Unico SQ Series Service Manual
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Unico SQ Series Service Manual

Spectrophotometer
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UNICO SQ Series
MODEL
UV-2800 / UV-2802 /UV-2802PC/UV-2802S/
UV-2802PCS / UV-3802 / UV-4802
SPECTROPHOTOMETER
SERVICE MANUAL
UNICO
182 Ridge Road, Suite E Dayton, NJ 08810 USA
732-274-1155 Fax: 732-274-1151 WEB:
www.unicosci.com
E-mail: Sales@unicosci.com

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  • Page 1 UNICO SQ Series MODEL UV-2800 / UV-2802 /UV-2802PC/UV-2802S/ UV-2802PCS / UV-3802 / UV-4802 SPECTROPHOTOMETER SERVICE MANUAL UNICO 182 Ridge Road, Suite E Dayton, NJ 08810 USA 732-274-1155 Fax: 732-274-1151 WEB: www.unicosci.com E-mail: Sales@unicosci.com...

  • Page 2: Table Of Contents

    C O N T E N T S 1. Introduction…………………………………………………… 2. Specifications………………………………………………… 3. Layout………………………………………………………… 3.1 Layout of UV-2800…………………………………………………… 3.2 Layout of UV-2802(S),UV-2802PC(S)……………………………… 3.3 Layout of UV-3802…………………………………………………… 3.4 Layout of UV-4802…………………………………………………… 4. Optical System………………………………………………… 25 4.1 Incidence of Light……………………………………………………… 4.2 Dispersion of Light…………………………………………………… 4.3 Exit of Light……………………………………………………………...
  • Page 3 5.2.2 Drive PCB……………………………………………………………………… 5.2.3 Transferring PCB……………………………………………………………… Sampling and Signal Processing System…………………………… 48 5.3.1 Amplifier PCB………………………………………………………………… 5.3.2 Slave Amplifier PCB…………………………………………………………… 5.3.3 Slave CPU PCB……………………………………………………………… 6. Trouble Shooting……………………………………………… 56 6.1 Tungsten lamp off……………………………………………………… 56 6.2 Deuterium lamp off…………………………………………………… 6.3 Memory check failed………………………………………………… 6.4 Printer check failed……………………………………………………...
  • Page 4 6.16 “Energy low” warning after blanking……………………………… 6.17 “Energy too low” warning…………………………………………… 6.18 No DC +12V on PCB SST8.412.113……………………………… 7. Maintenance…………………………………………………… 71 7.1 Working Environment………………………………………………… 7.2 Replace Tungsten Lamp……………………………………………… 7.3 Replace Deuterium Lamp…………………………………………… 7.4 Replace Memory Battery…………………………………………… 7.5 Upgrade Firmware…………………………………………………… 7.6 Check Performance…………………………………………………… 7.6.1 Prepare……………………………………………………………………………...

  • Page 6: Introduction

    Introduction 1. Introduction The SQ series Spectrophotometer are available in five models, the model UV-2800, UV-2802, UV-2802S, UV-3802 and UV-4802. This series products cover the Ultra Violet and Visible wavelength regions from 190nm to1100nm. The analytical grating system has 1200 grooves/mm for high spectral dispersion.
  • Page 7 Introduction Figure 1.2 Model UV-2802, UV-2802S Figure 1.3 Model UV-2802PC, UV-2802PCS Figure 1.4 Model UV-3802 - 2 -...
  • Page 8 Introduction Figure 1.5 Model UV-4802 - 3 -...

  • Page 9: Specifications

    Specifications 2. Specifications - 4 -...

