CONSTRUCTION
filter. A prefilter extends the life of the exhaust HEPA filter and protects it from mechanical damage during cleaning of the work zone.
CABINET Constructed in electro-galvanised steel with joints welded using a gas shielded arc process. This method produces a robust, leak free housing that is able to withstand the rigours of transport and handling. The exterior is finished in a high-quality powder coat which has been developed for laboratory equipment. WORK ZONE Constructed in grade 304 stainless steel with 2B finish. Corners are radiused and crevice- free for ease of cleaning and all surfaces are carefully dressed to remove sharp edges. The removable work tray is designed to allow cleaning access to its underside without removing it from the cabinet. A pneumatic mechanism opens and closes the viewing window without the need for external fasteners or catches. The window is self-supporting in the fully open position to facilitate cleaning and access for large items. Opening the window with the cabinet running automatically engages a boost mode for enhanced containment by activating a maximum exhaust airflow and the alarm systems. HEPA FILTERS Clyde Apac MicrosealTM HEPA filters, are manufactured to meet requirements of AS4260. Each filter is individually certified to be leak free in accordance with AS 1807.6. A manufacturer endorsed test label fitted with an extract of the test report is affixed to each
FANS Separate direct drive fans are provided for the exhaust and laminar flow HEPA filters. Fans are fitted with speed controllers to enable airflows to be maintained through filter life. The fan control circuits are interlocked so that the laminar flow system will not operate until the exhaust system has achieved a containment condition. Audible and visible alarms with rechargeable battery back-up signify any reduction in barrier containment or laminar airflow. ELECTRICAL Cabinets operate on single-phase 240V, 50 Hz power via a 10A outlet. The electrical system complies with Australian Standard AS3100. A low voltage touch control panel is located on the front of the cabinet. The Optima 2000TM microprocessor-controlled control and diagnostic system provides continuous monitoring of critical cabinet functions with a digital display indicating the nature of any malfunction.
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