Thermo Fisher Scientific Alpha pH 2000D - Manual (Page 5)

10 GENERAL INFORMATION.................................................................................................................................................34
10.1 W ARRANTY .................................................................................................................................................................34
10.2 P ACKAGING / S COPE OF DELIVERY ...............................................................................................................................34
10.3 R ETURN OF GOODS .....................................................................................................................................................34
10.4 G UIDELINES FOR RETURNING UNIT FOR REPAIR ............................................................................................................34
10.5 M AINTENANCE AND C LEANING .....................................................................................................................................34
11 APPENDICES .....................................................................................................................................................................35
11.1 A PPENDIX 1 – U NIT FUSE AND JUMPER SETTINGS .........................................................................................................35
11.2 A PPENDIX 2 – P H BUFFER VALUES AT VARIOUS TEMPERATURES ...................................................................................36
11.3 A PPENDIX 3 – S IMPLE EXPLANATION ON THE FUNCTION OF HYSTERESIS ........................................................................37
11.4 A PPENDIX 4 – G ENERAL INSTRUCTIONS CONCERNING C ONTROLLER S ETTING ...............................................................38
11.4.1 Control characteristic of Controllers used as limit value switch .....................................................................38
11.4.2 Control characteristic of P-Controllers as proportional controller...................................................................38
11.4.3 Control characteristic of PI-Controllers as proportional integral controller.....................................................38
11.4.4 Control signal of Pulse length Controllers ......................................................................................................39
11.4.5 Control signal of Pulse Frequency Controllers...............................................................................................40
11.5 A PPENDIX 5 – A BBREVIATIONS USED IN MENU DISPLAYS ...............................................................................................41