  • Page 10: Layout

    Layout 3. Layout 3.1 Layout of UV-2800 1. Cooling Fan 2. Concave Mirror 3. Tungsten Lamp(W Lamp) 4. Heat Radiator 5. D2/W Power Supply PCB 6. Motor1(Lamp Change) 7. Transformer 8. Mirror1(Lamp Change) 9. Lamp Limit Switch 10. Light Blocking Shelf 11.
  • Page 11 Layout Figure 3.1 Layout of UV-2800 Inside Top View - 6 -...
  • Page 12 Layout Figure 3.2 Layout of UV-2800 Inside Bottom View - 7 -...
  • Page 13 Layout Figure 3. 3 Layout of UV-2800 Top View - 8 -...
  • Page 14 Layout 230V Figure 3. 4 Layout of UV-2800 Back View - 9 -...

  • Page 15: Layout Of Uv-2802(S),Uv-2802Pc(S)

    Layout 3.2 Layout of UV-2802(S), UV-2802PC(S) 1. Cooling Fan 2. Concave Mirror 3. Tungsten Lamp(W Lamp) 4. Heat Radiator 5. D2/W Power Supply PCB 6. Motor1(Lamp Change) 7. Transformer 8. Mirror1(Lamp Change) 9. Lamp Limit Switch 10. Light Blocking Shelf1 11.
  • Page 16 Layout Figure 3.5 Layout of UV-2802, UV-2802PC Inside Top View - 11 -...
  • Page 17 Layout Figure 3.6 Layout of UV-2802S, UV-2802PCS Inside Top View - 12 -...
  • Page 18 Layout Figure 3.7 Layout of UV-2802(S), UV-2802PC(S) Inside Bottom View - 13 -...
  • Page 19 Layout Figure 3.8 Layout of UV-2802(S) Top View - 14 -...
  • Page 20 Layout 230V Figure 3.9 Layout of UV-2802(S) , UV-2802PC(S) Back View - 15 -...

  • Page 21: Layout Of Uv-3802

    Layout 3.3 Layout of UV-3802 1. Cooling Fan 2. Concave Mirror 3. Tungsten Lamp(W Lamp) 4. Heat Radiator 5. D2/W Power Supply PCB 6. Motor1(Lamp Change) 7. Transformer 8. Mirror1(Lamp Change) 9. Lamp Limit Switch 10. Light Blocking Shelf1 11. Deuterium Lamp(D2 lamp) 12.
  • Page 22 Layout Figure 3.10 Layout of UV-3802 Inside Top View - 17 -...
  • Page 23 Layout Figure 3.11 Layout of UV-3802 Inside Bottom View - 18 -...
  • Page 24 Layout Figure 3.12 Layout of UV-3802 Top View - 19 -...
  • Page 25 Layout 230V Figure 3.13 Layout of UV-3802 Back View - 20 -...

  • Page 26: Layout Of Uv-4802

    Layout 3.4 Layout of UV-4802 1. Cooling Fan 2. Concave Mirror 3. Tungsten Lamp(W Lamp) 4. Heat Radiator 5. D2/W Power Supply PCB 6. Motor1(Lamp Change) 7. Transformer 8. Mirror1(Lamp Change) 9. Lamp Limit Switch 10. Light Blocking Shelf1 11. Deuterium Lamp(D2 lamp) 12.
  • Page 27 Layout - 22 -...
  • Page 28 Layout Figure 3.14 Layout of UV-4802 Inside Top View - 23 -...
  • Page 29 Layout Figure 3.15 Layout of UV-4802 Inside Bottom View - 24 -...
  • Page 30 Layout Figure 3.16 Layout of UV-4802 Top View - 25 -...
  • Page 31 Layout 230V Figure 3.17 Layout of UV-4802 Back View - 26 -...

  • Page 32: Optical System

    Optical 4. Optical System The optical system of SQ series Spectrophotometers are adopted littrow type with 1200lines/mm grating, UV-2800, UV-2802,UV-2802PC, UV-2802S UV-2802PCS are Single Beam, the optical system schematic diagram are shown in 4.1. UV-3802 and UV-4802 are Split Beam and Double Beam, the optical system schematic diagram are shown in 4.2 and 4.3.
  • Page 33 Optical Figure 4.1 Optical System schematic diagram of UV-2800, UV-2802, UV-2802S, UV-2802PC, UV-2802PCS - 28 -...
  • Page 34 Optical Figure 4.2 Optical System schematic diagram of UV-3802 - 29 -...
  • Page 35 Optical Figure 4.3 Optical System schematic diagram of UV-4802 - 30 -...

