INFICON HAPSITE Smart Plus Chemical Identification System - Manual (Page 382)

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HAPSITE Smart Plus Operating Manual
SPConcFill . . . . . . . . . . . . . . . . . . . This sets the GC valves so that the sample
pump pulls the sample through the
concentrator.
SPLoopFill . . . . . . . . . . . . . . . . . . . This sets the GC valves so that the sample
pump pulls the sample through the Sample
Loop. The recommended duration is at least
60 seconds to allow for clearing the sample
line of the previous sample as well as good
mixing with the Internal Standard (if used).
SPN2DryPurge . . . . . . . . . . . . . . . . This Inlet State purges the transfer line and
concentrator system with dry N
2
before
sample injection to remove moisture.
11.5.2 GC Temperature Profile
WARNING
Only trained users should modify methods. Changing GC
temperature profiles may result in incorrect analysis.
GC Temperature Profiles (see Figure 11-18 ) specify the temperature ramp and
hold settings for the HAPSITE Method. Any profile can be edited by changing the
value in the Temp, Ramp Rate or Hold Time column. When a new profile is added,
the first value entered will force the other values to be calculated and entered
automatically. However, this automatic entry does not prohibit the values from
being edited. The Start time of each profile is automatically derived from the
preceding profile. The Ramp Time is automatically calculated based on the Ramp
Rate and Temp entries. It cannot be edited directly.
Figure 11-18 Method Editor Inlet Page: GC Temperature Profiles
The Insert key does not work for this grid. Changes to the profiles must be made
by editing the Temp, Ramp Rate or Hold Time and adding heater profiles.