Chapter 8: troubleshooting – Labconco XPert Filtered Balance Stations 3962622 User Manual

Page 64

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Chapter 8:

Troubleshooting

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.

Blower won’t operate.

Unit not plugged into
outlet.

Plug the enclosure into appropriate electrical
service.

Circuit breaker(s) or
Ground Fault
Interrupter.

Reset circuit breaker.

Blower wiring is
disconnected.

Inspect blower wiring.

Blower switch is
defective.

Replace switch.

Motorized impeller or
blower is defective.

Replace motorized impeller or blower. See
Chapter 6.

Low face velocity or poor
containment of contaminants.

Enclosure sash not
closed.

Close sash to the lowest position.

HEPA filter clogged.

Replace HEPA filter or increase speed.

Carbon filter loaded
with chemicals.

Replace carbon filter.

Blower and lights won’t
operate.

Unit not plugged into
outlet.

Plug enclosure into appropriate electrical
service.

Circuit breaker(s)
tripped.

Reset or replace circuit breaker.

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This manual is related to the following products:

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