midi LOGGER 820 GL820-UM-251

Transcription

1 midi LOGGER 820 GL820-UM-251 SERVICE MANUAL GL820-UM

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3 HISTORY OF REVISIONS No. Date issued Description of revision Page Edition First Printing All The size of screws were corrected. 3-5, GL820-UM i

4 TO ENSURE SAFETY This Service Manual has been compiled for the purpose of facilitating repair and maintenance of the GL820 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 GL820 contains numerous internal components with a high electric potential, such work by unauthorized service personnel could cause human injury or serious damage to the GL820 midi LOGGER. GL820-UM ii

5 CONTENTS 1. CONFIGURATION Model Configuration Accessories and Options UPGRADING THE FIRMWARE Note for the firmware upgrading How to Upgrade the GL820 Flash ROM from the USB memory device DISASSEMBLY AND REASSEMBLY Notes on Disassembly and Reassembly Removing the Input Terminal Unit Removing the Side Pads Disassembling the Top Cover and the Bottom Case Assembly Replacing the Main Control Board Replacing the Control Panel Board Replacing the LCD and the Top cover Replacing the AMP Board SETUP PROCEDURES Entering the System Setup Menu AC Line cycle Setting Performing Setup1 (Voltage Input) Performing Setup2 (Room Temperature Compensation) Performing Setup3 (RTD) INSPECTION AND CHECK PROCEDURES Preparations for inspections AC Line Setting Sampling setting Copy the condition settings file How to load the condition settings file to the GL820 from a USB memory device Voltage Measurement Accuracy Temperature Accuracy RTD Accuracy PARTS LISTS Recommended Parts List Parts Lists Outer Casing Bottom Parts Top Parts Bottom Case Terminal Unit Standard Accessories GL820-UM iii

6 7. Block Diagram Main Unit Power Block & Main Control Main Control Block AMP Block Details of the AMP...7-4

7 1. CONFIGURATION 1. CONFIGURATION 1.1 Model Configuration GL820 : 20-channel model with color monitor and internal memory 1.2 Accessories and Options Unit name Model name Description Logic / Alarm cable B-513 DC Drive Cable B-514 Same as GL200/450/500 Battery Pack B-517 Same as GL200/450/500 Humidity Sensor B-530 Same as GL200/450/500 Extended Terminal Base Unit B-537 Option 20 Ch Extended Terminal Unit B-538 Option Rod-shaped K-type thermocouple RIC-410 K-type thermocouple for static surfaces RIC-420 L-shaped K-type thermocouple for static surfaces RIC-430 GL820-UM

8 GL820-UM CONFIGURATION

9 2. UPGRADING THE FIRMWARE The version of your GL820 s firmware can be upgraded by rewriting the flash ROM on the pertinent circuit boards. You can upgrade the firmware by loading the update program to a USB memory device. 2.1 Note for the firmware upgrading Save the measuring condition to the internal memory or the USB memory before the firmware upgrade. Don't turn off the power during upgrading the firmware. 2.2 How to Upgrade the GL820 Flash ROM from the USB memory device Preparations for the upgrade Firmware :MainVerxxxRevxxxxAxx.GL820 Main Program file for GL820 :PatternVerxxxRevxxxxAxx.GL820 Font file for GL820 (1) Connect the AC adapter for the GL820. (2) Turn on the GL820. (3) Copy the two files to a USB memory device from the computer. (Copy the two main program files to root directory of a USB memory. Do not copy them to any folder.) How to upgrade (1) Insert the USB memory device containing the main upgrade program into the GL800's USB port. GL820-UM

10 2. UPGRADING THE FIRMWARE (2) Turn on the GL820 to display the menu below. And then select the upgrade program file by using the [UP Arrow] direction key or the [Down Arrow] direction key. (3) Press [ENTER] key to execute the upgrade. (4) Wait until the display shown below appears or until the beeper sound stops. Note: Don't turn off the GL820 until this process is finished. The following message will appear on the GL820 display in yellow characters when the upgrade is complete. Also the beeper will sound for 5 seconds. Please Turn Off the Power. I have locked up. GL820-UM

11 (5) Turn off the power to the GL820 when the above message is displayed or when the beeper sound stops. (6) Delete the two program files from a USB memory device. This is to avoid upgrading the firmware by mistake. GL820-UM

