Hapter, Roubleshooting and, Ervicer – Labconco Class I Enclosure Models 3980423 User Manual

Page 60: Perating

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HAPTER

ROUBLESHOOTING AND

ERVICER

PERATING

Refer to the following table if your filtered enclosure fails to operate properly. If
the suggested corrective actions do not solve your problem, contact Labconco for
additional assistance.

PROBLEM

CAUSE

CORRECTIVE ACTION

Contaminants outside
of enclosure.

Improper user
techniques for the
enclosure.

See “Certifying the Enclosure” Chapter 3
and “Safety Precautions” Chapter 4 sections
in the manual. (Ref. Appendix D).

Restriction of the
baffle air slots or
blockage of the
exhaust outlet.

Remove obstruction to ensure that all air
slots and the exhaust outlet are
unobstructed.

External factors are
disrupting the
enclosure airflow
patterns or acting as a
source of
contamination.

See “Location Requirements” Chapter 2,
“Certifying the Enclosure” Chapter 3, and
“Safety Precautions” Chapter 4 sections of
this manual. (Ref. Appendix D).

Enclosure has
improper face
velocity.

Have enclosure certified and check exhaust
system. Check HEPA filters for loading.
Adjust enclosure speed control. Enclosure
should have an average face velocity of 60-
100 fpm for weighing procedures and 75-
105 fpm for biohazardous procedures.

This manual is related to the following products:

Class I Enclosure Models 3980421 Class I Enclosure Models 3980403 Class I Enclosure Models 3980401 Class I Enclosure Models 3980323 Class I Enclosure Models 3980321 Class I Enclosure Models 3980303 Class I Enclosure Models 3980301 Class I Enclosure Models 3980223 Class I Enclosure Models 3980221 Class I Enclosure Models 3980203 Class I Enclosure Models 3980201 HEPA Filtered Enclosure Models 3980422 HEPA Filtered Enclosure Models 3980420 HEPA Filtered Enclosure Models 3980402 HEPA Filtered Enclosure Models 3980400 HEPA Filtered Enclosure Models 3980322 HEPA Filtered Enclosure Models 3980320 HEPA Filtered Enclosure Models 3980302 HEPA Filtered Enclosure Models 3980300 HEPA Filtered Enclosure Models 3980222 HEPA Filtered Enclosure Models 3980220 HEPA Filtered Enclosure Models 3980202 HEPA Filtered Enclosure Models 3980200