Labconco Total Exhaust Biological Safety Cabinets 34368 Series - Manual (Page 32)

Chapter 4: Performance Features and Safety Precautions
Product Service 1-800-522-7658 26
Original instructions
Temp-Zone™ Package Option
Models with the Temp-Zone package option include a temperature controlled
area 10.5" (267 mm) wide x 12" (305 mm) deep (7" (178 mm) wide x 12"
(305 mm) deep on 3' models). Samples heated in an incubator or chilled in a
refrigerator may be transferred to the Temp-Zone and kept at optimum
temperature. Quick connection fittings on the left side of the cabinet attach
to a user-supplied circulator that continually delivers heated or chilled water
through channels located underneath the Temp-Zone area of the work surace.
Uniform temperature distribution is maintained on the Temp-Zone area of the
work surface. Temp-Zone work area temperatures of 0.3-0.5°C are
maintained with the circulator heated to 37°C and within 0.3-1.6°C with the
circulator chilled to 3.7°C. Actual set points will vary depending on
variables such as sample tube rack, sample size, and length of tubing.
Safety Precautions
Note: The biosafety cabinet should be certified by a certification technician
before its initial use. The cabinet should be recertified whenever it is
relocated, serviced or at least annually thereafter. Filter integrity and airflow
performance should be verified before using the cabinet.
Some internal components of the biosafety cabinet may become
contaminated during operation of the unit. Only experienced personnel
competent in decontamination procedures should decontaminate the cabinet
before servicing these components. If you have any questions regarding
certification agencies, or need assistance in locating one, contact Labconco’s
Product Service Department at 800-821-5525 or 816-333-8811.
DO NOT load more than 50 lbs. (23 Kg) in the work area. Exceeding this
limit may damage the work surface and its supports. Excessive weight in the
cabinet may increase the risk of it overturning, or failure of hydraulic lift
stands, resulting in the cabinet and stand overturning. If your application
requires loading more than 50 lbs., contact Labconco’s Product Service
Department at 800-821-5525 or 816-333-8811 for assistance.
Ensure that the cabinet is connected to electrical service in accordance with
local and national electrical codes. Failure to do so may create a fire or
electrical hazard. Do not remove or service any electrical components
without first disconnecting the biosafety cabinet from electrical service.
Avoid the use of flammable gases or solvents in the biosafety cabinet. Care
must be taken to ensure against the concentration of flammable or explosive
gases or vapors. An open flame should NOT be used in the biosafety cabinet.
Open flames will disrupt airflow patterns, burn the HEPA filter and/or
damage the filter’s adhesive. Gases under high pressure should not be used in
the biosafety cabinet, as they may disrupt its airflow patterns.