  • Page 36: Electronic System

    Electronic System 5. Electronic System Power Supply Socket Power Switch 115V/230 Selector (3EGG1-2) (R 220-22C-11D) (L21-22A1) Connector (4508A) Transformor Wht,Brw,Org,R ed Yel/Grn Yel/Grn Switch Power (T-60B) Yel/Grn (SST8.411.128A) (SST8.411.130A) (SST8.413.104A) (-12V) -V (-12V) -V (+12V) +V (+12V) +V (SST8.412.113) (SST8.417.100) (SST8.412.314A) (SST8.414.103) (SST8.417.102)
  • Page 37 Electronic System Power Supply Socket Power Switch 115V/230 Selector (3EGG1-2) (R 220-22C-11D) (L21-22A1) Connector (4508A) Transformor Wht,Brw,Org,R ed Yel/Grn Yel/Grn Switch Power (T-60B) Yel/Grn (SST8.411.128A) (SST8.411.130A) (SST8.413.104A) (-12V) -V (-12V) -V (+12V) +V (+12V) +V (SST8.412.113) (SST8.417.100) (SST8.412.314A) (SST8.414.104) Keypad Only for UV-2802 Figure 5.2 Connection of UV-2802, UV-2802PC - 32 -...
  • Page 38 Electronic System Power Supply Socket Power Switch 115V/230 Selector (3EGG1-2) (R 220-22C-11D) (L21-22A1) Connector (4508A) Transformor Wht,Brw,Org,R ed Yel/Grn Yel/Grn Switch Power (T-60B) Yel/Grn (SST8.411.128A) (SST8.411.130A) (SST5.413.104A) (-12V) -V (-12V) -V (+12V) +V (+12V) +V (SST8.412.113) (SST8.417.100) (SST8.412.314A) (SST8.414.104) Keypad Only for UV-2802S Figure 5.3 Connection of UV-2802S, UV-2802PCS - 33 -...
  • Page 39 Electronic System Power Supply Socket Power Switch 115V/230 Selector (3EGG1-2) (R 220-22C-11D) (L21-22A1) Connector (4508A) Transformor Wht,Brw,Org,R ed Yel/Grn Yel/Grn Switch Power (T-60B) (SST8.413.103A) Yel/Grn (SST8.411.128A) (SST8.411.130A) (SST8.413.104A) (-12V) -V (-12V) -V (+12V) +V (+12V) +V (SST8.412.113) (SST8.417.100) (SST8.412.314A) (SST8.414.104) Keypad Figure 5.4 Connection of UV-3802 - 34 -...
  • Page 40 Electronic System Power Supply Socket Power Switch 115V/230 Selector (3EGG1-2) (R 220-22C-11D) (L21-22A1) Connector (4508A) Transformor Wht,Brw,Org,R ed Yel/Grn Yel/Grn Switch Power (T-60B) (SST8.413.104A) Yel/Grn (SST8.411.128A) (SST8.411.130A) (SST8.413.104A) (-12V) -V (-12V) -V (+12V) +V (+12V) +V (SST8.412.113) (SST8.417.100) (SST8.412.314A) (SST8.414.104) Keypad Figure 5.5 Connection of UV-4802 - 35 -...

  • Page 41: Power Supply System

    Electronic System 5.1 Power Supply System Figure 5.6 Power Supply schematic diagram of UV-2800, UV-2802, UV-2802PC, UV-2802S, UV-2802PCS - 36 -...
  • Page 42 Electronic System Figure 5.7 Power Supply schematic diagram of UV-3802, UV-4802 The power supply system of the SQ series are made up of two parts, the transformer supplied for the light source as Tungsten lamp and Deuterium lamp, and the Switch Power Supply supplied for the control system as CPU, Driver …,...