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13 3. DISASSEMBLY AND REASSEMBLY 3.1 Notes on Disassembly and Reassembly 3. 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. Some areas of the control panel unit possess a high electrical potential, so exercise caution to avoid an electrical shock. GL820-UM

14 3. DISASSEMBLY AND REASSEMBLY 3.2 Removing the Input Terminal Unit Disassembly (1) Remove the input terminal unit as shown in the picture below. Pull the terminal unit out towards the direction indicated by the arrow while pressing the two locks at the bottom of the unit. (1) Press the two locks in the direction indicated by arrows. (2) Pull the unit out towards the direction indicated by the arrow. GL820-UM

15 3. DISASSEMBLY AND REASSEMBLY 3.3 Removing the Side Pads Disassembly (1) Peel off the left and right side pads from the main unit. Right side pad Left side pad Main unit Re-assembly (1) Push the left and right side pads against the main unit and then install them on the main unit. GL820-UM

16 3. DISASSEMBLY AND REASSEMBLY 3.4 Disassembling the Top Cover and the Bottom Case Assembly Disassembly (1) Remove the input terminal unit from the main unit (See Section 3.3). (2) Remove the side pads from the main unit (See Section 3.4). (3) Remove the four M2L8 self-tapping screws from the bottom cover. (4) Disconnect the connector between the main control board and the AMP board and then remove the top cover assembly. Top cover assembly Bottom case assembly M2L8 self-tapping screw Re-assembly (1) Re-assemble the top cover assembly and the bottom case assembly in the reverse order in which they were disassembled. GL820-UM

17 3. DISASSEMBLY AND REASSEMBLY 3.5 Replacing the Main Control Board Disassembly (1) Remove the input terminal unit from the main unit (See Section 3.2). (2) Remove the side pads from the main unit (See Section 3.3). (3) Disassemble the top cover assembly and the bottom case assembly (See Section 3.4). (4) Disconnect the LCD flexible cable from the main control board. (5) Remove the two M2L6 self-tapping screws holding the main control board from the top cover assembly. (6) Disconnect the connector between the main control board and the control panel board and then remove the top cover assembly. Fixing tape M2L6 self-tapping screw Core Main control board LED flexible cable Top cover assembly Re-assembly (1) Re-assemble the main control board in the reverse order in which it was disassembled. GL820-UM

18 3. DISASSEMBLY AND REASSEMBLY 3.6 Replacing the Control Panel Board Disassembly (1) Remove the input terminal unit from the main unit (See Section 3.2). (2) Remove the side pads from the main unit (See Section 3.3). (3) Disassemble the top cover assembly and the bottom case assembly (See Section 3.4). (3) Remove the main control board (See Section 3.5). (4) Remove the two M2L6 self-tapping screws holding the LCD bracket, and then detach the LCD bracket. (5) Remove the four M2L6 self-tapping screws holding the control panel board. (6) Remove the control panel board from the top cover assembly. M2L6 self-tapping screw M2L6 self-tapping screw LCD bracket Control panel board Top cover assembly Re-assembly (1) Re-assemble the control panel board in the reverse order in which it was disassembled. GL820-UM

19 3. DISASSEMBLY AND REASSEMBLY 3.7 Replacing the LCD and the Top cover The LCD is supplied together with the top cover assembly. This is avoiding to get the dust between the LCD and the top cover panel. Disassembly (1) Remove the input terminal unit from the main unit (See Section 3.2). (2) Remove the side pads from the main unit (See Section 3.3). (3) Disassemble the top cover assembly and the bottom case assembly (See Section 3.4). (3) Remove the main control board (See Section 3.5). (4) Remove the key pad from the top cover assembly. LCD bracket Control panel board Key pad Top cover assembly with LCD Re-assembly (1) Re-assemble the LCD and the top cover assembly in the reverse order in which it was disassembled. GL820-UM

20 3. DISASSEMBLY AND REASSEMBLY 3.8 Replacing the AMP Board Disassembly (1) Remove the input terminal unit from the main unit (See Section 3.2). (2) Remove the side pads from the main unit (See Section 3.3). (3) Disassemble the top cover assembly and the bottom case assembly (See Section 3.4). (4) Remove the four M2L6 self-tapping screws holding the AMP board from the bottom case assembly. (5) Detach the AMP board from the bottom case assembly. (6) Remove the two M2.6L6 binding head screws holding the terminal unit connector cover. (7) Detach the terminal unit connector cover from the AMP board. M2L6 self-tapping screw AMP board M2.6L6 binding head screw Terminal unit connector cover Bottom case assembly Re-assembly (1) Re-assemble the AMP board in the reverse order in which it was disassembled. (2) Perform the Setup operations for the GL820 when you replace the AMP board. GL820-UM

