5 | Installation
BÜCHI Labortechnik AG
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Operation Manual Interface I-300 Pro
u
Connect the communication cable from the foam sensor to the VacuBox. Plug the
connector into the socket marked "FS". For details, see Chapter 3.5.3 "VacuBox
(connections)", page 16.
NOTE
Immersion angle > 30°:
If the immersion angle of the Rotavapor is to be more than 30°, the small washer
supplied must be fitted on the foam sensor in order to prevent the condensate run-
ning back into the evaporating flask. The washer is slid over the glass tube of the
foam sensor so that it comes to rest in the area below the condensate trap of the
cooling condenser. The tip of the washer should point downwards.
NOTE
Installing foam sensor on the R-220 Pro:
The installation of the foam sensor on the Rotavapor R-220 Pro is described in the
operating instructions of the Rotavapor R-220 Pro.
5.5
Connecting valve unit for external vacuum
The Interface I-300 Pro can be used together with the VacuBox to control an external
vacuum. For precise control of the vacuum, the use of a Woulff bottle is also recom-
mended.
The apparatus can be mounted on a laboratory stand, see Chapter 5.1.4 "Mounting
interface unit on laboratory stand (optional accessory)", page 33.
u
Connect the vacuum valve to the VacuBox using a communication cable plugged
into the connection marked VALVE.
u
Connect vacuum tubing between the laboratory apparatus to be evacuated, the
VacuBox and the external vacuum unit.
u
If a Rotavapor is not connected, connect the VacuBox to the mains adaptor using
an adaptor cable and plug the mains adaptor into the external power supply.
NOTE
Changing the hysteresis:
To adjust the regulation accuracy, the hysteresis can be altered on the interface unit,
see Chapter 3.6.4 "Configuration menu", page 21.
NOTE
Connecting VacuBox with R-220 Pro:
If the Interface I-300 Pro and the VacuBox are operated in the Rotavapor R-220 Pro
system, the following points should be noted: The external valves must always be
connected to the Rotavapor R-220 Pro even if there is an alternative connection on
the VacuBox.
5.6
Operating I-300 and I-300 Pro in parallel
NOTE
BUCHI Cloud Services are not supported in parallel mode.
If the Rotavapor is to be controlled from outside a fume hood, there is the option of
connecting two separate interface units in parallel. In that case, distillation can be
controlled from either interface unit. The readings displayed are continuously synchro-
nized. The servicing functions (e.g. leak test) are controlled by the interface unit that
is currently being used.
