GRAPHTEC midi LOGGER GL350 Service Manual
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GRAPHTEC midi LOGGER GL350 Service Manual

GRAPHTEC midi LOGGER GL350 Service Manual

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midi LOGGER
450/400/350
GL400-UM-251
SERVICE MANUAL
GL400-UM-251-08-9370

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Summary of Contents for GRAPHTEC midi LOGGER GL350

  • Page 1 midi LOGGER 450/400/350 GL400-UM-251 SERVICE MANUAL GL400-UM-251-08-9370...
  • Page 3 HISTORY OF REVISIONS No. Date issued Description of revision Page Edition 04.06.01 First Printing 04.08.10 Quantity of the LCD and the inverter corrected. 04.10.15 Part number for the input terminal units added. 04.10.15 50-Ch terminal unit information added 4-5,4-7,5-2,5-7,5-8 04.10.22 Some page couldn't open.
  • Page 4 TO ENSURE SAFETY This Service Manual has been compiled for the purpose of facilitating repair and maintenance of the GL450/400/350 midi LOGGER by Graphtec service personnel and other persons who have undergone equivalent technical training. Maintenance or repair by unauthorized service personnel is to be strictly avoided. Because the...

  • Page 5: Table Of Contents

    CONTENTS 1. CONFIGURATION .................. 1-1 1.1 Model Configuration ....................1-1 1.2 Accessories and Options ................... 1-1 2. UPGRADING THE FIRMWARE ............. 2-1 2.1 How to Upgrade the GL450/400/350 Flash ROM from the PCMCIA Card ....2-1 2.2 How to Upgrade the GL400/350 Flash ROM from the TCP/IP Port ......2-2 3.
  • Page 6 GL400-UM-251-9370...

  • Page 7: Configuration

    1. CONFIGURATION 1. CONFIGURATION 1.1 Model Configuration GL450 : 10-channel model with color monitor and internal memory (Replaced model from the GL400/350) GL400 : 10-channel model with color monitor and internal memory GL350 : 10-channel model with internal memory 1.2 Accessories and Options GL400/350 Model Unit name...
  • Page 8 1. CONFIGURATION GL400-UM-251-9370...

  • Page 9: Upgrading The Firmware

    2. UPGRADING THE FIRMWARE 2. UPGRADING THE FIRMWARE The version of your GL450/400/350’s firmware can be upgraded by rewriting the flash ROM on the pertinent circuit boards using a choice of methods. You can upgrade the firmware by loading the update program from either a personal computer via the TCP/IP port or from a PCMCIA card.

  • Page 10: How To Upgrade The Gl400/350 Flash Rom From The Tcp/Ip Port

    2. UPGRADING THE FIRMWARE 2.2 How to Upgrade the GL400/350 Flash ROM from the TCP/IP Port Preparations for the upgrade (1) Connect the AC adapter for the GL450/400/350. (2) Connect the LAN cable for the GL450/400/350 and PC. (If you connect P to P, use a cross LAN cable. If you connect with a hub, use a parallel LAN Cable.) How to upgrade :Windows 2000/XP...
  • Page 11 2. UPGRADING THE FIRMWARE (5) Click the Open File icon to show the menu as below. Open File Icon (6) Select the main update file as ”Mxxxa001.G40. (7) Click the Open Button. GL400-UM-251-9370...
  • Page 12 2. UPGRADING THE FIRMWARE (8) If you need to change the TCP/IP settings, click the transmission icon to set up the TCP/IP conditions. Transmission Icon The default settings for the GL450/400/350 are set as follows. IP Address: 192.168.0.1 Subnet mask: 255.255.255.0 Port number: 8023 If you haven’t changed them, use these settings.
  • Page 13 2. UPGRADING THE FIRMWARE GL400-UM-251-9370...

