Chorus-trio Service Manual rev.2.0 eng PDF

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Chorus-trio SERVICE MANUAL

CHSMEN200

CHORUS Trio

SERVICE MANUAL Revision 02

Rev. 02 – 22/1/09

1 of 146

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CHSMEN200

TABLE of CONTENTS 1

INTRODUCTION.................................................................................................................................................... 7 1.1 GENERAL INFORMATION ..................................................................................................................................... 7 1.2 RISKS OF MECHANICAL NATURE ............................................................................................................. 7 1.2.1 Transportation .............................................................................................................................................. 7 1.2.2 Installation of the instrument........................................................................................................................ 7 1.2.3 Mechanical movements ................................................................................................................................. 8 1.2.4 Movement of the sample tray ........................................................................................................................ 8 1.2.5 Lids and Protections ..................................................................................................................................... 9 1.3 ELECTRICAL RISKS ...................................................................................................................................... 9 1.4 RISKS IN THE USE OF THE LIQUIDS ........................................................................................................ 10 1.5 RISKS DUE TO HIGH TEMPERATURES.................................................................................................... 10 1.6 BIOLOGICAL CONTAMINATION RISKS.................................................................................................. 10 1.6.1 Handling of the strips and the serum.......................................................................................................... 10 1.6.2 Handling of waste material......................................................................................................................... 11 1.6.3 Dangerous Infected Points.......................................................................................................................... 11 1.7 PERSONAL PROTECTION EQUIPMENT (PPE)......................................................................................... 12 1.8 SAFETY LABELS.......................................................................................................................................... 12

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STRIP HANDLING............................................................................................................................................... 13 2.1 WORKING STATIONS .......................................................................................................................................... 13 2.2 THE TRAY ........................................................................................................................................................ 14 2.3 TRAY ROTATION .............................................................................................................................................. 14 2.3.1 Absolute sensor ........................................................................................................................................... 16 2.3.2 Step check ................................................................................................................................................... 16 2.3.3 syncronization............................................................................................................................................. 17 2.3.4 Tray vibration and calibration.................................................................................................................... 18 2.4 STRIP HOUSING ................................................................................................................................................ 19 2.5 TRAY STOP ....................................................................................................................................................... 21 2.6 CALIBRATIONS AND CHECK PARAMETERS......................................................................................... 22 2.6.1 Tray Alignment and Centering.................................................................................................................... 22

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STRIP RECOGNITION GROUP ........................................................................................................................ 23 3.1 STRIP PRESENCE SENSOR (SPS)........................................................................................................................ 23 3.2 INNER BAR-CODE READER ................................................................................................................................ 23 3.3 SPS AND CALIBRATIONS AND CHECK PARAMETERS ........................................................................................ 24 3.4 OUTER BAR-CODE READER ............................................................................................................................... 25 3.4.1 Connection between the reader and the instrument.................................................................................... 25 3.4.2 Test.............................................................................................................................................................. 25

4

TRANSFER GROUP.............................................................................................................................................26 4.1 HYDRAULIC CIRCUIT OF DISTRIBUTION ............................................................................................................ 26 4.2 THE STRIP, THE NEEDLES AND THE WELL ......................................................................................................... 28 4.3 DISPENSER ....................................................................................................................................................... 29 4.4 X CARRIAGE MOTION ....................................................................................................................................... 31 4.5 SYRINGE GROUP ............................................................................................................................................... 32 4.6 THE TRANSFER FUNCTION ................................................................................................................................ 34 4.6.1 The transfer function parameters................................................................................................................ 34 4.6.2 The dispensers ............................................................................................................................................ 35

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4.6.3 Syringe selection......................................................................................................................................... 35 4.6.4 Filling (priming) of the distributing and washing circuit ........................................................................... 35 4.6.5 The Liquid pick-up ...................................................................................................................................... 36 4.6.6 Needle point drying..................................................................................................................................... 38 4.6.7 Cuvette membrane drilling ......................................................................................................................... 38 4.6.8 Level detection ............................................................................................................................................ 40 4.6.9 Mixing......................................................................................................................................................... 41 4.6.10 Use of a pre-diluited sample................................................................................................................... 42 4.6.11 Simple transfer ....................................................................................................................................... 42 4.7 CALIBRATIONS AND CHECK PARAMETERS......................................................................................... 45 4.7.1 Transfer circuit ........................................................................................................................................... 45 4.7.2 The dispensers HW parameters .................................................................................................................. 47 4.7.3 X Axis motion.............................................................................................................................................. 48 4.7.4 Level sensors............................................................................................................................................... 49 4.8 FUNCTION TESTS .............................................................................................................................................. 50 4.8.1 Transfer test................................................................................................................................................ 50 4.8.2 Strip drilling................................................................................................................................................ 52 5

