User manual

2 PBS-A03/A04-BA-e-1213
GB
KERN PBS-A03/A04
Version 1.3 01/2012
Operating instructions
Set for density determination for precision balances
KERN PBJ/PBS
Contents:
1 INTRODUCTION ............................................................................................................................ 3
1.1 SCOPE OF SUPPLY .................................................................................................................... 3
1.2 DIMENSIONS ............................................................................................................................. 5
2 INSTALLING THE DENSITY DETERMINATION SET .................................................................. 6
3 PRINCIPLE OF DENSITY DETERMINATION ............................................................................... 8
3.1 INFLUENCING MAGNITUDES AND ERROR SOURCES ...................................................................... 9
4 DENSITY DETERMINATION OF SOLIDS ................................................................................... 10
4.1 ACTIVATE FUNCTION ............................................................................................................... 10
4.2 INPUT „DENSITY MEASURING LIQUID“ ....................................................................................... 11
4.3 MEASUREMENT „DENSITY SOLID MATERIAL“ ............................................................................. 12
5 DETERMINING DENSITY OF LIQUIDS ...................................................................................... 13
5.1 VOLUME DETERMINATION OF THE SINKER ................................................................................. 13
5.2 DENSITY DETERMINATION AT KNOWN VOLUME OF THE SINKER ................................................... 14
6 PRECONDITIONS FOR PRECISE MEASUREMENTS ............................................................... 16
6.1 CALCULATION OF RESULTS ..................................................................................................... 16
6.2 INFLUENCE FACTORS FOR MEASUREMENT ERRORS ................................................................. 17
6.2.1 Air bubbles ....................................................................................................................... 17
6.2.2 Solid body sample ........................................................................................................... 17
6.2.3 Liquids .............................................................................................................................. 17
6.2.4 Surface ............................................................................................................................. 17
6.2.5 Sinker for liquid density measurement ............................................................................ 17
6.3 GENERAL INFORMATION .......................................................................................................... 18
6.3.1 Density / Relative Density ................................................................................................ 18
6.3.2 Drift of Balance Display ................................................................................................... 18
7 DENSITY TABLE FOR FLUIDS ................................................................................................... 19
8 UNCERTAINTY OF MEASUREMENT FOR DENSITY DETERMINATION OF SOLIDS ............ 20
9 USER INSTRUCTIONS ................................................................................................................ 21