  • Page 14: Disassembly And Reassembly

    3. DISASSEMBLY AND REASSEMBLY 3. DISASSEMBLY AND REASSEMBLY 3.1 Notes on Disassembly and Reassembly • During disassembly, disconnect the cables from the specified connectors as necessary. • During reassembly, double-check to ensure that the proper cables have been correctly re-connected to the pertinent connectors.
  • Page 15 3. DISASSEMBLY AND REASSEMBLY Mounting the Input Terminal Unit (1) Remove the cover from the input terminal mounting area. (2) As shown in the figure below, insert the input terminal unit in the GL450/400/350. At this time, be sure to check that the terminal unit is locked onto the connector.

  • Page 16: Replacing The Main Board

    3. DISASSEMBLY AND REASSEMBLY 3.3 Replacing the Main Board Disassembly (1) Remove the input terminal unit from the GL450/400/350 (See Section 3.2.). (2) Remove the M3L30 binding head screw and the four M3L10 self tapping screws from the bottom cover. (3) Release the top cover hook from the bottom case, and then remove the top cover assembly (GL450/400) or the top cover (GL350).
  • Page 17 3. DISASSEMBLY AND REASSEMBLY GL350 Top cover Hook Bottom case assembly M3L30 binding head screw M3L10 self tapping screw GL400-UM-251-9370...
  • Page 18 3. DISASSEMBLY AND REASSEMBLY (5) Remove the four M2.6L6 binding head screws holding the main board and the remove the main board from the bottom case assembly. M2.6L6 binding head screw Spacer for GL350 Main board Insert this side first when installing the main board to the bottom case assembly.

  • Page 19: Replacing The Amp Board

    3. DISASSEMBLY AND REASSEMBLY 3.4 Replacing the AMP Board Disassembly (1) Remove the input terminal unit from the GL450/400/350 (See Section 3.2.). (2) Remove the main board from the bottom case (See Section 3.3.). (3) Remove the four M2.6L6 binding head screws holding the AMP shield plate and the AMP board, and then detach the AMP board from the bottom case assembly.
  • Page 20 3. DISASSEMBLY AND REASSEMBLY Re-assembly (1) Fit the AMP sheet edge to the AMP board edge as shown below and install it to the bottom case assembly. M2.6L6 bindimg AMP board head screw AMP shield plate AMP sheet Fit the AMP sheet edge to the AMP board edge at these locations.
  • Page 21 3. DISASSEMBLY AND REASSEMBLY (3) Install the AMP shield plate, and then tighten the bottom two M2.6 binding head screws as shown below. Bottom M2.6 binding head screw AMP shield plate (4) Re-assemble the other parts in the reverse order in which they were disassembled. (5) Set up the GL450/400/350 when you replace any of the boards.

  • Page 22: Replacing The Lcd (Gl450/400 Only)

    3. DISASSEMBLY AND REASSEMBLY 3.5 Replacing the LCD (GL450/400 only) Disassembly (1) Remove the input terminal unit from the GL450/400 (See Section 3.2.). (2) Disconnect the LCD flexible cable from the control panel board. Top cover assembly LCD flexible cable Control panel board (3) Remove the one M2.6 binding head screw holding the LCD unit, and then detach the LCD unit.
  • Page 23 3. DISASSEMBLY AND REASSEMBLY Re-assembly (1) Re-assemble the LCD unit in the reverse order in which it was disassembled. GL400-UM-251-9370 3-10...

  • Page 24: Setup Procedures

    4. SETUP PROCEDURES 4. SETUP PROCEDURES Note: You need the GL400 top cover assembly as a setup jig for the GL350 when you set up the GL350. 4.1 Entering the System Setup Menu (1) Press the [MENU] key, and then press the [Right Direction] key until the “INFO” menu shown below appears.

