Factair F4500 Operating Manual page 14

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.
Input the reading from the tube and press the
arrow icon in the top right hand corner of the
screen.
For the water tube reading there is an on-screen
3
note if you selected the 50 to 2000mg/m scale to
confirm that the reading you enter will be
automatically multiplied by 10 to provide the
corrected result for this range.
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