MBRAUN LABmaster pro sp - Glovebox During Regeneration; Glovebox Purge

8 Glovebox or enclosure operation
Glovebox during regeneration
MB-20-G/MB-200G-W_MB-LABmaster_MB-200 MOD_TP700
Operating Manual - V5.0 - 04/2018 - STD
Page
8 - 13
If a high concentration of solvent vapours can be expected as a result of processes taking
place in the box:
► Expand the system by adding a two-filter solvent filter system. In this case, circula-
tion can be run on one solvent filter while the other solvent filter is in regeneration
mode.
If necessary:
► Use a solvent analyser (MB-UGP or MB-HC-SE1). Contact MBRAUN Service for
more information.
8.9 Glovebox during regeneration
If a reactor is in regeneration mode, it is not available to circulate the glovebox atmo-
sphere.
In a sp system, circulation is off and a restart is disabled during regeneration. This means
that no gas purification takes place during regeneration.
For sp systems MBRAUN recommends, starting regeneration at the end of a workday
and letting it run overnight. The reactor capacity for circulation will then be available again
the next day.
For dp systems: circulation can be continued without interrupting using the reactor that is
not in regeneration mode.
8.10 Glovebox purge
If the quality of the box/enclosure atmosphere decreases, due to solvent vapours or the
effects of the processes being run, the atmosphere inside the glovebox/enclosure must
be purged with fresh atmosphere. The purge function is available to handle this task.
One of the following purge options is implemented in your system:
¡ MB-BS-200: manual starting and stopping of the glovebox purge function by the oper-
ator (200l/min).
¡ MB-BS-Auto LM/MOD: manual starting and stopping purge function (200l/min), ad-
ded with an automatic start and stop purge function (MBRAUN sales number
1500312). The automatic start and stop purge function includes three features:
¡ Manual start and stop of glovebox purge.
¡ Starting of the purge function dependent on gas concentration values measured
by O
2
, H
2
O or solvent analyser.
¡ Day of week purge with calender function.
The function should be used primarily to balance out very large temporary contaminations
of the box/enclosure atmosphere. It can also be used for (re)commissioning.