Inficon HAPSITE Smart, Operating Manual

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HAPSITE Smart Operating Manual
CAUTION
All unknown samples should first be collected with the
Survey Method to estimate the total VOC response. The
Survey Method allows the tester to gain knowledge of
how far away to hold the probe from the sample and if a
concentrator needs to be used.
The sampling procedure for a Survey run is to first clear the survey line and obtain
a background signal level by sampling for 1 minute away from the suspected VOC
source. The source should be sampled for up to 1 minute, depending on the result.
If the TIC count remains under 5,000,000 then continue to sample for up to 1
minute. If the TIC count increases above 5,000,000, sample for 15 seconds and
then allow the TIC graph to return to the baseline level. If the TIC count increases
above 10,000,000 then move back from the source or discontinue sampling. Allow
the TIC to return to the background level before stopping the run. See
Figure 6-1,
Running Survey Method from the Front Panel, on page 6-2 .
HINT: Refer to section 3.3, Survey Mode, on page 3-18 and section 5.2, Survey
Mode, on page 5-8 for additional information on running methods.
Figure 6-1 Running Survey Method from the Front Panel
MAX . . . . . . . . . . . . . . . . . . . . . . . . . Is the maximum signal count for the TIC in
the window. The TIC is an indication of the
level of VOCs present at the source.
TIC . . . . . . . . . . . . . . . . . . . . . . . . . . Is the current TIC level.
RT . . . . . . . . . . . . . . . . . . . . . . . . . . the current elapsed time of the run.
TIC Level