a D:GROUP company
00020EN Rev.09 – 12/2012 26
9 TECHNICAL SPECIFICATIONS
Housing carbon steel varnished with epoxy powder by electro- spraying.
of AISI 304 glazed stainless steel sheet (on request).
Working surface AISI 304 glazed stainless steel sheet or plastic laminate (on request)
Pre-filter Polyurethane filter washable in water or cleanable with compressed air. 75 % Minimum
efficiency, dust weight arrestance (ASHRAE); dust holding capacity 400 g/m
2
Absolute filter HEPA filter, H14; efficiency 99.995% MPPS (H14 according to EN1822)
Motor-fan of direct coupled centrifugal type. Designed to keep the velocity of air flow (0.45m/s)
constant even in the presence of progressive HEPA filter clogging.
Speed regulation either electronic by manual regulation of the air speed, or automatic if in the version with
automatic regulator and digital anemometer.
OPTIONAL: automatic regulation with digital anemometer to keep the velocity of air-flow
(0.45 m/sec) constant even in the presence of progressive HEPA filter clogging, up to
pressure levels near to 360 Pa
Side panels of safety glass
Lighting fluorescent tubes
Control panel touch sensitive keyboard on the front panel
Power supply 230V - 50 Hz single phase
Electrical system according to EN 61010-1
Testing electronic “light scattering” meter, fan anemometer, noise meter, luxmeter, and smoke
test at the manufacturer’s factory
Electric connection if required by local legislation, install prior to the power inlet an automatic overload switch
equipped with a differential relay with a cut-off threshold no greater than 30 mA.
Earth connection connect the cabinet to the earth via a suitable protection conductor
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