Operating Manual
Operation instructions
Page7-2
7
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1 summary
When gloves is installed first time or open the box to maintenance, box inside is full of air.
You must clean the box with N2, Argon & Helium to do air replacement.
Cleaning is to replace air of box. The gas for cleaning is same as gas for working.
7
．
2 When to clean
In principle, you need do the cleaning when O2 value is above 100ppm.
The reason of oxygen content too high is as following:
Initial installation and debugging
After maintainance
Mal-operation will cause air come into box
Breakage and leakage will cause air come into box
Notice:
You need clean glovebox with working gas until O
2
<100ppm, it will break purification
system if you start circulation when O2 content is too high.
7
．
3 Gas for cleaning
Clean the system with working gas
Middle class purity N2/Ar/He, bottled gas or pipeline gas etc
Dia. 1
Gas content for cleaning
As the graph showing above, if you want achieve 10 ppm purity, 1 m
3
box need 14.5 m
3
gas to clean.
