Loading ...
Loading ...
Loading ...
CB / CB-UL, CBF / CBF-UL (E7) 07/2021 Page 162/197
22.3 Replacing the CO
2
und O
2
/N
2
gas inlet fine filters (sterile filters)
When the chamber is in operation, the incoming gas passes through a fine gas filter (aseptic filter, filtration
efficiency 99.99 %, particle size 0.45 µm).This fine filter prevents dirt accumulating in the gas inlet valves
and the tubes leading into the inner chamber, which could be in the gas cylinder or in the supply tubes.
When using gas with a technical grade of 99.5 %, we recommend changing the fine gas filter once a year.
Please consult BINDER Service. When using gases with less pureness, the changing intervals should be
shorter.
• Pull the power plug.
CAUTION
Risk of injuries by sharp edges on the rear panel.
Cuts.
Wear protective gloves when removing or installing the cover on the chamber rear
Remove the cover on the chamber rear
(14) CO
2
sensor
(15) Gas fine filter (sterile
filter) for CO
2
(16) Gas fine filter (sterile
filter) for N
2
(chamber with O
2
control)
Figure 41: Position of the CO
2
sensor and the gas fine filters behind the cover
• Unscrew the desired gas fine filter on both sides from the gas tubes and then screw on a new filter.
• Reinstall the cover on the chamber rear.
(14)
(15)
(16)
Loading ...
Loading ...
Loading ...