jenway 6300 Service Manual

Spectrophotometers

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Operating manual (17 pages)

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Page 1 Section 3 System Description Section 4 Optical Description Section 5 Electronic Description Section 6 Software and Operation Section 7 Diagnostics Section 8 Maintenance Section 9 Circuit Diagrams Section 10 Assembly Diagrams Section 11 Spare Parts List Jenway 6300 Ser Man...
Page 2 Section 1 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 6300 Ser Man...
Page 3: Index To Sections
Main Sub-Assemblies Power Supply Voltages Signal Levels Error Codes Special Key Functions Test Solutions Section 3 - System Description Background Sub-Assemblies Accessories Outputs Section 4 - Optical Description Light source Grating Shutter and Filter Signal Detector Jenway 6300 Ser Man...
Page 4 Section 7 – Diagnostics Diagnostics Mode Shutter and Filter Control Lamp Control Zero Order Calibration. Section 8 – Maintenance Routine Maintenance Dismantling Optical Alignment Energy Levels Wavelength Calibration A to D Calibration D to A Calibration Performance Verification Jenway 6300 Ser Man...
Page 5 Microprocessor PCB Schematic 630 013 Microprocessor PCB Layout 630 013 Section 10 - Assembly Diagrams 10.1 6300 Final Assembly 630 503 10.2 6300 Lower Case Assembly 630 510 10.3 6300 Top Case Assembly 630 010 10.4 6300 Optics Assembly 630 508 10.5 6300 Rear Panel Assembly 630 012 Section 11 –...
Page 6: About This Manual
This manual covers the service, maintenance, calibration and repair of the Jenway Ltd model 6300 Spectrophotometer. (From serial number 5000 upwards, for lower numbers please refer to 6300 Mk1 Manual) This manual must be used in conjunction with the Instruction...
Page 7: Standards & Certification
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. Jenway 6300 Ser Man...
Page 8: Returning Items
Jenway Limited Distributor. 1.7 Contacting Jenway Limited Before contacting Jenway Limited please check our web pages for any information or updates that may be helpful to you. www.jenway.com Emails should be sent to sales@jenway.com...
Page 9: Quick Reference
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 6300 Ser Man...
Page 10: About 'Quick Reference'
Better than 1% per Hour (after warm up) Readout Custom LCD Outputs Analogue (0 to 1999mV) & RS232 Serial Supply Voltages 115/230 V a.c. Power Less than 50W Dimensions 365 (w) x 272 (d) x 160 (h) mm Weight Jenway 6300 Ser Man...
Page 11: Main Sub-Assemblies
Tungsten Halogen lamp 032 005 12V Solenoid 630 516 IR Filter 630 012 Rear Panel Assembly – includes the following… 016 021 2A Fuse 20 x 5mm 017 050 Mains Switch 009 123 Mains Input Socket Jenway 6300 Ser Man...
Page 12: Power Supply Voltages
PCB, measure between pins 2 (positive) and 15 (0V) on IC101 on the Display PCB. -10V dc generated on the RS232 Interface, IC101, on the Display PCB, measure between pins 8 (negative) and 15 (0V) on IC101 on the Display PCB. Jenway 6300 Ser Man...
Page 13: Signal Levels
720nm Output, Set wavelength to 720nm, Dark Shutter open, IR stray light filter open, Voltage Display must not be greater than 3600mV. If greater than 3600mV check the lamp, lamp supply voltage, other power supply levels and detector PCB. Jenway 6300 Ser Man...
Page 14: Error Codes
Err 5, No zero order (white) light found during wavelength calibration in start up routine. This error is given during the wavelength calibration routine, indicating that even the initial threshold level was not achieved. Possible causes are; incorrect Jenway 6300 Ser Man...
Page 15: Special Key Functions
See Section 8.6. View Start Up Routine. Hold the <Cal> key depressed while turning on the power. This enables the detector output and grating position to be monitored on the display during the Start Up Routine. Jenway 6300 Ser Man...
Page 16: Test Solutions
3. Sodium Nitrate – 50g/l in deionised water, should give less than 0.1% Transmittance at 340nm. All these solutions are hazardous and the manufacturer/suppliers safety precautions should be carefully followed at all times in preparation, use and storage. Jenway 6300 Ser Man...
Page 17: System Description
Section 3 System Description 3.1 Background 3.2 Sub-Assemblies 3.3 Accessories 3.4 Outputs Jenway 6300 Ser Man...
