TSI Incorporated PORTACOUNT PRO+ 8038, Руководство по эксплуатации и обслуживанию

Страница: 72 / 107

66 Chapter 6
as long as possible, replace the wick each day with a dry one. To dry
out the wick you removed from the PortaCount fit tester, place it in a
well-ventilated area that has a humidity level of 50% or lower and let it
set overnight (approximately 16 hours). The wick should then be dry
and ready to be used again. The 16-hour dry time is based on an 8-
hour operation in a humid environment. The total dry time will vary
depending on the number of operation hours on the wick in high
humidity environment.
Nozzle Cleaning
If the small (pin-hole size) internal nozzle becomes clogged with lint
or other debris, the following procedure should clear it. The symptom
of a clogged nozzle is a low (perhaps zero) ambient particle count.
This usually, but not always, causes the Particle Check and/or Max
Fit Factor Check to fail. There are two procedures. Perform
Procedure A first, then Procedure B if necessary.
Procedure A
Obtain a source of clean compressed gas,
such as Chemtronics
®
or equivalent. It must
have a long nozzle (straw) in order to reach
deep into the PortaCount Pro
Respirator Fit
Tester.

Turn the PortaCount Pro fit tester off and
remove the alcohol cartridge.

Insert the long nozzle inside the
PortaCount Pro
fit tester as shown. Keep
the end of the nozzle centered in the cavity and gently push it in
as far as possible. The internal nozzle is located just at the far
end of the cavity and cannot be seen.

Apply two or three bursts of gas. This will not damage the
PortaCount Pro
Respirator Fit Tester.