Vapor Generation Accessory VGA–77 Operation manual

VGA–775. Maintenance and spareparts5.1 Cleaning procedures5.1.1 GeneralThe VGA-77 uses high concentrations of HCl. Continual exposure toHCl fumes may damage the instrumentation. Maintain an efficientexhaust system during VGA determinations and remove HCl solutionsfrom the VGA-77 and the spectrometer when you finish youranalyses.Always clean up any spilt liquids immediately. The front of thespectrometer, the burner/torch compartment and the VGA-77 shouldbe cleaned daily with a soft cloth. If necessary, use a cloth dampenedwith distilled water.Observe the shut down procedure as described in section 3.4.5.1.2 Absorption cellThis section applies to AA modules only.Always clean the absorption cell thoroughly immediately after use,when contamination is suspected while conditioning the system, orwhenever the system has been left unused for some time. Throughoutthe cleaning procedure remember that the cell is fragile and must behandled with appropriate care.WarningBefore touching the cell remember that it may be very hot andcould cause serious burns.Always turn the flame off and allow the cell to cool beforeattempting to remove it from the sample compartment.Publication date: May 2004 5-1