  • Page 25: Setting Up Setup1 (Voltage Input)

    4. SETUP PROCEDURES 4.2 Setting Up Setup1 (Voltage Input) This procedure is required when any part of the AMP board is replaced Preparation • Have a voltage generator on hand that can output voltage up to 50 VDC (four-digit output). •...
  • Page 26 4. SETUP PROCEDURES (3) After entering the System Setup mode, open the Setup menu as shown below. Specify the AMP Setup conditions as shown below. Mode :Setup1 (Basic) Slot :Slot1 :CH 1 (4) Move the cursor to the “Execute Setup” position as shown above. (5) Press the [ENTER] key to start the Setup1 (Basic) operation.
  • Page 27 4. SETUP PROCEDURES (8) Press the [START] key and then wait until the "20 mV : [START]" message appears. Specify the voltage generator's output voltage setting to correspond to one of the displayed voltage ranges in the following table, and then input that voltage to the GL450/400/350. Message Input Voltage 0.000 mV...

  • Page 28: Setup2 (Room Temperature Compensation)

    4. SETUP PROCEDURES 4.3 Setup2 (Room Temperature Compensation) Preparation As shown below, use (T) temperature compensation leads to connect the target amps to the 0˚C reference temperature device (Zero controller). Also be sure to use (T) temperature compensation leads to connect the input terminal.
  • Page 29 4. SETUP PROCEDURES (3) After entering the System Setup mode, open the Setup menu as shown below. Specify the AMP Setup conditions as shown below. Mode :Setup2 (Room temp.) Slot :Slot1 Temperature Sensor :Sensor1 Area :Area1 :CH 3 (4) Move the cursor to the “Execute Setup” position as shown above. (5) Press the [ENTER] key to start the Setup2 (Room temp.) operation.
  • Page 30 4. SETUP PROCEDURES (10) Re-open the Setup menu as shown below. Specify the AMP Setup conditions as shown below. Mode :Setup2 (Room temp.) Slot :Slot1 Temperature Sensor :Sensor1 Area :Area2 :CH 3 (11) Repeat steps (4) to (8) for Area2 of Sensor1. (12) If you have the 20-channel input terminal unit, repeat steps (4) to (8) for Sensor2.

  • Page 31: Setting Up Setup3 (Rtd Temp.)

    4. SETUP PROCEDURES 4.4 Setting Up Setup3 (RTD Temp.) Preparation As shown below, use a resistor box. Wiring connection Connect one of the resistor terminals and GND for the 0- ohm setting. Resistor Box Connect both of the resistor Connect to +, -, and b terminals of CH2. terminals for the 350-ohm setting and then set the resistor to 350-ohm.
  • Page 32 4. SETUP PROCEDURES Setup procedure (1) Connect the resistor box and the GL450/400/350 for the 0-ohm setting as shown above. (2) Leave the GL450/400/350 turned on for at least minutes. (3) After entering the System Setup mode, open the Setup menu as shown below. Specify the AMP Setup conditions as shown below.
  • Page 33 4. SETUP PROCEDURES (10) Specify the resistor box's setting to 350 ohm. (11) Press the [START] key. (12) When you have finished the 350-ohm Setup operation, the "EEPROM : [ENTER]" message appears. Press the [ENTER] key to begin writing the new Setup data to the EEPROM. (13) After the setup parameters have been registered to the EEPROM, the display closes and returns to normal mode.

  • Page 34: Inspection And Check Procedures

    5. INSPECTION AND CHECK PROCEDURES 5. INSPECTION AND CHECK PROCEDURES Note: You need the GL400 top cover assembly as a setup jig for the GL350 when you inspect the GL350. 5.1 Insulation Resistance Use a megohm meter (an insulation resistance gauge) to check that the insulation resistance between the following terminals is equal to or higher than the rated value.

  • Page 35: Inspection And Check Methods

    5. INSPECTION AND CHECK PROCEDURES 5.2 Inspection and Check Methods Preparations for inspections and checks Condition settings files :CondVolt.CND ← Condition settings for measurement accuracy :CondT.CND ← Condition settings for the T range accuracy (for the 10-Ch and 20-Ch terminal unit) :CondT50-1.CND ←...
  • Page 36 5. INSPECTION AND CHECK PROCEDURES (3) Press the [ENTER] key to display the menu below. (4) Specify the condition settings file to execute the various inspection operations. (5) Move the cursor to the “Execute” position using the [Direction] keys. (6) Press the [ENTER] key to load the condition settings file. GL400-UM-251-9370...

