RBH (Robot Bio Hazard)
Applications
RBH (Robot bio Hazard) are primary conceived to house big size specialized automatic instruments, robotic testing rigs and production systems. Being microbiological safety cabinet in compliance with the EN 12469-2000, they are suitable for product, personnel and environmental protection while handling harmful agents pathogenic to human beings and/or animals as defined in the appropriate international standards and they are adopted in a wide range of disciplines in applications such as: Microbiology, Virology, Haematology, Cell culture, Genetics, Handling of hazardous agents to human beings or animals.
Operational Principles
The ambient air is drawn in from the slots at the stainless-steel base of the front opening and it then passes under the work surface, from where it is drawn up and blown into the plenum of the re-circulating and exhaust fan(s).
The “bio-dynamic sealing system” of the negative pressure plenum ensures that all contaminated particles are kept inside the system and are automatically drawn to the plenum or pressure chamber to be captured by the main re-circulating and exhaust H 14 HEPA/ULPA filters. The fan system assures that no part of the cabinet comes ever under positive contaminated pressure to the laboratory, thus protecting and preserving the environment and operating personnel from exposure to agents of bio-contamination.
70% of the filtered air is re-circulated (after passing through a H14 HEPA/ULPA filter) in an air cleanliness in Class ISO 3, according to ISO 14644-1 laminar flow pattern downwards into the work chamber and the remaining 30% is exhausted to atmosphere through another H14 HEPA/ULPA filter.
Specifications
External structure in epoxy powder coated cold-rolled steel for excellent corrosion resistance to the attack by aggressive common chemicals. Alternatively special models with external structure made in AISI 304L stainless steel for superior cleanability are also available on demand.
Rear wall in epoxy coated painted steel, designed to conform to requirements and pass the “cleanability test” according to EN12469:2000.
Work surface in stainless steel AISI 304L consisting of sections (or in one piece upon request) which are easily removable for carrying out routine cleaning and/or autoclaving sterilization procedures; closed or perforated on request.
Front window made in Lexan material with hinges to keep the panel in opened position during loading and un-loading operations and during maintenance or sanitization operations.
Transparent side windows made in Lexan material which can accommodate customized cable-ports and openings for connection to external devices.
Re-circulating and extractor fans: RBH are fitted with double motor-fan that are designed and are also suitable to discharge the filtered air outside the laboratory through a ducting system if required.
Filtration:H14 HEPA/ULPA filters with an efficiency better than 99,995 % MPPS (EN-1822).
Operation Condition: Air cleanliness in Class ISO 3 as per ISO:EN 14644-1.
The user-friendly practical keyboard and the rear-lit LCD will continuously display all required data keeping the user constantly informed of the cabinet conditions in operation, and in particular:
• display of laminar airflow velocity and frontal air barrier velocity
• display of inside and outside temperature
• display of residual lifetime of HEPA/ULPA filters, UV Lamp and activated carbon filter (if fitted)
• display of total number of hours of operation
• display of saturation level of HEPA/ULPA filters.
Audio-visual alarms provided for:
• out of range or incorrect laminar airflow velocity and frontal air barrier velocity
• uncorrect position of front sash-window
• clogging of HEPA/ULPA filters
• end of life-cycle of UV lamp and saturation of activated carbon filter (if fitted)
• blockage in the exhaust duct ( if fitted )
• fan-motor malfunction
• power failure
Lighting: fluorescent tubes in built-in housing, placed outside the contaminated area
Aluminum front closure panel that ensures the sealing of the cabinet for sterilization/fumigation.
D.O.P.-DEHS inlet port for testing the HEPA/ULPA filters.
UV sterilizing lamp (optional) installed on the aluminum front closure panel complete two switch-off countdown timers, one variable on a 0-3 hours scale (1 minute steps), the other set to 3 fixed hours.
