Buchi Nano B-90, Operation Manual

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5 Putting into operation
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B-90 Operation Manual, Version B
• Disconnect the power cord from the mains.
• Gently pull off the back panel of the housing and put
it aside. The outlet filter is now directly accessible.
• Loosen the hose clamps to remove the filter element.
• Put in the new filter and fasten the hose clamps
again.
• Connect the power cord to the mains. The device
can now be switched on.
NOTE
The filter has a designated gas flow direction. To ensure maximum throughput and filter lifetime it
should be installed correctly. The designated flow direction is indicated by an arrow on the filter
housing. For correct alignment, the arrow has to point towards the gas outlet connector of the Nano
Spray Dryer B-90 when installing the filter. After exchange, dispose used filter according to local
regulations immediately.
5.7 Aspirator installation modes
To establish the required instrument input pressure for the drying medium flow, the output of the
Aspirator can be used in blowing mode. The Aspirator can be part of an ‘open loop’ configuration. In
‘closed loop’ the use of an Aspirator is required.
5.7.1 Aspirator in ‘open loop’ configuration
a
b
c
d
a
Air inlet with filter
b
Air outlet towards gas inlet connector of the Nano
Spray Dryer B-90 in Polypress design
c
Output flow-through selector (frequency based
regulation)
d
Mains socket, switch and fuse box
The Aspirator has a bench top dimension of
47,5×30×32 cm and can be placed beside the Nano
Spray Dryer B-90 or on the tray of the trolley.
Installation steps
1. Disconnect the power cord from the mains and depressurize all system parts.
2. Connect the air inlet filter (011235) to the aspirators air inlet a
3. Connect the air outlet b to the Nano Spray Dryer B-90 gas inlet.
4. Connect the power cord to the mains. The device can now be switched on.
NOTE
The Aspirator can not be used in combination with the flow regulation valve. Remove the flow regula-
tion valve if mounted.