  • Page 43: Power Supply Pcb

    Electronic System and so on. The schematic diagrams are shown in figure 5.6 and 5.7. 5.1.1 Power Supply PCB(SST8.411.128A) The layout of the Power Supply PCB is shown in figure 5.8 Figure 5.8 Layout of Power Supply PCB The sockets description of the Power Supply PCB as follow: J1---To Rectifier Pin 1: DC +18V...

  • Page 44: Power Distributing Pcb

    Electronic System Pin 1: DC +118V(+131V) Pin 2: DC +49V(+11.5V) Pin 3: DC +49V(+11.5V) Note: When staring the Deuterium lamp, the voltage refer in the ( ). J8---To Tungsten Lamp Pin 1: DC +11V Pin 2: J9---From Main CPU PCB Pin 1, 2: DC +5V Pin 3:...

  • Page 45: Control And Drive System

    Electronic System Pin 3, 4, 5: DC +12V Pin 8, 9, 10: J2---To (Main) Amplifier PCB Pin 1: DC +9V Pin 2: Pin 3: DC -9V J3---To Transferring PCB(In Upper Case) Pin (1, 3): AC 1200V J4---To Main CPU PCB Pin 1, 2: DC +12V Pin 3, 4:...
  • Page 46 Electronic System Figure 5.10 Working Principle of UV-2800, UV-2802(S) - 41 -...
  • Page 47 Electronic System Figure 5.11 Working Principle of UV-3802 - 42 -...

  • Page 48: Main Cpu Pcb

    Electronic System Figure 5.12 Working Principle of UV-4802 5.2.1 Main CPU PCB(SST8.412.113) The layout of the main CPU PCB is shown in figure 5.13 - 43 -...
  • Page 49 Electronic System Figure 5.13 Layout of Main CPU PCB - 44 -...
  • Page 50 Electronic System The sockets description of the main CPU PCB as follow: CZ1---From Power Distributing PCB Pin 1, 2: DC +12V Pin 3, 4: Pin 5, 6: DC +5V CZ2---To Slave CPU PCB Pin 1: Reset W78E52B on Slave CPU PCB Pin 2: Transfer signal to W78E52B on Slave CPU PCB Pin 3:...

  • Page 51: Drive Pcb

    Electronic System Pin 7: J17---To Program Switch for Software Update Pin 1: DC +5V (0V). +5V: instrument is working on “Test Mode”, or it working on “Program Mode”. Pin 2: J18---To Contrast Adjustor Pin 1: DC -20.5V Pin 2: DC +5V- -20.5V, contrast adjust Pin 3: DC +5V CN1---To Drive PCB...
  • Page 52 Electronic System Figure 5.15 Layout of UV-2802S,UV-2802PCS Drive PCB Figure 5.16 Layout of UV-2802, UV-2802PC, UV-3802, UV-4802 Drive PCB The sockets description of the Drive PCB as follow: CN1---From Main CPU PCB Pin 1-4: Control slit step motor Pin 5: Slit Photo-coupler signal Pin 6: Wavelength Photo-coupler and limit switch signal...

  • Page 53: Transferring Pcb

    Electronic System Pin 9,11,13,15: GND Pin 10,12,14,16: DC +12V CN2--- From Main CPU PCB Pin 1: Pin 2: DC +5V Pin 3-6: Control wavelength step motor Pin 7-10: Control filter step motor Pin 11-14: Control lamp Change step motor J4--- To lamp Change step motor Pin 1-4: Drive slit step motor Pin 5:...
  • Page 54 Electronic System Figure 5.17 Layout of Transferring PCB(In Upper Case) The sockets description of the Transferring PCB(In Upper Case) as follow: J3---From Power Distributing PCB Pin (1, 3): AC 1200V J31---To LCD back light Pin (1, 2): AC 1200V CZ4---From Main CPU PCB Pin 1-8: Output signal to Keypad Pin 9-12:...

