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The test will now commence and the duration will
be displayed as a countdown, together with
pressure, flowrate, ambient temperature, carbon
dioxide, carbon monoxide and oxygen content.
During the test the flowmeter should be set to
simulate the requirements of the respiratory
protective device RPD.
The unit can be left until the test time has
elapsed.
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).
Once the test is complete close the flow control
valve, the readings from the Impactor can now be
entered.
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 tube readings should also then be entered,
push the button corresponding to each chemical
reagent tube / Impactor.
Содержание F4504
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