21 WWW.BERTIN-INSTRUMENTS.COM
With the flow-through adapter (screw cap) the AlphaGUARD DF2000 can be
operated in flow mode (open and in closed cycle).
Converting AlphaGUARD DF2000 again for diffusion mode requires the above
steps in reverse order. It is sufficient to screw the diffusion adapter slightly by hand
as it has no sealing function.
To avoid contamination of the plain paper filter at the chamber entrance, an
external radon progeny filter (accessory) has to be connected to the tube in front
of the air inlet.
Figure 9: Using external radon progeny filter in front of the air inlet (flow mode)
Operate the active adapter only with connecting in series
the external radon progeny filter (enclosed accessory);
otherwise there is acute danger of contamination of the
plain paper filter at the chamber entrance.
To Next Page
Loading...