  • Page 55: Sampling And Signal Processing System

    Electronic System 5.3 Sampling and Signal Processing System The working principle as follow: 1. The photo-detector receives the light signal, converts it to be electrical signal (analog signal); 2. Amplifier the analog signal, the multiple is control by the CPU on the Slave CPU PCB (W78E52B);...
  • Page 56 Electronic System Pin 1: Pin 2: Analog signal from pin 6 of OP07 Pin 8: DC +5V Pin 3-7: Control amplifier multiple from Slave CPU PCB The amplifier multiple of UV-2800, UV-2802(S) Amplifier PCB as follow: Amplifier Pin 3 Pin 4 Pin 5 Pin 6 Pin 7...
  • Page 57 Electronic System Figure 5.19 Layout of UV-4802 Amplifier PCB The sockets description of the Amplifier PCB of UV-4802 as follow: J1---From Power Distributing PCB Pin 1: DC +9V Pin 2: Pin 3: DC -9V J2---From Slave CPU PCB Pin 1,2,3,5,7,9,11,13,15: GND Pin 4: Analog signal from pin 6 of OP07 Pin 16:...

  • Page 58: Slave Amplifier Pcb

    Electronic System 5.3.2 Slave Amplifier PCB(SST8.413.103A or SST8.413.104A) Figure 5.20 Layout of UV-3802 Slave Amplifier PCB The sockets description of the slave Amplifier PCB of UV-3802 as follow: J1---From Power Distributing PCB Pin 1: DC +9V Pin 2: Pin 3: DC -9V J2---From Slave CPU PCB Pin 1:...
  • Page 59 Electronic System Figure 5.21 Layout of UV-4802 Slave Amplifier PCB The sockets description of the slave Amplifier PCB of UV-4802 as follow: Pin 1: DC +9V Pin 2: Pin 3: DC -9V J2---From Slave CPU PCB Pin 1,2,3,5,7,9,11,13: Pin 4: Analog signal from pin 6 of OP07 Pin 6,8,10,12,14: Control amplifier multiple from Slave CPU...

  • Page 60: Slave Cpu Pcb

    Electronic System 5.3.3 Slave CPU PCB(SST8.412.314) The layout of the slave CPU PCB is shown in figure 5.22, 5.23, 5.24. Figure 5.22 Layout of UV-2800, UV-2802(S) Slave CPU PCB Figure 5.23 Layout of UV-3802 Slave CPU PCB - 55 -...
  • Page 61 Electronic System The sockets description of the slave CPU PCB of UV-2800, UV-2802(S), UV-3802 as follow: J1---From Main CPU PCB Pin 1: Reset W78E52B Pin 2: Receive signal from W77E58 on Main CPU PCB Pin 3: Transfer signal to W77E58 on Main CPU PCB Pin 4: Pin 5: DC +5V...
  • Page 62 Electronic System Pin 4: Pin 5: DC +5V J2-- To Slave Amplifier PCB Pin 1,2,3,5,7,9,11,13: Pin 4: Analog signal from pin 6 of OP07 Pin 6,8,10,12,14: Control amplifier multiple Slave Amplifier PCB J3--- To Amplifier PCB Pin 1,2,3,5,7,9,11,13,15: GND Pin 4: Analog signal from pin 6 of OP07 Pin 6,8,10,12,14,16: Control...

  • Page 63: Trouble Shooting

    Trouble Shooting 6. Trouble Shooting 6.1 Tungsten lamp off - 58 -...

  • Page 64: Deuterium Lamp Off

    Trouble Shooting 6.2 Deuterium lamp off Deuterium lamp off 1.Solving the wiring from J7 DC +49V on pin 2,3 of J7 on PCB to deuterium lamp SST8.411.128A OK? 2.Replace deuterium lamp DC +0.7V between pin 2,3(B,E) and DC +43V between pin 1,3(CE) of J6 on PCB SST8.411.128A OK? 1.Solving the wiring from J6 DC +46V on pin 1 of J6 on...

