MBRAUN LABmaster pro sp - Preparing the Site

4 Transport, installation and commissioning
Installation
Page
4 - 12
MB-20-G/MB-200G-W_MB-LABmaster_MB-200 MOD_TP700
Operating Manual - V5.0 - 04/2018 - STD
3b Gas purifier 3c Recirculation chiller (optional supplied by
MBRAUN)
3d Vacuum pump Clear room volume: occupied with ambi-
ent air, in case of a failure with inert gas
4.2.2 Preparing the site
Example: Combination with a MBRAUN glovebox
Site selection for an MBRAUN system or any part of a multi-unit system should be carried
out by applying the following guidelines:
¡ All media connections required by the system must be available (refer to Media sup-
ply overview [}4 - 14]).
¡ The site requirements have been met (refer to On-site conditions [}2 - 28]).
¡ There is enough free space available:
¡ The safe room volume in case of a glove tear is determined using the figure be-
low. This figure indicates, as a multiple of the glovebox volume, the minimum
clear room volume (of a closed room) if in case of a glove tear all working gas es-
capes. Hereby the O
2
concentration in the room does not fall below 19%.
The minimum O
2
concentration (refer to Preparing the site [}4 - 13]) is 18%, re-
quiring a minimum clear room volume of 10 times the glovebox volume.
1 O
2
concentration in the room after
loss of glovebox‘s working gas
2 Ratio (room volume / box volume)
The figure above is void for an automatic or a manual glovebox purge.
¡ In case of a manual glovebox purge, with 50l pressurized vessel (200 bar) as the
gas source, the required minimum room size is 200 m
3
if in case of a leakage the
O
2
concentration in the room should not fall below 19%. To keep the minimum O
2
concentration requires a minimum clear volume of 100 m
3
.