Advanced Functions
User Information
69
The value range is from 0 to 99 °C.
Vial Eq Step
Entering a value for the Vial Eq Step increment
increases the stabilization time by that many minutes for the
second vial and each subsequent vial in the present method.
The value range is 0.0 to 99.9 minutes.
Procedure
When enabled, use the cursor keys to scroll to the oven
temperature and stabilize time step increments:
Change the increments from the numeric keypad and then press
the
Enter
key to set the change in value.
•
Do not allow the maximum vial temperature to be closer than
10 °C to the boiling point of any solvent in the sample.
•
The Vial Temp Incr function increases the temperature from
run to run in the headspace vial only. The loop and transfer
line temperatures remain at their original setpoints. Be sure
to set the loop and transfer line temperatures so they exceed
the highest temperature the vial is programmed to reach.
Take note of any maximum temperature on the transfer line
you are using.
•
Chain methods are not allowed if either the Vial Temp Incr or
the Vial Equilibration Incr is set to a non-zero value.
•
If the combination of oven temperature step and number of
vials sets the oven temperature above the maximum
temperature allowed (for example, the open temperature is
155 °C, the step is 10 °C, and there are ten vials), the HS
displays a warning message. If you start the run anyway, the
analysis stops when the oven reaches 230 °C
medium_standard.book Page 69 Tuesday, February 17, 2004 10:14 AM
