Containment and Protection

• The airflow ratio of 63% recirculation to 37% exhaust increases operator protection beyond the 70%/30% ratio of conventional biological safety cabinets.
• The inflow and downflow balance is precisely established by an external exhaust damper and is adjustable without decontaminating the biosafety cabinet.
• Inflow of room air enters the front air grille to establish operator protection; room air does not enter the work zone, preventing product contamination.
• The front grille has proportionally larger perforations on the extreme left and right side. Combined with the side air gap between the work tray and the side wall, the stronger side capture zones increase protection in this critical area where contaminants tend to bleed out in conventional cabinets.
• The convex inflow grille maintains operator protection by discouraging users from placing objects on it.
• Auto-purge holes located at the front side walls eliminate eddy currents and dead air pockets in the critical area behind the sash window. Per NSF/ANSI 49 requirement, these side perforations do not extend completely to the work surface to prevent accidental liquid spills in the work zone from entering the side air column.

Integrated Filtration System

• A combination of a supply ULPA filter and an exhaust ULPA filter give the biosafety cabinet a fully integrated performance envelope for product, operator and environmental protection.
• ULPA filters (per IEST-RP-CC001.3), are tested to a typical efficiency of >99.999% for 0.1 to 0.3 micron particles; these provide better filtration capability than conventional HEPA filters that have a typical efficiency of >99.99% for 0.3 micron particles.
• Modern separator-less mini-pleat filter construction maximizes the filer surface area to extend filter life and eliminate possible filter media damage by thin and sharp aluminum separators used in conventional HEPA filter construction.
• The filter frame and media is constructed in accordance with EN 1822 requirements for fire retardant properties.
• The supply ULPA filter provides ISO Class 3 (per ISO 14644.1) clean air to the work surface in a gentle vertical laminar flow for product protection.
• The exhaust ULPA filter traps biohazard particles acquired from the work surface before air is exhausted to the room, offering personnel and environmental protection.
• The exhaust filter media is protected from mechanical damage by an integrated metal screen guard, which is absent from convention HEPA filters.
• The top cabinet surface is slanted to discourage users from placing objects which could block the exhaust filter and reduce inflow velocity.

Front Sash Assembly

• Integrated sash proximity contacts sense proper sash position, serve as an interlock for the UV lamp, and activate an alarm if the sash is improperly positioned.
• The magnetic switch eliminates the chance of wear and tear typical of a mechanical switch.
• The back of the sash can be easily cleaned by removing the sash track cover and swinging up the sash glass.
• The sash is counterbalanced for smooth, lightweight operation.
• The counterbalance locking mechanism is inherently safe; it locks the counter balance in place if either of the 2 cables is detached. the sash cable and cable clip have rated strength of more than 6 times he weight of the sash window of the largest cabinet. (6ft.)
• The safety glass maintains containment if the sash is accidentally broken during cabinet operation.

Blower Efficiency

• The blower system is designed for high performance operation, maximum energy efficiency and minimal maintenance.
• The external rotor motor design allows for optimum cooling of the motor during extended operations and extends the motor bearing life.
• The blower/motor can maintain airflow for a 150% increase in pressure loss over clean filters without manual speed control adjustment, or 210% increase in pressure drop across the filter with manual speed control adjustment., (applies to 4 ft model; contact Geneva Scientific for information on other models.)
• The permanently lubricated direct-drive external rotor motor/blower reduces operation costs.
• Built-in RFI and electrical noise filters eliminate interference with adjacent instrumenting.
• An integral blower hour meter tracks operation life for predictive maintenance planning.
• To prevent fan damage, a paper-catch grille traps papers or towels that may drop down on the drain pan, preventing them from being pulled into the column by fan suction.

Airflow

• "Blue Box" ULPA-Filtered Air
• "Red Box" Unfiltered / Potentially contaminated Air
• "Green Box" Room Air / Inflow Air

• Ambient air is pulled through the perforations located towards the work zone front to prevent contamination of the work surface and work product. The inflow does not mix with the clean air within the cabinet work zone. Inflow air travels through a return path toward the common air plenum (blower plenum) at the top of the cabinet.
• Approximately 35% of the air in the common plenum is exhausted through the ULPA filter to the room. The remaining 65% of the air is passed through the downflow ULPA filter and into the work area as a vertical laminar flow air stream bathing the work surface in clean air.
• The uniform, non-turbulent air stream protects against cross contamination within and throughout the work area.
• Near the work surface, the downflow air stream splits with a portion moving toward the front air grille, and the remainder moving to the rear air grille. A small portion of the ULPA filtered downflow enters the intake perforations at the side capture zones at a higher velocity (small blue arrows).
• A combination of inflow and downflow air streams forms an air barrier that prevents contaminated room air from entering the work zone, and prevents work surface emissions from escaping the work zone.
• Air returns to the common air plenum where the 37% exhaust and 63% recirculation process is continued.

Microprocessor Control, Alarm, Monitoring System

• The Sentinel™ microprocessor-based control system supervises operation of all cabinet functions.
• The control panel is located on the center of the biosafety cabinet, and angled down for easy access by the operator.
• Continuous monitoring of cabinet airflow is displayed on a bright, easy-to-read LCD panel.
• An integrated, temperature compensated, true airflow velocity sensor provides an accurate airflow reading despite room temperature fluctuations.
• All electronic parts are contained inside a plug-and-play module that permits easy exchange if required.
• Microprocessor software updates are available for download via the Internet.
• Sentinel functions are factory set to default to ON or OFF, depending on worldwide destination and local preferences. Default settings can be user activated through the touchpad data entry access.
• Automatic start-up sequence will prepare the biosafety cabinet for normal operation and advise when safe conditions are established.
• An administrator controlled PIN can be set to restrict access to main menu.
• The airflow alarm can be activated or deactivated depending on user preference and nature of the work.
• Consult your operating manual or contact your sales representative for information on user-preference programming capabilities built into the Sentinel microprocessor platform.

