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If the instrument detects that the dewpoint
meter's rate of change is still too high (>0.2 dec C
per minute) it will automatically continue the test
until this stabilises (maximum test time 15
minutes).
The Impactor can now be removed and
evaluated.
To enter the results press the corresponding icon
on the screen.
Note:- Instructions on reading the Impactor can
be found in Appendix 3 at the back of the manual.
The "test complete" screen displays all the
measurements recorded during the test. And
automatically determines whether the test was a
pass or fail against the standard displayed in the
top right corner of the screen. For water content
on high pressure tests both the measured value
3
in mg/m
and the atmospheric dewpoint are
provided.
If the test was a fail an orange exclamation mark
would be indicating those criteria which did not
meet the standard. The photograph opposite is
an example of a failed test where carbon dioxide
failed to meet the requirements of the selected
standard.
17
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