Equilibration Time is the time after the vent valve closes during
which the gases in the sample loop equilibrate with the pressure and
temperature of the sample loop. Key in the desired value using the numeric
keypad followed by Enter.
Use the down cursor key (
▼ ) to scroll to the last display:
INJECT TIME
The Inject Time is the time in which the sample valve is open and the gases in
the sample loop are swept into the GC. Key in the desired value from the
numeric keypad followed by Enter.
These times may be checked on the display and changed while the headspace
sampler is running samples. Changes are applied to the next vial analyzed. You
cannot change parameters for a vial currently being sampled. The keys
involved are locked.
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