Cabinet Construction

• Robust construction and enhanced safety features qualify the biological safety cabinet for the most demanding laboratory applications. The biological safety cabinet is fully assembled and ready to install and operate when shipped.
• The interior work area is formed from a single piece of stainless-steel with large radius corners to simplify cleaning.
• The cabinet work zone has no welded joints to collect contaminates or rust.
• All stainless steel work surfaces are accessible for cleaning.
• Tray components lift and remove to provide easy access and encourage surface decontamination.
• A recessed central area and stainless steel drain pan channels spills and prevent liquids from entering the lower filtration and blower systems.
• the drain pan is flush with the side walls to eliminate concealed or hard to clean spaces.
• There are no screws in on the front or sides to trap contaminants or complicate cleaning.
• Optional service fittings are offset for easier access.
• External plumbing is concealed behind trim panels to maintain aesthetics.
• External surfaces are coated with IsocideTM antimicrobial coating to protect against surface contamination and inhibit bacterial growth. Isocide eliminates 99.9% of surface bacteria within 24 hours of exposure.

Comfortable Ergonomic Design

• The biosafety cabinet. is engineered for comfort, utility value and safety.
• The 10 degree angled viewing window and narrow profile front grille improves reach into the work area.
• The instant-start 500k fluorescent lamp operates on an electronic ballast to reduce heat, improve comfort and conserve energy.
• The lamp delivers uniform lighting to the work surface for greater comfort, reduced glare and improved productivity.
• The front armrest is raised above the workzone to improve comfort and to ensure that the operator's arms do not block the forward airflow perforations.
• The optional adjustable support stand provides work surface height control.
• The frameless sash eliminates operator's line of sight blockage.
• A generous sash opening allows for easier access into the work zone, provides ample room for transferring of small equipment.
• The sliding window can be fully opened to insert and remove larger instrumentation and equipment.

Electrical Safety and Certification

• All components meet or exceed applicable safety requirements.
• Each cabinet is individually tested for electrical safety at factory.
• Documentation specific to each cabinet serial number is maintained on file.
• UL listed for USA and Canada.
• Certified to all major world standards for biological safety cabinets, including the NSF / ANSI 49 and EN 12469 (refer to Standards Compliance table on this page for the full list.)
• Contact Geneva Scientific for site preparation information; see Electrical specifications.
• Available in 220-240, AC 50Hz, 1P; 110-130V, AC, 60Hz 1Ph, 220-240V, AC, 60 Hz, 1Ph

Warranty

• Our biological safety cabinets are warranted for 5 years excluding consumable parts and accessories.
• Each cabinet is shipped with a comprehensive user's manual complete with a report documenting all test procedures.
• Additional IQ/OQ/PQ documenting is available upon request.

Accessories and Options

• Stands
  • Stand; 28"-30" work surface with Leveling Feet
  • Adjustable Stand with Leveling Feet; 26"-37" (28"-39" work surface)
  • Adjustable Stand with Casters; 26.5"-35.5" (28"-39" work surface)
  • Hydraulic, Motorized Adjustable Stand 25"-37" (27"-37" work surface)
  
  
• Electrical Outlets and Utility Fixtures
  • Electrical Outlet, ground fault. (One Included)
  • Petcock (air, gas, vacuum) (One Included)
  
  
• Cabinet Accessories
  • IV Bar, with Hooks
  • Stainless Steel construction
  • Germicidal UV Lamp -
    Controlled by automatic UV lamp timer through microprocessor control panel.
    Emission of 253.7 nanometers for most efficient decontamination.
    Lamp is positioned away from operator line-of-site for safety and proper exposure to interior surfaces. (Note: UV lamp intensity reduces over time and its effectiveness is subject to factors such as relative humidity in the biological safety cabinet, ambient air temperature and microbial species in the work zone.)
  • PV Armrest -
    Chemically treated, improves operator comfort, easy to clean. 28" (712 mm) standard size.
  • Ergonomic Lab Chair -
    Laboratory grade construction, meets Class 100 cleanliness; alcohol resistant PVC materials.
    Adjustable 15.6"-19.3"
  • Ergonomic Foot Rest-
    Angled, helps maintain proper posture
    Adjustable height
    Anti-skid coating, chemical resistant finish
  • Microscope Viewing Device
  • Mounting and viewing pouch integrated into sash
• Exhaust Options
• Damper
• Air Tight Damper for all B2 & A2 cabinets. 9.75" dia. x 9.75" H. (Fits inside 10" Duct)
• Thimble Exhaust
• Transition for Biological Safety Cabinet to 10" Round Duct

Standards Compliance	Biosafety Cabinets	Air Quality	Filtration	Electrical Safety
	NSF / ANSI 49, USA* EN 12469, Europe JIS K 3800, Japan SFDA YY-0569, China	ISO 14644.1, Class 3, Worldwide JIS B9920, Class 3, Japan JIS BS5295, Class 3, Japan US Fed Std 209E, Class 1 USA	EN-1822 (H14), Europe IEST-RP-CC001.3, USA IEST-RP-CC007, USA IEST-RP-CC034.1, USA	UL-C-61010A-1, USA CSA22.2, No.1010-192, Canada EN-61010-1, Europe IEC61010-1, Worldwide

Available Documents

• Download General Purchasing Specifications
• Download Purchasing Specifications for GBS-3F-TIIA2
• Download Purchasing Specifications for GBS-4F-TIIA2
• Download Purchasing Specifications for GBS-5F-TIIA2
• Download Purchasing Specifications for GBS-6F-TIIA2