9 Antechamber operation (Vacuum antechamber)
Vacuum pump
Page
9 - 2
MB-20-G/MB-200G-W_MB-LABmaster_MB-200 MOD_TP700
Operating Manual - V5.0 - 04/2018 - STD
9.2 Vacuum pump
If an unhealthy or harmful box/enclosure atmosphere exists, polluting or otherwise dan-
gerous materials are transferred inward and outward, MBRAUN recommends connecting
the exhaust of the vacuum pump to an on-site exhaust system.
With ECO Mode feature and a single vacuum pump
If the ECO Mode feature is available and one single vacuum pump is used, in ECO Mode
operation the system control switches off the vacuum pump.
Use a dedicated vacuum pump for antechamber operation or switch off the ECO Mode
operation.
With a dedicated vacuum pump for antechamber operation
When the antechamber cycle is started, the vacuum pump starts automatically if it is not
yet active. However, if the antechamber cycle has finished, the vacuum pump must be
switched off manually on the touch panel.
If there are two antechambers and both share a vacuum pump, only one antechamber at
a time can run an antechamber cycle. If both antechambers are activated those ante-
chamber activated first has priority.
9.3 Antechamber door operation
NOTICE
Risk of damage to the locking mechanism
► Do not use force to open antechamber covers.
► If the door is locked, check the “door locked” status.
► Check for a vacuum in the antechamber.
On standard systems, the inner and outer antechamber doors are operated manually.
¡ Any attempt to open an evacuated antechamber can damage the door-locking mech-
anism.
¡ Opening the door with overpressure inside the antechamber creates a mechanical
hazard since the door could burst after being mechanical released.
► Before opening either the inner or outer antechamber door, verify that the antecham-
ber has approximately atmospheric pressure. This is indicated by the manometer on
the antechamber.
If not:
► Refill the antechamber with gas from the glovebox.
Solvents and/or particles can damage the door seals and the door-lock mechanism
► Make sure that the door and the door seals are free of dirt, dust and particles before
closing the antechamber door.
► Check door seals regularly to make sure they are tight.
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