Labconco XPert Nano Enclosures 38876 Series - Manual (Page 53)

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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 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.
ULPA filter clogged. Replace ULPA 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.