jenway 6500 Service Manual
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jenway 6500 Service Manual

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Spectrophotometer Service Manual
Section 1
Section 2
Section 3
Section 4
Section 5
Section 6
Section 7
Section 8
Section 9
Section 10
Section 11
Jenway 6500-05 Ser Man
Jenway 6500/05
Introduction
Quick Reference
System Description
Optical Description
Electronic Description
Software Description
Diagnostics
Maintenance
Circuit Diagrams
Assembly Diagrams
Spare Parts List
Page 1 of 105

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  • Page 1 System Description Section 4 Optical Description Section 5 Electronic Description Section 6 Software Description Section 7 Diagnostics Section 8 Maintenance Section 9 Circuit Diagrams Section 10 Assembly Diagrams Section 11 Spare Parts List Jenway 6500-05 Ser Man Page 1 of 105...
  • Page 2 Introduction 1.0 Index to Sections 1.1 About This Manual 1.2 Using This Manual 1.3 Warnings & Safe Practice 1.4 Standards & Certification 1.5 Ordering Spares 1.6 Returning Items 1.7 Contacting Jenway Limited Jenway 6500-05 Ser Man Page 2 of 105...
  • Page 3 Specification Main Sub-Assemblies Power Supply Voltages Signal Levels Error Codes Special Key Functions Test Solutions Section 3 - System Description 6500 & 6505 Comparison Executable Programmes Sub-Assemblies Accessories Outputs Section 4 - Optical Description Light sources Stray Light Filters Grating...
  • Page 4 Beam Splitter Functions Zero Order Cal. 7.10 Calibrate Functions Section 8 – Maintenance Routine Maintenance Dismantling Energy Levels Wavelength Calibration Beam Splitter Calibration A to D Calibration D to A Calibration Performance Verification Jenway 6500-05 Ser Man Page 4 of 105...
  • Page 5 Section 10 - Assembly Diagrams 10.1 6500 Final Assembly 650 003 10.2 6505 Final Assembly 650 503 10.3 6500 Lower Case Assembly 650 005 10.4 6505 Lower Case Assembly 650 504 10.5 6500/05 Top Case Assembly 650 004 10.6 6500 Optics Assembly 650 016 10.7...
  • Page 6 Jenway Ltd approved Service Training course on the 6500 and 6505 Spectrophotometers. Updates to this manual will be circulated through the Jenway Ltd TSI (Technical Service Information) systems and to other registered users of this manual. Please complete the form at the rear of this manual to register your copy for future updates.
  • Page 7 Jenway 6500-05 Ser Man Page 7 of 105...
  • Page 8 1.5 Ordering Spares When ordering spare parts as detailed in this manual please quote the Part Number and Description. These items should be ordered from the original supplier of the equipment or your local Jenway Limited Distributor. 1.6 Returning Items...
  • Page 9 Section 2 Quick Reference 2.0 About ‘Quick Reference’ 2.1 Specification 2.2 Main Sub-Assemblies 2.3 Power Supply Voltages 2.4 Signal Levels 2.5 Error Codes 2.6 Special Key Functions 2.7 Test Solutions Jenway 6500-05 Ser Man Page 9 of 105...
  • Page 10 Use Quick Reference as a memory jogger, but for more information check out the references to the main sections on each point. 2.1 Specification Wavelength Range 6500 320nm to 1100nm 6505 190nm to 1100nm Wavelength Resolution 0.1nm Wavelength Accuracy Spectral Bandwidth 1.8nm...
