Agilent Technologies TwisTorr304 FS X3500-64000 Bedienungshandbuch Seite 278

17 Technical Information
Inlet screen installation
•
•
prevent the blades of the pump from being damaged by debris. The
inlet screen, however, does reduce the pumping speed as followed:
X3500-68000
X3500-68001
The inlet screen is fitted in the upper part of the pump, as shown in
the figure.
Figure 36
The screen can be mounted on each pump.
The screen can be removed as shown in the following figure.
278/309
969-9302 (CFF 6'')
969-9304 (CFF 8'')
Reduction in pumping speed (%)
Ar
20%
TwisTorr 304 FS User Manual / 87-901-027-01(A)
N He
2
18% 7%
H
2
5%