biosystems A15 - Page 6

Service manual
4.2.4. Adjustment of the positioning of the rotor ....................................................................................... 65
4.2.4.1. Centering of the rotor with regard to the dispensing point ......................................................... 65
4.2.4.2. Centering of the rotor with regard to the optical system ............................................................. 65
4.2.5 . Adjustment of the positioning of the lter wheel ............................................................................ 66
4.2.6. Adjustment of the level control scales .............................................................................................. 67
4.2.7. Adjustment of the level detection sensitivity ................................................................................... 68
4.3. TESTS ..............................................................................................................................68
4.3.1. Motor tests ........................................................................................................................................... 68
4.3.1.1. Initialization test ............................................................................................................................... 69
4.3.1.2. Movement test .................................................................................................................................. 69
4.3.1.3. Loss step test ................................................................................................................................... 70
4.3.1.4. Stress mode test .............................................................................................................................. 70
4.3.1.5. Z axis secu ri ty systems test............................................................................................................ 70
4.3.1.6 Maximum Z verication test ............................................................................................................. 71
4.3.2. Diaphragm pumps and electrovalves test ........................................................................................ 71
4.3.2.1. Functioning test ............................................................................................................................... 72
4.3.2.2. Stress mode test .............................................................................................................................. 72
4.3.3. Needle self-centering system test ..................................................................................................... 72
4.3.4. Needle level detection system test .................................................................................................... 72
4.3.5. Needle thermostatation system test.................................................................................................. 73
4.3.6. Needle rotor thermostatation system test ........................................................................................ 74
4.3.7. Photometry tests ................................................................................................................................. 74
4.3.7.1. Base line and integration times ...................................................................................................... 74
4.3.7.2. Darkness counts .............................................................................................................................. 76
4.3.7.3. Repeatability without moving the lter wheel ............................................................................... 76
4.3.7.4. Stability ............................................................................................................................................. 77
4.3.7.5. Repeatability moving lter wheel ................................................................................................... 77
4.3.7.6. Absorbance measurement .............................................................................................................. 78
4.3.7.7. Reactions rotor check...................................................................................................................... 78
4.3.8. Level control scales test..................................................................................................................... 79
4.3.9. Covers detection test .......................................................................................................................... 79
4.3.10. PC-Analyzer communications channel test.................................................................................... 80
4.3.11. Global stress mode of the analyzer ................................................................................................. 80
4.3.12. Photometry tool ................................................................................................................................. 81
4.4. UTILITIES .......................................................................................................................82
4.4.1. Disassembly of the dispensing needle ............................................................................................. 82
4.4.2. Fluid system supply ............................................................................................................................ 83
4.4.3. Cleaning of the dispensing system ................................................................................................... 84
4.4.4. Changing the lamp .............................................................................................................................. 84
4.4.5. Conguration of the lter wheel ........................................................................................................ 85
4.4.6. Demonstration mode .......................................................................................................................... 85
4.4.7 Read/load adjustments and cycles..................................................................................................... 86
4.4.8 Change the rotor type .......................................................................................................................... 87
4.5. REGISTER .......................................................................................................................88
4.5.1. Introducing the analyzer serial number ............................................................................................ 88
4.5.2. Service Reports ................................................................................................................................... 89
4.5.3. Language change ................................................................................................................................ 89
4.5.4. Users .................................................................................................................................................... 90
4.6. MONITOR .......................................................................................................................90
4.7 User’s program ...............................................................................................................91
4.7.1 Conguration of the level of access to the analyser ....................................................................... 91
4.7.2 Reagent Consumption ........................................................................................................................ 92
5. MAINTENANCE AND CLEANING .................................................. 94
5.1. MAINTENANCE OPERATIONS ......................................................................................94
5.1.1. Housings and covers .......................................................................................................................... 94
5.1.1.1. Removing the needle unit casing .............................................................................................. 94
5.1.1.2. Removing the front housing ...................................................................................................... 94
5.1.1.3. Removing the main cover .......................................................................................................... 95