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6
3 Beginning a New Test
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.
You now have the option of entering a description
for the test location, if you wish to use numbers
press the “function” button. Push the right arrow
button when you are ready to proceed.
Choose between using a Draeger chemical reagent
tube or Draeger oil Impactor in the test port.
For further details on alternative chemical reagent
tubes see appendices 2 and 3.
For breathing-air tests the standard option is to
select a Draeger oil Impactor.