  • Page 11 650 507 Monochromator assembly 650 010 Beam Splitter PCB 032 005 12V Solenoid Other Items – including… 060 358 Mouse 016 058 1.6A Fuse for 220V supply 3.15A Fuse for 110V supply Jenway 6500-05 Ser Man Page 11 of 105...
  • Page 12 Deuterium Lamp Supply PCB. 30V dc unregulated, measure from the top of R120 (junction with R100) with respect to the top of R102 in the centre of the Deuterium Lamp Supply PCB. 14V dc Jenway 6500-05 Ser Man Page 12 of 105...
  • Page 13 UV stray light filter open; Linearised voltage must be greater than 20mV. Visible Energy, Set wavelength to 700nm, Dark Shutter open, IR stray light filter open, UV second order stray light filter closed; Jenway 6500-05 Ser Man Page 13 of 105...
  • Page 14 This may also be due to the contamination of optical surfaces. Unable To Detect Peak Light Level, Cuvette left in sample chamber during start up tests, miss-aligned cell carriage, wrong Jenway 6500-05 Ser Man Page 14 of 105...
  • Page 15 SK4 on power supply PCB. Warning Deuterium Lamp Failure, Deuterium lamp faulty, cable disconnected, 6500 set up as 6505. Critical Error Calibration Data Failure, During the start up test sequence the microprocessor has been unable to detect the calibration data stored in the E PROM on the Detector PCB.
  • Page 16 6505 software modules, pressing the left arrow key <<> will invoke the 6500 software modules. Of course a 6505 can be run as a 6500, but errors will occur in the opposite situation, ensure the correct option is selected before leaving the Diagnostics Menu.
  • Page 17 Sodium Iodide – 10g/l in deionised water, should give less than 0.1% transmittance at 220nm. WARNING All these solutions are hazardous and the manufacturer/suppliers safety precautions should be carefully followed at all times in preparation, use and storage. Jenway 6500-05 Ser Man Page 17 of 105...
  • Page 18 Section 3 System Description 3.1 6500 & 6505 Comparison 3.2 Executable Programmes 3.3 Sub-Assemblies 3.4 Accessories 3.5 Outputs Jenway 6500-05 Ser Man Page 18 of 105...
  • Page 19 3.1 6500 & 6505 Comparison The models 6500 and 6505 share the majority of common sub- assemblies. However the 6500 is not fitted with the Deuterium Lamp power Supply PCB and of course the Deuterium Lamp itself. Because of this the optics and monochromator are slightly different, but in arrangement only.
  • Page 20 640 133 Dust Cover 3.5 Outputs The 6500 and 6505 have analogue, RS232 and parallel centronics outputs. Details of the level of the analogue output for the different ranges that may be selected on the instruments is given in Section 6.3 of the Instruction Manual.
  • Page 21 Section 4 Optical Description 4.1 Light Sources 4.2 Stray Light Filters 4.3 Grating 4.4 Beam Splitter 4.5 Signal Detector Jenway 6500-05 Ser Man Page 21 of 105...
  • Page 22 4.1 Light Sources The model 6500 uses a single Tungsten Halogen lamp to cover its full wavelength range of 320nm to 1100nm. The model 6505 uses the same Tungsten Halogen lamp with a ‘see through’ Deuterium lamp to cover its wavelength range of 190nm to 1100nm.
  • Page 23 550nm and 1100nm to eliminate unwanted second order diffraction. 4.3 Grating The 6500 and 6505 optics use the same grating, this is a concave holographic grating with 1200 lines per mm Early units used an American Holographics grating but from serial number 2000 a Richardson grating was used for enhanced UV performance.

