Metrohm 797 VA Computrace - Manual (Page 5)

Inhaltsverzeichnis
797 VA Computrace / Hardware-Manual 8.797.8001EN
I
Table of contents
1 Introduction ..........................................................1
1.1 Instrument description.................................................................. 1
1.2 Parts and controls......................................................................... 2
1.3 Information about the Instructions for Use................................... 7
1.3.1 Organization............................................................................ 7
1.3.2 Notation and pictograms......................................................... 8
1.4 Support documentation................................................................ 9
1.4.1 Application-Bulletins................................................................ 9
1.4.2 Application Notes .................................................................. 10
1.4.3 Monographs.......................................................................... 11
1.4.4 Reprints ................................................................................. 11
2 Installation..........................................................12
2.1 Setting up the instrument........................................................... 12
2.1.1 Packaging.............................................................................. 12
2.1.2 Check .................................................................................... 12
2.1.3 Location ................................................................................ 12
2.2 Installation of the 797 VA Computrace Stand............................. 12
2.2.1 Mains cable and mains connection ........................................ 12
2.2.2 Switching the instrument on/off ............................................ 13
2.2.3 Connection to the PC............................................................. 13
2.2.4 Equipping the measuring head .............................................. 14
2.2.5 Inert gas connection .............................................................. 17
2.3 Multi-Mode Electrode (MME)...................................................... 20
2.3.1 Construction and operating characteristics of the MME......... 20
2.3.2 Filling the MME with mercury................................................ 22
2.3.3 Mounting the capillary........................................................... 23
2.3.4 Filling capillary without vacuum............................................. 23
2.3.5 Filling the capillary using vacuum .......................................... 25
2.3.6 Storing the MME ................................................................... 29
2.3.7 Replenishing the mercury (without changing capillary) .......... 29
2.3.8 Changing capillary ................................................................. 29
2.3.9 Cleaning the MME ................................................................. 31
2.4 Rotating disk electrode (RDE) ..................................................... 34
2.4.1 Construction and startup of the RDE...................................... 34
2.4.2 Regeneration of RDE ............................................................. 34
2.5 Reference electrode .................................................................... 36
2.5.1 Construction.......................................................................... 36
2.5.2 Startup procedure.................................................................. 37
2.6 Auxiliary electrode ...................................................................... 38
2.6.1 Construction.......................................................................... 38
2.6.2 Startup procedure.................................................................. 38
2.7 Stirrer ......................................................................................... 39
2.8 Connection of Dosing devices..................................................... 40
2.8.1 Electrical Connection ............................................................. 40
2.8.2 Tubing connection................................................................. 40
2.8.3 Change Dosing-/Exchange unit .............................................. 44
2.9 Connection of 863 Compact Autosampler.................................. 46
2.9.1 Electrical connection.............................................................. 47
2.9.2 Tubing connections ............................................................... 48
2.9.3 Software settings................................................................... 51
2.9.4 Operation of the 863 Compact Autosampler ......................... 52
2.10 Connection of 838 Advanced Sample Processor ......................... 53