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For the CO
tube (67 28521), there is an option to adjust the test volume up by a factor of two to
2
increase the number of scale points. This option can be set within the setup menu as shown below.
When entering the test results into the tester, the tube reading shall automatically be divided by two,
to reflect the actual reading as shown below.
Carbon Monoxide (CO) (67 28511)
REQUIREMENT
-
MAXIMUM READING OF 5 PPM.
The media will discolour to show the presence of carbon monoxide in the air sample. The total length
of the discoloration is the measure of concentration read directly from the scale in parts per million.
23
FAC QAM 190 Issue D 09/18
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