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CHAPTER 8
Preventive Maintenance, Service,
and Troubleshooting
Maintenance
Recalibration Interval
TSI recommends that the PortaCount
®
Models 8040 and 8048
Respirator Fit Testers be cleaned and recalibrated annually. Try to
arrange your fit testing schedule to allow for annual factory
recalibration. If you have a fit testing schedule that is seasonal or you
expect heavy usage during an upcoming period (such as an outage),
TSI recommends that you have the PortaCount Fit Tester serviced
prior to that time. TSI's Customer Service Department provides fast
service in order to minimize your down time. Contact TSI on the
Internet at www.tsi.com or send e-mail to PortaCount@tsi.com.
Status Messages
Status messages can be displayed by the PortaCount Model 8040
and 8048 Respirator Fit Testers.
The PortaCount Fit Tester is factory
programmed not to allow fit testing when the
ambient particle concentration is below 350
particles/cm
3
for the Model 8040 or 8048 when
testing respirators with 99% efficiencies or
greater, and 30 particles/cm
3
for the Model 8048
when testing respirators with <99% efficiencies.
If the ambient sample during a Fit Test or during
a Daily Check is below these levels, the “Low
Particle” message appears and the test is
automatically terminated.
Consult the Troubleshooting chapter if
necessary.
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