BUCHI DuMaster D-480 - Manual (Page 5)

Operation Manual D-480 ©BÜCH Labortechnik AG
Contents 5
Contents
CHAPTER 1 General 13
Revision history ........................................................................................................................................... 14
About this document .................................................................................................................................... 15
Display conventions .................................................................................................................................... 16
General information on the operating instructions ....................................................................................... 16
CHAPTER 2 Basic security settings 17
Working with the operating instructions ....................................................................................................... 18
Representation of safety instructions .......................................................................................................... 18
Instructions for disposal of consumables ..................................................................................................... 18
Intended use of the instrument .................................................................................................................... 19
Warning: residual risks ................................................................................................................................ 19
Safety devices in the analyzer ..................................................................................................................... 20
Warning signs on the analyzer .................................................................................................................... 22
Warning: changes to the instrument ............................................................................................................ 23
Warning: unsuitable spare parts and consumables ..................................................................................... 23
Required user knowledge and skills ............................................................................................................ 23
Required personal safety equipment ........................................................................................................... 24
Warning notes during operation .................................................................................................................. 24
CHAPTER 3 Product description 29
Analytical characteristics and technical specifications ................................................................................. 30
Analytical characteristics .................................................................................................................. 31
Technical specifications ................................................................................................................... 31
Instrument design ........................................................................................................................................ 33
Front view ........................................................................................................................................ 34
Furnace section ............................................................................................................................... 35
Rear view ......................................................................................................................................... 36
Right side view ................................................................................................................................. 37
Left side view ................................................................................................................................... 38
Top view ........................................................................................................................................... 39
Peripherals and their function .......................................................................................................... 39
CHAPTER 4 Understanding the instrument and planning its use 41
Layout and mode of functioning .................................................................................................................. 42
Functional units ................................................................................................................................ 43
The thermal conductivity detector (TCD) .......................................................................................... 45
Processes in the instrument during a measurement ................................................................................... 46
Sample insertion and initiation of measurement .............................................................................. 47
Substance digestion and preparation of the reaction gas mixture .................................................... 47
Detection of measuring components and evaluation of the measuring signal .................................. 48
Formula for determining element concentration of analysis samples(Solids) ................................... 48
Basic facts about working with the instrument ............................................................................................. 49
Setting device parameters ............................................................................................................... 50
Instrument equipment ...................................................................................................................... 51
Background knowledge required for calibration ............................................................................... 52
Calibration curve calculation method criteria .................................................................................... 53
Calibration formulae ......................................................................................................................... 55
Routine measuring work .................................................................................................................. 56
Formulae for blank value determination and compensation ............................................................. 57
Formula for determining the daily factor ........................................................................................... 58