TSI Incorporated PORTACOUNT PRO+ 8038, Operation And Service Manual

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Operating Modes and User Interface 49
Realtime
Press Realtime [ ] to view a graph showing real-time fit
factors or perform an ambient concentration check.
The real-time fit factor display is generally used for respirator
training and troubleshooting. It allows a test subject to experiment
with strap tension and other adjustments while watching the effect
these efforts have in real time.
The test subject learns how each adjustment affects the fit, and
learns how to achieve a fit that is comfortable and has minimum
leakage.
Note
This feature is intended for training. It should not be used
immediately before a fit test.
Using the feature to help the test
subject don the respirator immediately before the official fit test
defeats one of the main purposes of fit testing: to prove that the test
subject knows how to don the mask properly without help. Use the
Real-time Fit Factor feature for training and practice only.
You can use the real-time fit factor display prior to a fit test as
long as you have the test subject remove the mask and put it on
again (without the use of the real time display or other
assistance) before the final test.
Before starting the real-time fit factor display, have the test
subject put on the respirator and make sure it is properly attached
to the PortaCount Pro
Respirator Fit Tester.
When you press Realtime [ ] the Real-Time Fit Factor Display
appears.