  • Page 24: Table Of Contents

    Section 5 Electronic Description 5.1 Power Supplies 5.2 Deuterium Lamp Supplies 5.3 Detector Circuits 5.4 Microprocessor and Memory Functions 5.5 Mouse Driver & Parallel Port 5.6 Accessory Driver PCB Jenway 6500-05 Ser Man Page 24 of 105...

  • Page 25: Power Supplies

    The output to solenoid 3 (UV (Second Order) Stray Light Filter) is via PL1 pin 3 and it is switched on when SK4 pin 14 goes high, this switches TR6 to make PL1 pin 6 low. Jenway 6500-05 Ser Man Page 25 of 105...

  • Page 26: Deuterium Lamp Supplies

    750V, sufficient to strike the arc. When the arc has been struck IC101a and TR100 maintain the current at 300mA. Power is kept to a minimum at varying temperatures by R122, a 10K NTC Thermistor. Jenway 6500-05 Ser Man Page 26 of 105...

  • Page 27: Detector Circuits

    5.3 Detector Circuits Detectors and Amplifiers One of two photodiode detectors is fitted to the PCB, either a S1133 for the Model 6500 or the UV enhanced version S1337 for the 6505. The current through the detector is proportional to the incident light.

  • Page 28: Microprocessor And Memory Functions

    In operation the executable programme is run from IC15 and 16, which permanently retain the data loaded from the application card, this can not be altered and can only be erased by re-loading a new Jenway 6500-05 Ser Man Page 28 of 105...
  • Page 29 Microprocessor IC1 is the microprocessor, which has 16MB of memory and runs at 16MHz using a traditional, Von Neuman, CPU architecture with bus mapped peripherals. I/O address decoding is via IC2. Jenway 6500-05 Ser Man Page 29 of 105...
  • Page 30 18V ac winding from the transformer is rectified then regulated to 5V by REG1 to give a local supply to the ‘piggy back’ PCB that drives the compact fluorescent backlight for the display. Jenway 6500-05 Ser Man Page 30 of 105...

  • Page 31: Accessory Driver Pcb

    The mouse driver is based on an RS232 serial driver with power supplied via IC2. 5.6 Accessory Driver PCB Both 6500 and 6505 models are supplied with the standard Accessory Driver PCB fitted. This is capable of driving all internal sampling accessories. Supplies and controls are also available to drive external accessories such as the peltier/sipper accessory.
  • Page 32 Section 6 Software Description 6.0 Warning 6.1 Start Up Routine 6.2 Main Menu 6.3 Set Up Menus 6.4 Filing System Jenway 6500-05 Ser Man Page 32 of 105...

  • Page 33: Warning

    (visible) lamp filament. This test will be failed if the lamp filament is broken (bulb blown), if the lamp is not fitted, if an incorrect lamp is fitted, if connections to the lamp base are faulty Jenway 6500-05 Ser Man Page 33 of 105...
  • Page 34 ‘Unable to Detect Peak Light level’ is returned. In correct operation when the 200mV level on the other side of the peak is reached, the actual peak wavelength level is picked from Jenway 6500-05 Ser Man Page 34 of 105...

  • Page 35: Main Menu

    The results are displayed in graphical form but tabular data is available. See Section 3.3 of the Instruction manual for more details. Kinetics: - This mode of operation will measure changes of Absorbance, Transmission or Concentration over selected time Jenway 6500-05 Ser Man Page 35 of 105...
  • Page 36 Turning power off while such functions are still being executed will lead to file corruption (which can only be recovered by reformatting the internal memory), invalid data and possible instrument failure. Jenway 6500-05 Ser Man Page 36 of 105...

  • Page 37: Set Up Menus

    Photometrics result is much less than that required for a high resolution spectrum scan. However an icon on the display will show how much space is available on the currently selected storage media. Jenway 6500-05 Ser Man Page 37 of 105...
  • Page 38 Saving to these locations will send the data as a binary file that can only be re-read by the 6500 or 6505 spectrophotometers. For details of the filing system and results or method storage and manipulation see Section 3.1, pages 20 to 24 of the Instruction...
  • Page 39 7.01 The Diagnostics Menu 7.02 Linearised Voltage 7.03 Channel Outputs 7.04 Shutter and Filters 7.05 Lamp Control 7.06 Motor Position Sensor 7.07 Wavelength Functions 7.08 Beam splitter Functions 7.09 Zero Order Cal. 7.10 Calibrate Functions Jenway 6500-05 Ser Man Page 39 of 105...
  • Page 40 Channels 3 and 4 (CH3 and CH4) are generated in a similar manner from the Beam Splitter Signal. The higher gain of channel 4 will be automatically selected if the wavelength is less than 450nm but greater than 265nm. 7.04 Shutter and Filters Jenway 6500-05 Ser Man Page 40 of 105...
  • Page 41 ‘UV Lamp Enabled, when off ‘no’ is shown. 7.06 Motor Position Sensor The status of the opto-coupler that is triggered when the grating reaches the end of its travel is shown in the Diagnostics Menu as ‘Motor Position Sensor’. Jenway 6500-05 Ser Man Page 41 of 105...
  • Page 42 Signal Detector. This will normally be around 10 giving a gain of unity. If set to zero it will effectively turn off the Beam splitter and the instrument will mimic a single beam system. Jenway 6500-05 Ser Man Page 42 of 105...
  • Page 43 Pressing the sign <+/-> key in the Diagnostics Mode will display a series of values for output voltages that enable the analogue output to be set. These settings are stored in the E PROM on the Power Supply PCB. Jenway 6500-05 Ser Man Page 43 of 105...
  • Page 44 Section 8 Maintenance 8.1 Routine Maintenance 8.2 Dismantling 8.3 Energy Levels 8.4 Wavelength Calibration 8.5 Beam Splitter Calibration 8.6 A to D Calibration 8.7 D to A Calibration 8.8 Performance Verification Jenway 6500-05 Ser Man Page 44 of 105...

