BUCHI DuMaster D-480 - Manual (Page 21)

Operation Manual D-480 ©BÜCH Labortechnik AG
2 - Basic security settings 21
 Front door
 Left side door
 Rear wall
 Instrument cover.
The casing separates hot, live parts from the surroundings.
Protective earth conductor
The electrical components of the analyzer are grounded by a protective earth conductor:
 The first protective earth conductor is located on the rear wall of the analyzer.
 The second protective earth conductor is located outside the cover of the electrical area (arrow).
 The third protective earth conductor is located intside the cover of the electrical area (arrow).
If the protective earth conductor connections need to be detached, they must be re-connected
correctly when re-assembling.
Waste gas lines
The operator is obliged to connect waste gas lines if the national limits for toxic gases in workplace air
are exceeded. The waste gas lines must discharge into the open or into an exhaust hood. The end of
the waste gas lines must discharge into the open at a location protected from the wind as pressure
fluctuations, e.g. caused by wind, cause detector instabilities.
In addition, the installation room should be well ventilated.