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. |
| |
|
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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