2 Inert gas technology
MBRAUN standard platforms
Page
2 - 28
MB-20-G/MB-200G-W_MB-LABmaster_MB-200 MOD_TP700
Operating Manual - V5.0 - 04/2018 - STD
Vacuum pump (oil sealed)
Throughput
7
[m3/h] 17
Vacuum pump (Dry pump)
Throughput
7
[m3/h] 11
2.4.5 Noise level
The noise level of a standard workstation or a glovebox with a gas purifier is < 70dB (A)
9
.
In a laboratory or production environment, additional noise emitted by other systems
could come to >80dB
9
. This could make ear protection necessary.
2.4.6 On-site conditions
Room ¡ Atmosphere with temperature between +15 °C and +35 °C
¡ Relative humidity (rH) max. 65% (dry atmosphere)
¡ Site altitude max. 1000 m
¡ Well ventilated (10 atmosphere exchanges / hour)
Surface
conditions
¡ Firmly structured floor
¡ Level ground
¡ Load capacity approx. 550 kg/m²
Clearance Minimum distance of 600mm from surrounding walls to allow sufficient
working area where gloveports, antechambers, etc. require access
Room size
(volume)
¡ If working gas suddenly escapes from the glovebox interior (e.g. due
to a glove tear), the closed room volume must be at least 10times
the box volume (the oxygen concentration in the ambient air should
fall to no less than 18%, which is the minimum concentration that
will still allow safe escape from the room
¡ In case of a box purge from a compressed gas bottle (contains 50l
gas at 200bar ≅ 10m
3
gas at 1bar), the room volume must be
more than 100m
3
to avoid any risk of suffocation in the event of
malfunctions or failures.
9
“A” rated sound pressure level