Breathing-Air Tests- All - Factair F4504 Operating Manual

The times are set prior to the unit being supplied
but they can be adjusted as necessary.
To select the test standard or the units of
measure press the right hand icon.
In this menu you can then choose the following;
CO sample rate, pressure and temperature units
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of measure and the breathing-air test standard.
Once you have made your selection press the
arrow in the top right corner to exit. To then exit
from the configuration sub menu to the main
menu press the arrow at the top left of the
screen.

4. Breathing-Air Tests- All

Having selected the breathing-air standard
EN12021 in the configuration screen, to carry out
a test press the "begin test" icon on the main
menu
The unit will automatically calibrate the oxygen
cell against the surrounding atmosphere; the unit
therefore needs to be in a well ventilated area.
Note:- If the temperature is greater than 40°C
inside the instrument the calibration will operate
for an extended period to stabilise the Oxygen
cell.
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