5.2.3 Sealing ring for valve block
For highly volatile media we recommend to seal the connection from valve block to bottle with the
PTFE sealing ring and PTFE tape (Accessories/spare parts, p. 82).
Assembly
a.
5.2.4 Air vent cap for micro filter with Luer-cone
For sterile media we recommend the air vent cap with Luer-cone to attach a micro filter. This provides
increased protection against contamination by displacement air (Accessories/spare parts, p. 82).
Assembly
a.
c.
997490
a.
Place the PTFE sealing ring on the bottle thread or the
screwed-on adapter and screw the instrument onto the
bottle.
a.
Unscrew the air vent cap (see 'Assembly Drying tube',
Fig. a.).
b.
Screw in the air vent cap with a Luer cone.
c.
Place the PTFE sealing ring on the bottle thread or the
screwed-on adapter and screw the instrument onto the
bottle.
d.
Insert a commercially available sterile filter into the
Luer cone.
5 Operation
65
Operating manual