Factair SAFE-AIR TESTER F4501 Operating Manual page 10

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.
The unit has 3 breathing-air test programmes
available: High Pressure Charging Compressors
(top right) High Pressure Cylinders up to and
including 200bar and High Pressure Cylinders
above 200bar. All of the high-pressure tests
require the use of the F3002 regulator which has
a DIN connector that can accept input pressures
up to 300bar.
9 FAC QAM 190 Issue D 09/18