  • Page 37: Measurement Accuracy

    5. INSPECTION AND CHECK PROCEDURES 5.2.1 Measurement Accuracy Supply the reference voltage or frequency determined for each measurement range, and then check the voltage accuracy. Preparation • Use a voltage generator that can output up to 50 VDC (using four-digit settings). •...
  • Page 38 5. INSPECTION AND CHECK PROCEDURES (4) Press the [DISPLAY] key until the menu shown below appears. (5) Input the reference voltage for each range according to the table below, and then check that the level of measurement is within the rating. Voltage precision ratings Range Input voltage...
  • Page 39 5. INSPECTION AND CHECK PROCEDURES (7) Wait until the "Finished" message is displayed, and then display the values as shown below. Message Confirm that this value is within the above ratings after data has been captured. The data with an automatically generated file name is captured to the PCMCIA card (8) Repeat steps (1) to (7), and then confirm that each value is within the above ratings.

  • Page 40: Temperature Accuracy

    5. INSPECTION AND CHECK PROCEDURES 5.2.2 Temperature Accuracy Preparation • Use (T) temperature compensation leads to connect the target amp and a 0˚C reference temperature device (zero controller) as shown below. • As shown below, use copper leads to connect the 0˚C reference temperature device (zero controller) to a voltage generator that can specify output up to 1µV.
  • Page 41 5. INSPECTION AND CHECK PROCEDURES Setting procedure (1) Load the condition settings files from the PCMCIA card. Condition settings files :CondT.CND ← Condition settings for the T range accuracy (for the 10-Ch and 20-Ch terminal unit) :CondT50-1.CND ← Condition settings for the T range accuracy (for ch3, 8, ,13, 18, 23 of the 50-Ch terminal unit) :CondT50-2.CND ←...

  • Page 42: Rtd Accuracy

    5. INSPECTION AND CHECK PROCEDURES 5.2.3 RTD Accuracy Preparation As shown below, use leads to connect the target amps to the resistor box. Wiring connection Resistor Box Connect to +, -, and b terminals of CH2. AC adapter Measurement procedure ( RTD accuracy) (1) Load the condition settings file CondRTD.CND as described above.

  • Page 43: Signal-To-Noise Ratio

    5. INSPECTION AND CHECK PROCEDURES -190 ˚C 22.8 ohm -189.4 ˚C to -190.6 ˚C 5.3 Signal-to-Noise Ratio Preparation Short the + and - terminals for channel 1. Setting Procedure (1) Load the condition settings file CondNoise.CND as described above. (2) Press the [DISPLAY] key until the menu shown below appears. (3) Press the [START] key to start data capture.

  • Page 44: Parts Lists

    6. PARTS LISTS 6. PARTS LISTS 6.1 Recommended Parts List Part No. Part Name Description Q'ty Remarks GL400/350 790435700 Main Control Board for GL400/350 GL450 790445700 Main Control Board for GL450 770435103 AMP Board GL400/350 795350310 10-ch Input Terminal Unit 10SU 1 or 2 GL400/350...

  • Page 45: Parts Lists

    Q'ty Remarks 604400011 Rubber Grip GL400 604350950 Emblem Plate "GRAPHTEC" EFBL-40 GL450 604450040 Emblem Plate 450 "GRAPHTEC" EFBL-40-GL450 GL400 604400020 Top Cover for GL400 Case top, LCD GL450 604450060 Top Cover for GL450 Case top 450, LCD Top Cover, GL450/400...