OPTICAL GROUP................................................................................................................................................ 53 5.1 LIGHT SOURCE ................................................................................................................................................. 53 5.2 THE OPTICAL DEVICE ....................................................................................................................................... 54 5.3 THE OPTICAL CHANNEL .................................................................................................................................... 56 5.4 FILTER POSITIONING ........................................................................................................................................ 57 5.5 OPTICS CALIBRATION ....................................................................................................................................... 58 5.5.1 Transmittance and absorbance................................................................................................................... 58 5.5.2 Opticals fibres alignment............................................................................................................................ 60 5.5.3 Optical channel calibration ........................................................................................................................ 62 5.5.4 electronic offset calibration in the dark...................................................................................................... 62 5.5.5 Calibration of the light emission................................................................................................................. 63 5.5.6 The control ramp ........................................................................................................................................ 64 5.5.7 Report of the virtual ramp........................................................................................................................... 65 5.5.8 Check window............................................................................................................................................. 67 5.6 TEST ROUTINE FOR THE OPTICAL GROUP .......................................................................................................... 68 5.6.1 Optical filter adjustment setting.................................................................................................................. 68 5.6.2 OPTICAL CHANNELS ............................................................................................................................... 69 5.6.3 Check of the values of the lamp control voltage ......................................................................................... 69 5.6.4 Off-set calibration ( Dark)......................................................................................................................... 70 5.6.5 Light calibration (Light) ............................................................................................................................. 71 5.6.6 CALIBRATION CURVE ............................................................................................................................. 71 5.6.7 MENISCUS TEST ....................................................................................................................................... 74

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WASHING GROUP .............................................................................................................................................. 75 6.1 HYDRAULIC CIRCUIT OF WASHING .................................................................................................................. 75 6.2 TANK PROBES .................................................................................................................................................. 76 6.3 WASHING DEVICES #1 AND #2 ......................................................................................................................... 78 6.4 WASHING DEVICE #3........................................................................................................................................ 80 6.5 COLLECTION WELLS ......................................................................................................................................... 81 6.6 WASHING ROUTINE .......................................................................................................................................... 82 6.7 TEST ROUTINE FOR THE WASHING CIRCUIT ....................................................................................................... 83 6.7.1 Buffer solution distribution from washer #1 ............................................................................................... 83 6.7.2 Buffer solution distribution from washer #2 ............................................................................................... 83 6.7.3 Duct washing of washer #1......................................................................................................................... 84

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6.7.4 Duct washing of washer #2......................................................................................................................... 84 6.7.5 Washer #3 suction....................................................................................................................................... 84 6.7.6 Buffer circuit voiding .................................................................................................................................. 85 6.7.7 Buffer circuit washing................................................................................................................................. 85 6.7.8 Buffer circuit filling .................................................................................................................................... 85 6.8 CHECK PARAMETERS ................................................................................................................................ 86 6.8.1 Automatic calibration ................................................................................................................................. 86 6.9 FUNCTION TESTS .............................................................................................................................................. 87 6.9.1 Washer operation check.............................................................................................................................. 87 7

WATER WASTE CIRCUIT................................................................................................................................. 89 7.1 MAIN WASTE WELL .......................................................................................................................................... 90 7.1.1 Normal operation........................................................................................................................................ 91 7.1.2 Drain tank full............................................................................................................................................. 91 7.1.3 Drain pump fault......................................................................................................................................... 92 7.1.4 Output closed.............................................................................................................................................. 92 7.1.5 Waste tank check......................................................................................................................................... 93

8

TEMPERATURE CONTROL ............................................................................................................................. 94 8.1 TEMPERATURE ADJUSTMENT OF THE INSTRUMENT .......................................................................................... 94 8.2 MEASURE CHAMBER ........................................................................................................................................ 95 8.3 HEATER ........................................................................................................................................................... 96 8.3.1 Heater specifications .................................................................................................................................. 96 8.4 CYCLE TEMPERATURE ...................................................................................................................................... 97 8.5 STAND-BY TEMPERATURE ................................................................................................................................ 97 8.6 TEST ROUTINE FOR THE ADJUSTMENT TEMPERATURE SYSTEM ......................................................................... 97 8.6.1 Check: temperature sensor ......................................................................................................................... 97 8.6.2 Temperature adjustment of the chamber .................................................................................................... 97 8.6.3 Stand-by temperature programming........................................................................................................... 98

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SPEAKER, PRINTER, DISPLAY ....................................................................................................................... 99 9.1 DISPLAY........................................................................................................................................................... 99 9.2 THE SPEAKER ................................................................................................................................................. 100 9.3 THE PRINTING UNIT .................................