Vapor Generation Accessory VGA–77 Operation manual

VGA–77*OTUBMMJOHÁBÁGMPXUISPVHIÁNFSDVSZÁDFMMÁPOÁBÁ.BSLÁÁCVSOFSÁTo install a flow-through mercury cell (for mercury analysis) in aMark 7, use the following procedure:1. Open the spring clips and place the cell into position.2. Close the spring clips.3. Place the cell in its holder on top of the burner.*OTUBMMJOHÁBÁTUBOEBSEÁBCTPSQUJPOÁDFMMÁPOÁPMEFSÁCVSOFSTÁTo install a standard absorption cell on older burners (e.g., Mark VI,Mark VIA, Mark V), use the following procedure:1. Lift the left hand spring clip, and pass the central inlet stemthrough the hole in the mounting bracket while lowering the leftside of the cell into position.2. Close the left hand spring clip.3. Open the right hand spring clip, gently push the cell fully homeand close the right hand spring clip.4. Mount the cell in its holder on the burner. Note that the slots onthe cell holder must engage the mounting pegs on the burnerclamp.*OTUBMMJOHÁBÁGMPXUISPVHIÁNFSDVSZÁDFMMÁPOÁPMEFSÁCVSOFSTÁTo install a flow-through mercury cell (for mercury analysis) on olderburners (e.g., Mark VI, Mark VIA, Mark V), usedo the followingprocedure:1. Open the spring clips and place the cell into position.2. Close the spring clips.3. Mount the cell in its holder on the burner. Note that the slots onthe cell holder must engage the mounting pegs on the burnerclamp.2.2.11 Connecting the gas/liquid separator outletThe VGA-77 is supplied with a length of black fluoro-elastomertubing (AA only). This tubing is used to connect the vapor outlet ofthe gas-liquid separator to the inlet stem of the quartz absorption cell.It is good analytical practice to keep this tubing as short as possible.Your VGA-77 should be located immediately in front of theinstrument sample compartment.2-18 Publication date: May 2004