  • Page 45: Routine Maintenance

    8.1 Routine Maintenance The Jenway Limited, Model 6500 and 6505 have been designed to give optimum performance with minimal maintenance. It is only essential to keep the external surfaces clean and free from dust and to ensure that the area around and underneath the unit is also clean and dust free.
  • Page 46 Disconnect the large multi-pin connector to the transformer, PL6, then the four smaller connectors on the lower front side of the PCB, PL1,PL3, PL12 and PL5, then remove PL7 from the top of Jenway 6500-05 Ser Man Page 46 of 105...
  • Page 47 Lift the monochromator assembly by the pillars only, unplug the connectors PL5, PL1, and PL3. Remove the Yellow/Black and Yellow wires from PL1 to free the monochromator from the lamp assembly. Jenway 6500-05 Ser Man Page 47 of 105...
  • Page 48 PCB and out through the cut out in the rear panel. Always ensure these cables are clear of the fixings so that the wires do not get trapped. Jenway 6500-05 Ser Man Page 48 of 105...

  • Page 49: Energy Levels

    Beam Splitter Output, Set wavelength to 320nm, UV lamp off, Dark Shutter open, IR stray light filter closed, UV second order stray light filter open; CH4 should be greater than 250 counts but less than 1000. Jenway 6500-05 Ser Man Page 49 of 105...

  • Page 50: Wavelength Calibration

    Make a note of the value in the Wavelength Offset option, including whether negative or positive. Press the number seven <7> key to display the Wavelength Offset dialogue box Enter a new number calculated from; (Correction Factor x 10) + existing value. Jenway 6500-05 Ser Man Page 50 of 105...

  • Page 51: Beam Splitter Calibration

    Press the number eight <8> key and set the Beam splitter Offset to the value recorded above. This should now produce a value for CH4 of zero +/- 100 The Beam Splitter Factor should be set to 10, no further adjustment is required. Jenway 6500-05 Ser Man Page 51 of 105...

  • Page 52: A To D Calibration

    8.6 A to D Calibration The A to D converter should only be calibrated by engineers who have been trained on this aspect of servicing by Jenway Limited. Equipment Required; - A certified voltage calibrator with a resolution of 0.1mV and a range up to at least +/-4.0000V.

  • Page 53: D To A Calibration

    When the correct level is reached press the enter key and the prompt moves on to 0mV, repeat the above for this and the 2000mV levels. When successfully completed the Calibrate DAC menu option returns to its original state. Jenway 6500-05 Ser Man Page 53 of 105...

