Telstar Biological Safety Cabinets (Bio IIA)
Progen Scientific can supply the Telstar brand of biological safety cabinets designed according to EN 12469 and are meetimg or exceeding requirements of NSF 49, BS5726 (Class II), NFX 44-201 and DIN 12950. Each cabinet is factory-certified by TÜV-GS registered laboratory to meet the specified performance requirements.
Telstar biological safety cabinets (Class II cabinets) are available in two styles and four sizes:
- Bio II A : working area 732, 1190, 1495 or 1800 mm. wide
Features, benefits and options of the two styles of Telstar biological safety cabinets are:
Bio II A
Control system:
Main switch with key and microprocessor control system.
Alphanumeric luminescent display providing following data: exhaust air flow
cu.m./hour; laminar flow air velocity m./second; cabinet temperature oC; fans’
elapsed hour meter; U.V. lamp elapsed hour meter; HEPA filters last change
date.
Safety and regulation systems controlled by the microprocessor:
Visual and auditory alarms shown on the display: low exhaust flow; low downflow air velocity; exhaust fan malfunction; front window opened; U.V. lamp is on.
Control system is also providing safety features:
U.V. interlocking when front window is open; air flow and lighting interlocking when U.V. lamp is on; impulsion and exhaust fans providing a double safety system – in case of eventual stop of the exhaust fan, the impulsion one is automatically stopped: in case of eventual stop of the impulsion fan, the exhaust one increases its speed in order to maintain underpressure conditions in the working space; microprocessor compensates for gradual increase in filters resistance; airflow and downflow are maintained in any condition.
Cabinet features:
- Very low noise level < 55 dB (A)
- Supplied with two fans, impulsion (to work space) and exhaust
- Biological safety cabinets are 70% recirculating downflow enclosure Class
II A equipped with two high efficiency HEPA filters:
- HEPA filtered laminar airflow Class 10, which is recirculated in the work space, creates an ultra clean work environment for product protection. A room air barrier at the front opening prevents escape of pathogens into the worker'’ area.
- Exhaust HEPA filter provides safety to environment. NOTE: A second HEPA exhauist filter can be installed if required.
- Stove-enamel coated steel cabinet. Easy access for working and cleaning. Work space is stainless steel AISI 304; segmented work surface (perforated or solid); laminated safety front window with gas springs; two HEPA/ULPA filter stages H14 efficiency 99.999% for particles > 0.3μ easily accessible for replacement.
- Vertical downflow filter, exhaust filter, fans and main circuit board all accessible via front panel providing easy maintenance.
- Lighting system (1100 Lux) outside work space makes service easier.
- Possibility to connect remote fan in ducted cabinets.
- Special model available with lead protection for radioisotope preparation.
Standard cabinet configuration:
Bio II A biological safety cabinets are supplied with a U.V. lamp, two stopcocks (one with safety solenoid valve), electrical socket in work space and electrical cable with plug as standard.
Options available:
Bio II A biological safety cabinets have the following options:
- Base assembly (with or without castors)
- Formalin vaporiser
- Activated charcoal filter (to work in conjunction with formalin vaporiser)
- Anti blow-back valve
- Pedal bunsen burner
- Additional electrical sockets and gas taps
