Factair F4500, Operating Manual

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To enter press the right hand side (Set) icon use the keypad to enter the required value, press the
right arrow to return. The (Reset) button will automatically reset the system pressure back to the
measured pressure.
Press the arrow key to proceed.
We can now confirm the flow and pressure is
adequate for your respiratory protective device.
Adjust the system’s flow control valve so that the
flow meter registers the required level*, check
the pressure is sufficient for the breathing-air
equipment being used. It is recommended that
this flow is left running for the duration of the
test to simulate the conditions of use. Press the
arrow key to proceed if the flow and pressure
meet the minimum requirements for your RPD.
*Note:- At high flow rates hearing protection should be considered.
Carry out the odour test and smell the air
exhausted from the sintered outlet. If there is a
serious odour problem, fail the sample at this
point of the test by pressing the ‘fail’ button.
Initiating flows of seriously contaminated air
could result in damage to the instrument. If the
odour test is satisfactory, press the ‘pass’ button.
The instrument will now commence a 5-minute
purge sequence, during which time an airflow will
be passed through the test ports and across the
electronic cells. This clears contaminants from
previous tests and ensures that a representative
sample is being tested.