
520 Table of contents – Inhaltsverzeichnis
Precisa Gravimetrics AG 2
Table of contents – Inhaltsverzeichnis
1
Components – Bestandteile ..................................................................................................... 4
1.1
About spare parts – Über Ersatzteile ............................................................................ 4
1.2
Balance groups – aagengruppen ............................................................................... 4
1.3
Housing's top – Gehäuseoberteil .................................................................................. 5
1.4
eighing cell – ägezelle ........................................................................................... 8
1.4.1
Overall view – Übersicht ............................................................................................. 8
1.4.2
Layer sets – Lagersätze .............................................................................................. 9
1.5
eighing pans – aagschalen .................................................................................. 10
1.6
Draft shields – indschütze ...................................................................................... 12
1.6.1
Draft shield PB – indschutz PB ................................................................................ 12
1.6.2
Draft shield PB short – indschutz PB kurz ................................................................. 13
1.6.3
Draft shield M – indschutz M .................................................................................. 14
1.7
Reference weight device – Referenzgewichtsmodul ...................................................... 15
1.8
Electronic Parts – Elektronische Teile ......................................................................... 16
1.9
Power adapter – Netzadapter .................................................................................... 18
2
epairs .................................................................................................................................... 19
2.1
Before getting started .............................................................................................. 19
2.1.1
About overhauling a weighing cell .............................................................................. 19
2.1.2
Über diese AnleitungAbout these instructions .............................................................. 19
2.1.3
Required tools ......................................................................................................... 20
2.1.4
Prepairing the tools .................................................................................................. 21
2.1.5
Spare parts ............................................................................................................. 21
2.2
Opening the balance ................................................................................................ 21
2.3
Removing the weighing cell ....................................................................................... 22
2.4
Removing the layers ................................................................................................ 23
2.5
Cleaning the magnet pot .......................................................................................... 24
2.6
Installing new layers ................................................................................................ 24
2.7
Aligning the weighing cell ......................................................................................... 27
2.8
Installing the weighing cell ........................................................................................ 31
2.9
Adjusting the corner load .......................................................................................... 32
2.9.1
Determining the corner load values ............................................................................ 32
2.9.2
Adjusting the corner load .......................................................................................... 33
2.10
Closing the balance .................................................................................................. 34
3
Adjustments ............................................................................................................................ 35
3.1
Before getting started .............................................................................................. 35
3.1.1
Table of specifications .............................................................................................. 35
3.1.2
Operating conditions ................................................................................................ 35
3.1.3
Placing loads ........................................................................................................... 35
3.1.4
Operating notes ....................................................................................................... 35
3.2
Setting the balance to the service mode (the balance is closed) .................................... 36
3.2.1
Setting the balance to the service mode (PT) .............................................................. 36
3.2.2
Setting the balance to the service mode (PB) .............................................................. 36
3.3
Adjusting the linearity .............................................................................................. 37
3.3.1
Adjusting the linearity (PT) ....................................................................................... 37
3.3.2
Adjusting the linearity (PB) ....................................................................................... 37
3.4
S-Correction ........................................................................................................... 38
3.4.1
Correcting the S-curve (PT) ...................................................................................... 38
3.4.2
Correcting the S-curve (PB) ...................................................................................... 39
3.4.3
Notes on the S-correction ......................................................................................... 39
3.5
Adjusting the internal reference weight (CR ) (SCS models only) ................................. 40
3.5.1
Adjusting the internal reference weight using a nominal weight ..................................... 40