EuroFlow EF and EF/B
Biological Safety Cabinet
UM-EFAB-EN10.doc
15
4.4
Hinge-slide window
The hinge-slide window (
Figure 3, Figure 4, Figure 5
and
Figure 6,
Pos. 4) is a tightly closing,
manually operated glass window. It can be slid up or down, and opened and closed by means of
handgrips. The window construction contains two guiding profiles with a compression spring. The
spring will push a ball into a hole in the guiding shaft when the window enters the working
position (this working position is also indicated by means of two blue indication stickers).
The window can be hinged, but only in the hinge position, the top hood has to be opened first.
See
§5.2 Top hood/sliding window on page 23
. The hinge option offers the advantage that even
larger objects can be placed inside the working space. It also makes cleaning the working space as
well as the inside of the window easier(see
7.1 Cleaning the installation
on page 51
).
4.5
Top hood
In and behind the top hood (
Figure 3, Figure 4, Figure 5
and
Figure 6,
Pos. 5) a number of
electrical components are assembled.
•
FL lighting
•
Operating panel / operating board
•
Interface board, including engine control
•
Additional option print.
If you wish to check one of these components, you need to hinge the top hood.
To check the interface board, the safety-cover has to be taken away (authorized service personnel
only). Caution! Some of the components are live and therefore carry a risk of electrical shock as
long as the mains plug is connected.
4.6
Worktop
The workroom contains a stainless steel (type 304) worktop (
Figure 3, Figure 4, Figure 5
and
Figure 6,
Pos. 6) with a deepened work surface. This deepened work surface is called the safe
working area (for information about the dimensions see
§9.2 General specifications on page 61)
.
At the front and the back there are air slits, which are essential to the functioning of the
installation. At the two sides two panels have been placed (See detail Pos. 6)
4.7
Aerofoil
The aerofoil (
Figure 3, Figure 4, Figure 5
and
Figure 6,
Pos. 7) is used for a better air conduction
and to support the elbow. During work with the cabinet the aerofoil needs to be installed. The
aerofoil is made of coated aluminium for better ergonomics. (less weight and less heat
transportation)
4.8
Plenum-construction
The plenum-construction (
Figure 3, Figure 4, Figure 5
and
Figure 6,
Pos. 8) divides the air, which
is let in by the fan, between the downflow HEPA filter and the exhaust HEPA filter.