  • Page 54: Performance Verification

    Standard. Items 1 and 2 above can be supplied as Calibration Filter Sets, order part numbers 035 088 for the 6500 or 035 091 for the 6505. Where filters are not available the following reagents may be used: 8.8.1 Wavelength Standard Holmium Perchlorate –...
  • Page 55 (See Section 8.7.2) if the filter set includes a zero filter use this as the blank, if not set the blank (zero absorbance or 100% transmittance) with an empty sample chamber. Jenway 6500-05 Ser Man Page 55 of 105...
  • Page 56 Insert the stray light filter or solutions, as above, and ensure that the reading is within the specified tolerance of the instrument PLUS the tolerance of the filter/solution used. Jenway 6500-05 Ser Man Page 56 of 105...
  • Page 57 Mouse & Parallel Port Schematic 650 012 (1pg) 9.51 Mouse & Parallel Port Layout 650 012 (1pg) 9.60 Accessory Driver PCB Schematic 642 003 (1pg) 9.61 Accessory driver PCB Layout 642 003 (1pg) Jenway 6500-05 Ser Man Page 57 of 105...
  • Page 58 Section 9 Circuit Diagrams 9.10 Power Supply Schematic - 640 008 – 3 pages 9.11 Power Supply Layout – 640 008 – 1 page Jenway 6500-05 Ser Man Page 58 of 105...
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  • Page 63 Section 9 Circuit Diagrams 9.20 Deuterium Lamp Supply Schematic – 640 506 – 2 pages 9.21 Deuterium Lamp Supply Layout - 640 506 – 1 page Jenway 6500-05 Ser Man Page 63 of 105...
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  • Page 67 Detector PCB Schematic – 650 505 – 1 page 9.31 Detector PCB Layout – 650 505 – 1 page 9.32 Beam Splitter Schematic – 650 010 – 1 page 9.33 Beam Splitter Layout – 650 010 – 1 page Jenway 6500-05 Ser Man Page 67 of 105...
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  • Page 72 Section 9 Circuit Diagrams 9.40 Microprocessor PCB Schematic – 650 006 – 6 pages 9.41 Microprocessor PCB Layout - 650 006 - 1 page Jenway 6500-05 Ser Man Page 72 of 105...
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  • Page 80 Section 9 Circuit Diagrams 9.50 Mouse & Parallel Port Schematic – 650 012 – 1 page 9.51 Mouse & Parallel Port Layout – 650 012 – 1 page Jenway 6500-05 Ser Man Page 80 of 105...
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  • Page 83 Section 9 Circuit Diagrams 9.60 Accessory Driver PCB Schematic – 642 003 – 1 page 9.61 Accessory Driver PCB Layout – 642 003 – 1 page Jenway 6500-05 Ser Man Page 83 of 105...
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  • Page 86 Assembly Diagrams 10.1 6500 Final Assembly 650 003 10.2 6505 Final Assembly 650 503 10.3 6500 Lower Case Assembly 650 005 10.4 6505 Lower Case Assembly 650 504 10.5 6500/05 Top Case Assembly 650 004 10.6 6500 Optics Assembly 650 016 10.7...
  • Page 87 Section 10 Assembly Diagrams 10.1 6500 Final Assembly – 650 003 10.2 6505 Final Assembly – 650 503 Jenway 6500-05 Ser Man Page 87 of 105...
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  • Page 90 Section 10 Assembly Diagrams 10.3 6500 Lower Case Assembly – 650 005 10.4 6505 Lower Case Assembly – 650 504 Jenway 6500-05 Ser Man Page 90 of 10...
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  • Page 93 Section 10 Assembly Diagrams 10.5 6500/05 Top Case Assembly – 650 004 Jenway 6500-05 Ser Man Page 93 of 105...
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  • Page 96 Section 10 Assembly Diagrams 10.6 6500 Optics Assembly – 650 016 10.7 6505 Optics Assembly – 650 507 Jenway 6500-05 Ser Man Page 96 of 105...
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  • Page 99 Section 10 Assembly Diagrams 10.8 6500/05 Rear Panel Assembly – 650 018 10.9 6500/05 Multi-cell Changer Assembly – 644 002 Jenway 6500-05 Ser Man Page 99 of 105...
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  • Page 102 Lamp Housing Assembly 11.06 Monochromator Assembly 11.07 Detector PCB 11.08 Power Supply PCB 11.09 Deuterium Lamp Supply PCB 11.10 Rear Panel Assembly 11.11 Mouse/Parallel Port PCB 11.12 Multi-Cell Changer PCB 11.13 Built-In Printer Option Jenway 6500-05 Ser Man Page 102 of 105...
  • Page 103 PCMCIA card with current version software Section 11.03 650 006 Microprocessor PCB. 650 006 Micro-processor PCB Service Exchange 6500 / 05 uprocessor PCB 002 114 C68, C69 220uF 35V radial capacitor low ESR 005 014 Bridge Rectifier WO2 006 172...
  • Page 104 4700uF 40V radial electrolytic capacitor 002 114 C8, 9 220uF 35V radial capacitor low ESR 002 115 2200uF 16V radial capacitor low ESR 002 116 C107 470uF 200V radial capacitor low ESR Jenway 6500-05 Ser Man Page 104 of 105...
  • Page 105 2200uF 16V radial electrolytic capacitor 005 024 Bridge rectifier 4A 016 054 2.5A resettable fuse 020 006 Reg1 Voltage regulator 7805 020 019 Reg2 Voltage regulator 7812 005 040 High speed diode BYW80-200 Jenway 6500-05 Ser Man Page 105 of 105...

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