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FOREWORD
The TWO 30 laboratory cabinet ensures high containment reliability, providing a working area highly protected from both micro-organisms and air-born contaminants.
Compact, economic and easy-to-place new concept of laminar flow cabinet, gives two working possibilities:
1 Overpressure system
Part of the sterile air is exhausted through the front opening.
2 Depression system
Part of the filtered air is exhausted, while air from outside is partially brought in through the front opening thus obtaining a protective barrier.
To exchange the two operational systems, it is sufficient to change the position of the closing plate with the pre-filter and viceversa.
OPERATING PRINCIPLES
1 configuration: OVERPRESSURE
The air stream flowing down from the HEPA filter passes through the perforated worksurface. An air intake from the side slot creates a slight positive pressure in the cabinet, which causes some of the air to exhaust from the front aperture.
2 configuration: DEPRESSION
The air flowing down from the HEPA filter passes through the perforated worksurface. Air exhausted through a pre-filter placed on the upper surface of the cabinet provides a slight negative pressure in the cabinet, which causes a protective air barrier to develop at the working aperture, without affecting flow laminarity.
APPLICATIONS
TWO 30 has been specifically designed to meet specific requirements of electronics, pharmaceuticals, optical and biotechnology laboratories, primarily when handling cell cultures and no-hazardous biological agents, when it is necessary to ensure material protection.
Can be used in a wide range of disciplines, including:
- Microbiology
- Sterility tests
- Cell culture
- Sterile manipulations
- DNA work/thermal cycling/PCR
SPECIFICATIONS
Construction : corrosion-resistant epoxy powder painted carbon steel.
Transparent side walls: safety glass.
Work surface: Punched AISI-304 stainless steel, to ensure flow laminarity and air recycling at the work surface level. An air slot at the front aperture provides a protective barrier for product.
Absolute filter: HEPA filter tested with D. O. P. aerosol. Their efficiency, higher than 99.999% at 0.3 micron particle size -0.001%penetration -guarantees performance exceeding requirements of U. S. Federal Standard 209 e, BS 5295, VDI-2083 and AS 1386-1976.
Prefilter: synthetic fibers pre-filters (washable in water or with compressed air), average arrestance 80/90% ASHRAE (CEN-G3): dust holding capacity 400 g/m2.
Motor blower: direct coupled motor, electronic speed controlled to maintain a constant air flow of 0.45 m/sec, and compensate for a partially clogged filter, up to a maximum pressure of 35 mm of water.
Power Supply: 220 V, 50 Hz, single phase.
Lighting: remote mounted fluorescent light, outside sterile area.
Front window: safety glass with camlock. |
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Code |
Model |
Useful
Dimension mm |
Overall
Dimension mm |
Power |
Weight |
| |
|
W |
H |
D |
W |
H |
D |
Kw |
Kg |
| F72700320 |
TWO 30 |
790 |
585 |
400 |
845 |
785 |
660 |
0.2 |
75 |
|
Recycled Air
m3/H |
Exhausted Air
m3/H |
Temperature rise |
Volts
Hz |
Noise
dBA |
Lighting
Lux |
Vibrations
mm RMS |
|
230 |
100 |
< 4°C |
220/50 |
<60 |
>500 |
<0.008 |
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