TSI Instruments N95-Companion 8095, Руководство по эксплуатации и обслуживанию

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17
Chapter 3
Fit Testing with the N95-Companion and the
P
ORTA
C
OUNT
Plus
Introduction
Before you begin fit testing, during the time the particle generator is
stabilizing the room environment, turn on the P
ORTA
C
OUNT
Plus and allow
it to warm up. Be sure to perform the daily checks! Refer to Chapter 4,
Maintenance , for daily check instructions.
If your fit test subject is a smoker, make sure that he or she has not smoked
for
at least half an hour before starting the fit test.
Note : The N95-Companion has no power supply of its own, but is powered
by the P
ORTA
C
OUNT
Plus. Because the N95-Companion increases
the load on the P
ORTA
C
OUNT
Plus, use the AC adapter whenever
possible for your power supply. If you choose to use the optional
battery pack, be aware that the battery life is
significantly reduced
when it must supply power for both instruments.
A maximum fit factor of 200 can be displayed when you use the N95-
Companion and the P
ORTA
C
OUNT
Plus together. If you require a higher fit
factor, you must use the P
ORTA
C
OUNT
Plus without the N95-Companion.
Note: Fit testing of class 95 respirators requires the use of the N95
Companion. Class 99 and class 100 respirators should be fit tested
with the P
ORTA
C
OUNT
alone.
Fit Test Procedure
1. Have the fit-test subject hang the N95-Companion sampling pendant
around his or her neck, adjusting the neck strap on the assembly to a
comfortable position. Make sure the TSI logo label is facing outward.
The sampling pendant should be positioned high enough so that the
tubing does not pull the mask off the person’s face.
2. Attach the sampling tube (clear sample line) from the pendant to the
mask sampling probe. Make sure you do this before the subject dons the
mask.