EN7.pdf - WALDNER Inc.

EN7 Bench-mounted fume cupboards• for high thermal loads incombination with acid digestions• Fume cupboards for handlingof perchloric acid• Fume cupboards for handlingof hydrofluoric acidThese three types of fume cupboards are designedfor safe operation under high thermal load incombination with acidic digestions and for thehandling of perchloric and hydrofluoric acid.The special cladding of the inside of the fumecupboards is resistant to extreme strain. A compactfume scrubber and a neutralisation unit can beoptionally integrated into our fume cupboards atany time.If the maximum admissible temperature isexceeded, the integrated alarm can be relayed tothe building management system.Fume cupboards for high heatand acidic loadsIntended use• Protective device for the user, tested in accordance withEN 14175-7:2012• Suitable for open, thermal processes of breaking downchemicals with aggressive media such as e. g. sulphuric acid,perchloric acid, hydrofluoric acid or aqua regia• The construction of the fume cupboard and the materials ofthe inner lining of the internal workspace determine whichaggressive media the device can be used for• Extraction of fumes and aerosols from the internal workspaceto prevent dangerous amounts of pollutants from escaping intothe laboratory• To prevent the formation of dangerous potentially explosiveatmospheres in the internal workspace• Protection from splashes of hazardous substances in the internalworkspace• Protection from flying particles, bodies or parts escaping fromthe internal workspace• Fume cupboards constructed in accordance withEN 14175-7:2012 are not approved for working with radioactivesubstances and for working with microorganisms• For work with high thermal loads in combination with aciddigestions in the inside of the fume cupboaed (Heat sourcesof 4 KW per meter inner width of the cupboard)Technical dataDimensions 1200 1500 1800Width [mm] 1200 1500 1800Depth [mm] / Height [mm 900 / 2700Clear width, internal workspace [mm] 1150 1450 1750Clear height, internal workspace [mm] / Working height [mm] 1125 / 900Design characteristics 1200 1500 1800Supporting constructionFume-scrubber, Extract manifold, Extract manifold with sprinkler (forworking with perchloric acid), Neutralisation unit underbench unitH-frame with push-in underbench unitsOptional