Page 18 3.1 Background The model 6300 is a single beam, visible spectrophotometer with Absorbance, Transmission and Concentration measurement modes. It is a direct replacement for the earlier model 6100. This manual covers the service, maintenance and repair of all units with a serial number greater than 5000. For the service, maintenance and repair of units with serial numbers less than 5000 please refer to the 6300 Mark 1 Service Manual.
Page 19 Pin configuration for the RS232 socket is given in Section 6.2 of the Instruction Manual. Section 6.1 of the Instruction Manual gives details of the various ASCII codes that may be transmitted to the 6300 to enable complete remote control from a terminal or PC. Jenway 6300 Ser Man...
Page 20: Optical Description
Section 4 Optical Description 4.1 Light Source 4.2 Grating 4.3 Shutter and Filter 4.4 Signal Detector Jenway 6300 Ser Man...
Page 21: Light Source
4.4 Signal Detector An S1133 photo-diode is used as the detector on the 6300, it is mounted directly onto the detector PCB, behind the lens block The detector PCB carries out all of the analogue signal processing,...
Page 22: Electronic Description
Section 5 Electronic Description 5.1 Power Supplies 5.2 Detector Circuit 5.3 Microprocessor and Display Jenway 6300 Ser Man...
Page 23: Power Supplies
PCB via SK5. IC1 and 2, TEA3717DP, are the stepper motor drivers, controlled from the microprocessor PCB via SK5 pins 9 to 12, with outputs to the motor on SK2 pins 5 to 8. Jenway 6300 Ser Man...
Page 24: Microprocessor And Display
The later are also stored in non-volatile E PROM to enable the last settings to be restored after power has been interrupted or switched off. Jenway 6300 Ser Man...
Page 25 The watchdog circuit (IC100) monitors the activity of the processor, while IC101 generates the correct levels for the RS232 output. The four amplifiers in IC300 form the D to A converter which generates the analogue output. Jenway 6300 Ser Man...
Page 26 Section 6 Software and Operation 6.0 Warning 6.1 Start Up Routine 6.2 Photometrics 6.3 Concentration Jenway 6300 Ser Man...
Page 27: Start Up Routine
Instruction Manual, its purpose is to enable basic navigation through the operation and set up of the 6300 spectrophotometer sufficient to verify basic operation. 6.1 Start Up Routine When the power to the unit is switched on a self-test routine is activated.
Page 28 Absorbance measurement mode. These two modes are calibrated by simply inserting a cuvette or test tube containing a blank solution in the sample chamber, closing the lid and pressing the CAL pushbutton. The CAL icon on the display will flash while Jenway 6300 Ser Man...
Page 29 Insert a cuvette or test tube containing the known standard solution into the sample chamber, close the lid and press the CAL key. The CAL icon on the display will flash and the up or Jenway 6300 Ser Man...
Page 30 CONC icon using the left arrow key. Cuvettes or test tubes containing samples can then be inserted in the sample chamber, the lid closed and readings taken directly from the display. Jenway 6300 Ser Man...
Page 31 Section 7 Diagnostics 7.1 The Diagnostics Mode 7.2 Shutter and Filter Control 7.3 Lamp Control 7.4 Zero Order Calibration Jenway 6300 Ser Man...
Page 32 7.4 Zero Order Calibration Warning;- This procedure can be used to re-set the stored wavelength calibration data, so a new wavelength calibration must be carried Jenway 6300 Ser Man...
Page 33 CAL key by using the up or down arrows to set the display to the required offset. If step 7 was used a wavelength calibration must be carried out; in both cases a performance verification as detailed in Section 8.8 must be carried out. Jenway 6300 Ser Man...
Page 34: Maintenance
Section 8 Maintenance 8.1 Routine Maintenance 8.2 Dismantling 8.3 Optical Alignment 8.4 Energy Levels 8.5 Wavelength Calibration 8.6 A to D Calibration 8.7 D to A Calibration 8.8 Performance Verification Jenway 6300 Ser Man...
Page 35: Routine Maintenance
8.1 Routine Maintenance The Jenway Limited, Model 6300 Spectrophotometer has 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 36 PCB without a full re-calibration will invalidate the quoted specification. Monochromator The monochromator is located across the front of the lower case. It is a sealed unit and breaking the seals will Jenway 6300 Ser Man...