  • Page 65: Memory Check Failed

    Trouble Shooting 6.3 Memory check failed 6.4 Printer check failed Note： It is recommended to connect the M501 to printer with cable after both are powered on! - 60 -...

  • Page 66: Filter Positioning Failed

    Trouble Shooting 6.5 Filter check failed Filter positioning failed DC +12V on pin 5 of J5 on Filter motor works OK? PCB SST8.414.103(104) DC +1.2V on pin 3 of J9 on PCB 1. Solving the wiring of filter SST8.414.103(104) OK? motor 2.

  • Page 67: Light Source Positioning Failed

    Trouble Shooting 6.6 Light source check failed Light Source positioning failed DC +12V on pin 5 of J4 on Light change motor works OK? PCB SST8.414.103(104) DC +5V on pin 3 of J12 on PCB 1. Solving the wiring of light SST8.414.103(104) OK? change motor 2.
  • Page 68 Trouble Shooting 6.7 Auto-cell check failed Auto-cell holder positioning failed DC +12V on pin 1 of CZ1 on Auto-cell holder motor works OK? PCB SST8.412.113 OK? The voltage level on pin 2 of J8 on 1. Solving the wiring from PCB SST8.412.113 changes within auto-cell holder to auto-cell 0—...
  • Page 69 Trouble Shooting 6.8 Slit check failed(Only for UV-2802S, UV-2802PCS) - 64 -...

  • Page 70: Search 656.1Nm Failed

    Trouble Shooting 6.9 Search 656.1nm failed(“D2 Energy too low” display on top side of right hand corner of the screen after finishing “Reset WL” ) Search 656.1nm failed Anything block off the beam in Take it away the sample compartment? Deuterium lamp on? Refer 6.2 Light Source positioning OK?

  • Page 71: Please Restart" Warning

    Trouble Shooting 6.10 “Please restart” warning “ Please restart” display on top right corner on LCD screen The slice on the screw thread pole stay in the photo-coupler? 1. Solving the wiring of J14 on PCB SST8.414.103(104). 1. Solving the wiring of limit 2.

  • Page 72: Get Dark Current For A Long Time

    Trouble Shooting 6.13 Get dark current for a long time - 67 -...

  • Page 73: No Backlight On Lcd Display

    Trouble Shooting 6.14 No backlight of LCD Display Turn on, LCD display have no backlight AC 110V or 220V Power on? Power on Power cord connect OK? Connect power cord Fuse OK? Replace fuse Solving wiring from power AC 110V/220V input of Switch socket to the switch Power OK? power...
  • Page 74 Trouble Shooting 6.15 Backlight OK, but display nothing on LCD Display - 69 -...

  • Page 75: Energy Low" Warning After Blanking

    Trouble Shooting 6.16 “Energy low” warning after blanking Note: If measuring at less than 200nm or more than 1000nm,it is possible to appear “Energy low” warning! - 70 -...

  • Page 76: Energy Too Low" Warning

    Trouble Shooting 6.17 “Energy too low” warning Energy too low Anything block off the beam in Take it away the sample compartment? Used quartz The wavelength at UV area? cuvette? The reference or sample Replace cuvette solution have high absorbency against air? The reference or sample Dilute reference or sample...

  • Page 77: No Dc +12V On Pcb Sst8.412.113

    Trouble Shooting 6.18 No DC +12V on PCB SST8.412.113 - 72 -...

