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jenway 6300, Service Manual

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Jenway 6300 Ser Man

1

 Jenway 6300

Spectrophotometer Service Manual

Main Index

Section 1

Introduction

Section 2

Quick Reference

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

Summary of Contents for 6300

Page 1: ...troduction Section 2 Quick Reference Section 3 System Description Section 4 Optical Description Section 5 Electronic Description Section 6 Software and Operation Section 7 Diagnostics Section 8 Mainte...

Page 2: ...n 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 Contacti...

Page 3: ...ing Items 1 7 Contacting Jenway Limited 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 Sp...

Page 4: ...Start Up Routine 6 2 Photometrics 6 3 Concentration Section 7 Diagnostics 7 1 Diagnostics Mode 7 2 Shutter and Filter Control 7 3 Lamp Control 7 4 Zero Order Calibration Section 8 Maintenance 8 1 Rou...

Page 5: ...n 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 01...

Page 6: ...way 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 In practice...

Page 7: ...from the supplier This instrument can be used for analysing a broad range of samples do not handle them unless you are qualified to do so Ensure that the instrument has been correctly decontaminated b...

Page 8: ...ng 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 Fax 44...

Page 9: ...0 Ser Man 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...

Page 10: ...1nm Wavelength Accuracy 2nm Spectral Bandwidth 8 0nm Light Source Tungsten Halogen Optics Single Beam Transmittance Range 0 to 199 9 Resolution 0 1 Absorbance Range 0 300A to 1 999A Resolution 0 001A...

Page 11: ...bly includes the following 630 508 Optics Assembly 630 504 Power Supply PCB 630 506 Detector PCB 060 311 Cooling Fan 010 040 Torroidal Transformer 630 508 Optics Assembly includes the following 012 07...

Page 12: ...ply PCB and at the terminals on the lamp base with the lamp fitted Solenoid and Fan Supplies 12V dc regulated and pre set measure at SK1 pin 1 with respect to SK1 pin 2 on the power supply PCB and on...

Page 13: ...ading to stabilise and record the stable value Open the dark shutter by pressing the right arrow key and the mV reading must increase by more than 4mV from that recorded above If not the lamp should b...

Page 14: ...velengths where these materials will absorb a high proportion of the light energy Err 3 Standard out of range in a concentration measurement This may be because the standard is too optically dense at...

Page 15: ...on will always start Failure to detect this point may be due to a faulty opto coupler wavelength drive from the power supply PCB a faulty motor or mechanical coupling 2 6 Special Key Functions There a...

Page 16: ...a position where white light zero order is reflected on to the detector A second press of this key is required to confirm the setting before resuming the normal diagnostic functions See Section 7 4 p...

Page 17: ...Jenway 6300 Ser Man 17 Section 3 System Description 3 1 Background 3 2 Sub Assemblies 3 3 Accessories 3 4 Outputs...

Page 18: ...aceable sub assembly There is a range of sampling accessories that can be easily fitted and removed from the sample chamber See Section 2 2 for details of the main sub assemblies and Section 11 for de...

Page 19: ...RS232 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 Pin configuration for the R...

Page 20: ...Jenway 6300 Ser Man 20 Section 4 Optical Description 4 1 Light Source 4 2 Grating 4 3 Shutter and Filter 4 4 Signal Detector...

Page 21: ...s an end stop when the sensor vane connected to the grating mount blocks the light path across it 4 3 Shutter and Filter The diffracted spectrum then passes through a further slit and lens arrangement...

Page 22: ...Jenway 6300 Ser Man 22 Section 5 Electronic Description 5 1 Power Supplies 5 2 Detector Circuit 5 3 Microprocessor and Display...

Page 23: ...anually instigated by pressing the left arrow key when in the Diagnostics Mode Solenoid and Fan Supply The output of the switch mode regulator REG1 is pre set to 12V The output to the fan is via Sk1 p...

Page 24: ...n 32767 counts In effect this means CH2 will be selected for inputs up to 40mV CH1 for inputs up to 400mV and CH0 for inputs up to 4 0V The A to d converter requires a reference voltage of 4 096V whic...

Page 25: ...component and will invalidate the warranty IC103 is a 3 to 8 line address decoder that can select the peripheral devices on the data bus being the keypad interface through IC104 or the display driver...

Page 26: ...Jenway 6300 Ser Man 26 Section 6 Software and Operation 6 0 Warning 6 1 Start Up Routine 6 2 Photometrics 6 3 Concentration...

