12 Maintenance
Preparations for inspection and maintenance work
MB-20-G/MB-200G-W_MB-LABmaster_MB-200 MOD_TP700
Operating Manual - V5.0 - 04/2018 - STD
Page
12 - 9
DANGER
Mol sieve filter loading is potentially carcinogenic
Risk of health
► Only the MBRAUN Service or trained personnel may change the mol sieve filter, cop-
per catalyst or activated carbon filters.
► Wear personal protective equipment (PPE), according to the degree of exposure: for
example, breathing protection (full face protection) with filter, protective gloves and
safety glasses.
► Dispose of all contaminated components of the system properly according to the loc-
ally applicable regulations.
DANGER
High volume of inert gas
Risk of suffocation
► Purge and clean glovebox or enclosure, antechambers and all components thor-
oughly with ambient air to prevent suffocation (the oxygen content in the box must be
>18%).
► Make sure that purge processes are only performed by personal, experienced in
working with high volume of inert gas.
NOTICE
Open a glovebox without shut the system down
Box pressure control is active and can supply working gas into the open glovebox
An active regeneration sequence could bring filter material in contact with ambient air
► Before a glovebox will be opened, always switch the inert gas system at the main
switch off.
12.5 Preparations for inspection and maintenance work
► Observe chapter "Safety".
► Put sensitive or hazardous process material into gas-tight, unbreakable safe contain-
ers, mark and seal them.
► Provide all required spare parts (gloves, particle filters, analysers, etc.).
► Provide personal protective equipment, if required.
► Provide cleaning materials (cleaning agents, cloths, waste containers).
► Provide containers or bags for the proper disposal of components to be replaced.
► Ensure good ventilation of the room.
► Observe section Who may do what? [}12 - 2].
12.5.1 Shut down and de-energization
Deactivate all processes of the system and of possibly integrated additional components.
► Switch off the circulation.
► Switch off the O
2
and H
2
O analysers.