  • Page 78: Maintenance

    Maintenance 7. Maintenance 7.1 Working Environment Placed the instrument on a clean non-vibrational table, the optimum environment as follow: the temperature is between 5℃ to 35℃, the humidity is no more than 85%, avoid direct strong light and air flow, the voltage stability is greater than ±10% and the frequency stability is greater than ±1% of the power supply, no strong magnetic field near the instrument.
  • Page 79 Maintenance Figure 7. 1 Remove the cover screws Very carefully remove the cover of the instrument and place in right side of the instrument. Show in Figure 7.2. Figure 7. 2 Remove the cover - 74 -...
  • Page 80 Maintenance HINT: If it is necessary to remove the cover from the right side of the instrument, carefully remove 3 connectors (CZ6, CZ4 and J3) on PCB marked SST8.417.100 . Be sure to reconnect after replacing the lamp! Show in Figure 7.3. Figure 7.3 Unplug J3, CZ4, CZ6 Remove the grey metal protection cover.
  • Page 81 Maintenance Figure 7.4 Remove the Lamp Cover Remove the lamp from the ceramic base. Insert the new lamp (Figure 7.5), pushing it in as far as it will go. Figure 7.5 Tungsten Lamp Re-fit the grey metal protection cover, temporarily re-fit the main cover and fix with two screws, one each side.

  • Page 82: Replace Deuterium Lamp

    Check the lamp alignment shown in Figure 7.6. If the image is not covering the slit, the lamp alignment needs adjustment. This requires running the SQ series without the covers, with high voltages accessible, and so should only be performed by a suitably qualified engineer.
  • Page 83 Shown in Figure 7.7. Figure 7.7 Take off the Deuterium Lamp Replace the pre-aligned lamp with a lamp (Figure 7.8) provided by UNICO or an authorized UNICO Service Provider. This comes pre-assembled with lamp socket.
  • Page 84 Maintenance Figure 7.8 Deuterium Lamp Reconnect the connector J7 to the PCB marked SST8.411.128. Re-fit the grey metal protection cover. Temporarily re-fit the main cover and fix with two screws, one each side. Switch on and remove the grommet from the middle of the rear panel. You can now look through the Viewing Hole and view the image of the lamp on the slit.

  • Page 85: Replace Memory Battery

    Maintenance Focus on the slit Figure 7.9 Adjust Deuterium Lamp 7.4 Replace Memory Battery Turn the spectrophotometer upside down onto a padded surface. Remove the all screws around the sides of the spectrophotometer shown in Figure 7.10 and take away the bottom cover. Figure 7.

  • Page 86: Upgrade Firmware

    Maintenance There is a round lithium battery on the main CPU PCB. Shown in Figure 7.11where the red arrow is pointed. The battery model is CR1220 with 3V voltage from Panasonic. Figure 7. 11 Battery Position Note: Since the capacitor will only be able to maintain power for 5-6 minutes, we suggest you follow the procedure.
  • Page 87 UV2800.bin, another is serial.ini. Note: The original serial number of spectrophotometer is stored in serial.ini. Open the folder “Update” and double click on the icon “Flash- UNICO”. The “System updating program for UNICO” screen will appear. Shown in Figure 7.13. Figure 7. 13...
  • Page 88 1 – line 3 and is stored in serial.ini . shown in Figure 7.15. If you do not have the original serial number, please contact UNICO. Figure 7. 15 Upload SN 10. Click on the ellipse icon “flash” on the left to start.

  • Page 89: Check Performance

    Maintenance Figure 7. 16 Upgrading Note: Do not click on any icon during the process of upgrading. 11. After beeping three times, the software is upgraded successfully, turn off the spectrophotometer, and then change the switch on the base of spectrophotometer to the normal position.

  • Page 90: Check Stray Light

    Maintenance Prepare (Refer 7.6.1). Press 3 to select “WL Scan”, press “F1” to setup, set the parameter as follow, press “Enter” to finished setup. Scan from: 400 Scan to: 300 Scan Step: 0.1 Scan Speed: HI Ensure beam is clear. Press “0Abs” to scan blank. Insert holmium filter.

  • Page 91: Check Dark Current

    Maintenance 7.6.5 Check Dark Current Prepare (Refer 7.6.1). Press 7 to select Utility. Press “▲”, “Print”, to select diagnostic menu (Note: Sometimes this page has a bar at the top and only the serial number below, instead of the diagnostic menu.) Press 5 to select “Check Dark Current”...