Page 37: Optical Alignment
This procedure can irreversibly affect the performance and operation of the instrument. Please read the following warnings and request help or clarification before proceeding. Carrying out this procedure will invalidate the manufacturers optical performance specification and should only be Jenway 6300 Ser Man...
Page 38 LAMP is fitted, (refer to the instruction manual for details). There are many lamps that look similar but the filament position is critical and can only be guaranteed on Jenway lamps, replacing the lamp may correct the problem without any further re-alignment.
Page 39 Press the up and down arrow keys and check to see if the mV reading can be increased as the wavelength changes. If the display goes over-range (1. ) Press the left arrow key to reduce the lamp brightness. Jenway 6300 Ser Man...
Page 40 Press the down arrow key again to reduce the wavelength to –50nm, the voltmeter should now read approximately 5.00V. Press the up arrow key and return the wavelength setting to –40nm and the voltmeter reading should return to approximately 0.100V. Jenway 6300 Ser Man...
Page 41 For more information see Section 5.3 - Detector Circuit and Section 7.1 – The Diagnostics Mode. This voltage display can be used to check lamp energy (ageing), the correct functioning of the IR Stray Light filter as well as the Dark Shutter. Jenway 6300 Ser Man...
Page 42: Wavelength Calibration
Select the absorbance or transmission modes, using the right or left arrow keys, depending on whether an Absorbance or transmittance standard or filter is being used. Jenway 6300 Ser Man...
Page 43 Press the down arrow key until the wavelength display reads 0.0. Press the left arrow key to dim the lamp. Use the up and down arrow keys to set the display to the correction factor calculated above (observe polarity) Jenway 6300 Ser Man...
Page 44 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 45 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 display returns to the last settings used in the measurement mode. Jenway 6300 Ser Man...
Page 46: Performance Verification
Turn the unit on and allow the Start Up tests to complete then allow 15 minutes for the instrument to warm up. Use the up and down arrow keys to select a wavelength about 10nm below the certified wavelength of the filter or standard to be used. Jenway 6300 Ser Man...
Page 47 Calibration at the initial wavelength with the filter or standard in the sample chamber. Check that the reported peak wavelength falls within the specified tolerance of the instrument PLUS the tolerance of the filter or standard used. Jenway 6300 Ser Man...
Page 48 Insert the certified filter or Potassium Dichromate solution and check that the reading is within the specified tolerance of the instrument PLUS the tolerance of the filter/solution used. Repeat this for other filters or solutions and at other specified wavelengths as necessary. Jenway 6300 Ser Man...
Page 49 Press the CAL key and ensure the reading is 100.0% 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 6300 Ser Man...
Page 50: Circuit Diagrams
9.1 Power Supply Schematic 630 504 9.2 Power Supply Layout 630 504 9.3 Detector PCB Schematic 630 506 9.4 Detector PCB Layout 630 506 9.5 Microprocessor PCB Schematic 630 013 9.6 Microprocessor PCB Layout 630 013 Jenway 6300 Ser Man...
Page 59: Assembly Diagrams
Section 10 Assembly Diagrams 10.1 6300 Final Assembly 630 503 10.2 6300 Lower Case Assembly 630 510 10.3 6300 Top Case Assembly 630 010 10.4 6300 Optics Assembly 630 508 10.5 6300 Rear Panel Assembly 6630 012 Jenway 6300 Ser Man...
Page 65: Spare Parts
Section 11 Spare Parts 11.01 Packed Instrument 11.02 Top Case Assembly 11.03 Microprocessor PCB 11.04 Lower Case Assembly 11.05 Monochromator Assembly 11.06 Detector PCB 11.07 Power Supply PCB 11.08 Rear Panel Assembly Jenway 6300 Ser Man...
Page 66: Spare Parts List
6300 SPARE PARTS LIST Part Number Drwg/Cct Description Section 11.01 630 501 Packed Instrument. 033 227 Packing case complete with inserts 060 084 Disposable cuvettes (4ml) pack of 100 630 026 Instruction manual 013 046 Mains cable without plug 013 083 Mains Cable U.S.A.
Page 67 009 125 4mm socket black Section 11.10 640 006 Rear Panel Assembly. 009 123 Mains input socket 016 021 2A fuse 20mm (for 220V supply) 062 241 Lamp Panel Retaining Screw 017 050 Switch rocker 2p Jenway 6300 Ser Man...

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