  • Page 46: Lcd & Key Panel, Gl450/400

    6. PARTS LISTS 6.2.2 LCD & Key Panel, GL450/400 Part No. Part Name Description Q'ty Remarks GL400 604400020 Top Cover for GL400 Case top, LCD GL450 604450060 Top Cover for GL450 Case top 450, LCD 604400004 Key Switch GL400 770435105 Control Panel Board GL450 795401701 Control Panel Board 450 500052301 LCD...

  • Page 47: Top Cover, Reverse Side, Gl450/400

    6. PARTS LISTS 6.2.3 Top Cover, Reverse Side, GL450/400 Part No. Part Name Description Q'ty Remarks 690440031 Cable, GL400-03 690440040 Cable, GL400-04 500052325 Inverter, CXA-K0505-VJL 690440020 Flexible Cable, GL400-02 604400070 Inverter Insulating Sheet 604400060 LCD Insulating Sheet Top Cover, Reverse Side, GL450/400 GL400-UM-251-9370...

  • Page 48: Top Cover, Gl350

    6. PARTS LISTS 6.2.4 Top Cover, GL350 Part No. Part Name Description Q'ty Remarks 604350950 Emblem Plate "GRAPHTEC" EFBL-40 604350040 Top Cover for GL350 Case top, normal Top Cover, GL350 GL400-UM-251-9370...

  • Page 49: Main Frame

    6. PARTS LISTS 6.2.5 Main Frame Part No. Part Name Description Q'ty Remarks 604350060 Bottom Case GL400/350 604450030 Bottom Case 450 GL450 Battery Connector 604350211 Spring Hold-down Plate 604250090 Screwdriver Spring 604350180 AMP Sheet 604400090 Rear Lift-up Hook for GL400 GL450/400 604350280 Rear Lift-up Hook for GL350 GL350...

  • Page 50: Bottom Case

    6. PARTS LISTS 6.2.6 Bottom Case Part No. Part Name Description Q'ty Remarks GL400/350 604350010 Battery Cover GL450 604450020 Battery Cover 450 305820001 Screwdriver NDV-4 Japanese only 613262360 Informatiom Label Japanese model only 054025740 Serial Number Label 604350060 Bottom Case GL400/350 795350310 Input Terminal Unit 10SU...

  • Page 51: 10-Ch Input Terminal Unit

    6. PARTS LISTS 6.2.7 10-CH Input Terminal Unit Part No. Part Name Description Q'ty Remarks 393020060 Spacer ASB-2006 10SU 604350850 TM Bottom Label 10TU 604450130 TM Bottom Label 450 604350860 CAT Label 054025740 Serial Number Label 770435108 Input Terminal Board 770435109 Input Terminal Relay Board 10SU...

  • Page 52: 20-Ch Input Terminal Unit

    6. PARTS LISTS 6.2.8 20-CH Input Terminal Unit Part No. Part Name Description Q'ty Remarks 770435113 20-CH Input Terminal Relay Board 770435112 20-CH Input Terminal Board 393020060 Spacer ASB-2006 604350860 CAT Label 604350240 20-CH Insulating Sheet 054025740 Serial Number Label 20SU 604350030 Input Terminal Bottom Cover...

  • Page 53: Block Diagram

    7. BLOCK DIAGRAM 7. Block Diagram 7.2 Block Diagram Flash Emulator GL400-UM-251-9370...

  • Page 54: Wirring Diagram

    7. BLOCK DIAGRAM 7.2 Wirring Diagram Main unit power block & main control block (No.1) GL400-UM-251-9370...
  • Page 55 7. BLOCK DIAGRAM Main control block (No.2) GL400-UM-251-9370...
  • Page 56 7. BLOCK DIAGRAM Main unit 10ch AMP block GL400-UM-251-9370...
  • Page 57 7. BLOCK DIAGRAM Main unit 20ch AMP block GL400-UM-251-9370...
  • Page 58 7. BLOCK DIAGRAM Details of AMP block GL400-UM-251-9370...

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