  • Page 92: Appendix

    Appendix Appendix Order No. List of UV-2800 PART NUMBER DESCRIPTION OR PCB NO. SST8.411.128 SQ5-411-029 SST8.411.128A SST8.411.130 SQ5-411-030 SST8.411.130A SQ5-412-021 SST8.412.113 SST8.412.314 SQ5-412-022 SST8.412.314A SQ5-413-025 SST8.413.102 SQ5-414-012 SST8.414.103 SQ5-417-006 SST8.417.100 SQ5-415-007 SST8.417.101 SQ5-415-008 SST8.417.102 SQ6-491-317 Cooling Fan SQ6-491-314 Transistor1(W Lamp) SQ6-491-313 Transistor2(D2 Lamp) SQ0-001-001...

  • Page 93: Order No. List Of Uv-2802, Uv-2802Pc

    Appendix Order No. List of UV-2802, UV-2802PC PART NUMBER DESCRIPTION OR PCB NO. SST8.411.128 SQ5-411-029 SST8.411.128A SST8.411.130 SQ5-411-030 SST8.411.130A SQ5-412-021 SST8.412.113 SST8.412.314 SQ5-412-022 SST8.412.314A SQ5-413-025 SST8.413.102 SQ5-414-013 SST8.414.104 SQ5-417-006 SST8.417.100 SQ5-415-007 SST8.417.101 SST8.415.001-B SQ5-415-005 SST8.415.001-D SQ6-491-341 Cooling Fan SQ6-491-314 Transistor1(W Lamp) SQ6-491-313 Transistor2(D2 Lamp) SQ0-001-001...

  • Page 94: Order No. List Of Uv-2802S, Uv-2802Pcs

    Appendix Order No. List of UV-2802S, UV-2802PCS PART NUMBER DESCRIPTION OR PCB NO. SST8.411.128 SQ5-411-029 SST8.411.128A SST8.411.130 SQ5-411-030 SST8.411.130A SQ5-412-021 SST8.412.113 SST8.412.314 SQ5-412-022 SST8.412.314A SQ5-413-019 SST8.413.102 SQ5-414-014 SST8.414.104 SQ5-417-006 SST8.417.100 SQ5-415-007 SST8.417.101 SST8.415.001-B SQ5-415-005 SST8.415.001-D SQ6-491-341 Cooling Fan SQ6-491-314 Transistor1(W Lamp) SQ6-491-313 Transistor2(D2 Lamp) SQ0-001-001...

  • Page 95: Order No. List Of Uv-3802

    Appendix Order No. List of UV-3802 PART NUMBER DESCRIPTION OR PCB NO. SST8.411.128 SQ5-411-029 SST8.411.128A SST8.411.130 SQ5-411-030 SST8.411.130A SQ5-412-021 SST8.412.113 SST8.412.314 SQ5-412-023 SST8.412.314A SQ5-413-025 SST8.413.102 SST8.413.103 SQ5-413-020 SST8.413.103A SQ5-414-013 SST8.414.104 SQ5-417-006 SST8.417.100 SQ5-415-007 SST8.417.101 SST8.415.001-B SQ5-415-005 SST8.415.001-D SQ6-491-341 Cooling Fan SQ6-491-314 Transistor1(W Lamp) SQ6-491-313...

  • Page 96: Order No. List Of Uv-4802

    Appendix Order No. List of UV-4802 PART NUMBER DESCRIPTION OR PCB NO. SST8.411.128 SQ5-411-029 SST8.411.128A SST8.411.130 SQ5-411-030 SST8.411.130A SQ5-412-021 SST8.412.113 SST8.412.314 SQ5-412-025 SST8.412.314A SQ5-413-026 SST8.413.102(J2:16 pin) SQ5-413-021 SST8.413.102(J2:14 pin) SQ5-414-013 SST8.414.104 SQ5-417-006 SST8.417.100 SQ5-415-007 SST8.417.101 SST8.415.001-B SQ5-415-005 SST8.415.001-D SQ6-491-341 Cooling Fan SQ6-491-314 Transistor1(W Lamp) SQ6-491-313...

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