Page 27: ...or mechanical or if the Detector or Detector PCB is faulty Wavelength Calibration This test checks for the zero order white light that is reflected through the sample chamber when the grating is in a...

Page 28: ...r is incorrectly fitted aligned such that it obscures the light beam Also if the incorrect lamp is fitted if the lamp has not been fitted correctly if the dark shutter is stuck in the closed position...

Page 29: ...to be made against a standard solution CONC mode or by entering a factor which adjust the slope of the straight line relationship xF mode The latter is also often used to improve the sensitivity of c...

Page 30: ...by moving the cursor using the right or left arrow keys along the bottom menu bar until it is under the xF icon For future assays this factor could be used instead of the standard solution but good p...

Page 31: ...Jenway 6300 Ser Man 31 Section 7 Diagnostics 7 1 The Diagnostics Mode 7 2 Shutter and Filter Control 7 3 Lamp Control 7 4 Zero Order Calibration...

Page 32: ...ter is open Once the diagnostics mode has been activated alternate presses of the print key will toggle the Infra red filter in and out of the light path A similar effect to the above can be used to d...

Page 33: ...y to dim the lamp 5 Use the up and down arrow keys to move in 0 5nm steps either side of zero and identify at which wavelength a peak mV reading is obtained Note this reading 6 Pressing the CAL key wi...

Page 34: ...er Man 34 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...

Page 35: ...to the original carton for re shipment a further external packing case suitable for the method of carriage should be used Details of all routine maintenance tasks including changing the lamp can be f...

Page 36: ...ew the four screws and the PCB can be removed The display module and microprocessor PCB should be treated as a pair and replaced together Removing the display from the PCB should not be attempted Dete...

Page 37: ...emoved as above the power supply PCB is easily removed by undoing the four screws holding it to the lower case assembly SK3 to the transformer and SK1 to the fan should be removed before lifting it ou...

Page 38: ...ay lamps replacing the lamp may correct the problem without any further re alignment 1 Remove the top half of the case by undoing the four recessed screws in the corners of the base 2 Place the top ha...

Page 39: ...or down arrow key to move the white zero order light beam towards the exit slit Usually the down arrow key The wavelength displayed should be seen to decrease towards zero 12 Keep pressing the down or...

Page 40: ...the risk of electric shock connect the power cable and depress the right arrow key while turning the power switch on The display should show a mV reading on the top row followed by the wavelength on t...

Page 41: ...he position press the down arrow key to set the wavelength to 50nm slacken the two fixing screws slightly and adjust the position of the opto coupler until the voltmeter reading just changes from 0 10...

Page 42: ...detector PCB may be faulty 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...

Page 43: ...uring the test then carry out the Calibration at the initial wavelength with the filter or standard in the sample chamber Calculate the adjustment required to correctly align the reported figure with...

Page 44: ...8 pin Molex type connector Access the Detector PCB by removing the top case assembly as described in Section 8 2 Dismantling Remove the jumper from pins 3 and 4 on SK2 on the Detector PCB and fit the...

Page 45: ...The upper display will show dAC mV and the lower display will indicate the mV level that should be available on the Analogue output Connect a voltmeter to the analogue output on the rear panel Select...

Page 46: ...50nm 0 484 at 313nm Potassium Dichromate 50 0mg l in 0 005M Sulphuric Acid use the Sulphuric Acid as the blank This will give Absorbance values of 0 536 at 350nm 0 242 at 313nm 8 8 3 Sodium Nitrate 50...

Page 47: ...decreased further Repeat the above until the first Absorbance value decreases or the first Transmission value increases At this point press the down arrow key and check that the previous value is atta...

Page 48: ...a blank See Section 8 8 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 Insert the blank ref ab...

Page 49: ...for Sodium Nitrate Select the Transmission mode by using the right and left arrow keys to move the cursor on the bottom menu bar under the T icon Fill a cuvette with the deionised water used to make u...

Page 50: ...9 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 Mi...

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Page 59: ...Man 51 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 As...

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Page 65: ...2 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...

Page 66: ...processor PCB 630 013 Micro processor PCB 630 512 EPROM Programmed Section 11 04 630 510 Lower Case Assembly 010 040 Torroidal transformer assembly 060 040 Large rubber feet 060 311 Cooling fan 12V 60...

Page 67: ...tic capacitor 020 027 L4960 voltage regulator 006 115 25 way D socket 009 124 4mm socket red 009 125 4mm socket black Section 11 10 640 006 Rear Panel Assembly 009 123 Mains input socket 016 021 2A fu...

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