21 4. SETUP PROCEDURES 4. SETUP PROCEDURES 4.1 Entering the System Setup Menu (1) Press the [MENU] key until the OTHR menu shown below appears. (2) Press the [LEFT DOUBLE ARROW Direction] key 10 times in order to display the Setup menu shown below. (3) Move the cursor to the Mode position using the [Direction] keys. (4) Press the [ENTER] key to display the menu from which you can execute the various Setup operations. Setup mode Setup1 (Basic) Setup2 (Room temp.) Setup3 (RTD temp.) (5) Select the Setup mode using the [Direction] keys, and then press the [ENTER] key. GL820-UM

22 4. SETUP PROCEDURES (6) Move the cursor to the Execute Setup position as shown below. (7) Press the [ENTER] key to start the selected Setup operation. GL820-UM

23 4. SETUP PROCEDURES 4.2 AC Line cycle Setting You must set the AC Line cycle setting of the GL820 to the same cycle as that of your AC line before you perform the Setup operations. How to set the AC line cycle (1) Press the [MENU] key until the "OTHR" menu shown below appears. (2) Move the cursor to the "AC Line cycle" position using the [Direction] keys. (3) Press the [ENTER] key to display the "AC Line cycle" selection menu shown below. (4) Select the appropriate cycle for your AC line. GL820-UM

24 4. SETUP PROCEDURES 4.3 Performing 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). Mutually connect the ground terminals of the voltage generator and the GL820. Set the AC Line cycle setting of the GL820 to the same cycle as that of your AC line. Wiring connection Voltage generator V Connect both ends to GND FG Input cable GND AC adapter Connect to CH1 GL820-UM

25 4. SETUP PROCEDURES Setup procedure (1) As shown in the figure above, connect the output of the voltage generator to the GL820 s CH1 input terminal. (2) Leave the GL820 turned on for at least 30 minutes. And leave the GL820 turned on for at least 10 minutes after wiring. (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) CH :CH 1 (4) Move the cursor to the Execute Setup position as shown below. GL820-UM

26 4. SETUP PROCEDURES (5) Press the [ENTER] key to start the Setup1 (Basic) operation. Message (6) The GND : [START] message is displayed at the location shown above. (7) Input 0.000mV to the input terminals of channel 1. (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 GL820. Message Input Voltage GND mv 20 mv mv 50 mv mv 100 mv mv 200 mv mv 500 mv mv 1 V V 2 V V 5 V V 10 V V 20 V V 50 V V (9) Repeat step (8) by sequentially setting the Measure parameter to 50 mv, 100 mv, 200 mv, 500 mv, 1 V, 2 V, 5 V, 10 V, 20 V and 50 V, and then inputting the corresponding voltage. GL820-UM

27 4. SETUP PROCEDURES (10) When you have finished the Setup operation for 50 V, the "EEPROM : [ENTER]" message appears. Press the [ENTER] key to begin writing the new Setup data to the EEPROM. Message (11) After the setup parameters have been registered to the EEPROM, the display closes and returns to normal mode. (12) Turn off the GL820. This completes the voltage amp setup. GL820-UM

28 4. SETUP PROCEDURES 4.4 Performing Setup2 (Room Temperature Compensation) This procedure is required when any part of the relay board is replaced. Setup the Setup 1 when the amp board was replaced before performing this procedure. Preparation As shown below, use (T: ø0.32 mm, K: ø0.65 mm) temperature compensation leads to connect the input terminals to the 0 C reference temperature device (Zero controller). Set the AC Line cycle setting of the GL820 to the same cycle as that of your AC line. Wiring connection Input 0 V for the output side or short the + and - terminals (K) output side 0 C reference temperature device (Zero Controller) Connect the GND terminals. (K) input side (T) output side (K) compensation lead (T) input side (T) compensation lead AC adapter Connect (T) compensation lead to the CH1, CH6, CH11 and CH16 input terminals. Connect (K) compensation lead to the CH3, CH8, CH13 and CH17 input terminals. CAUTION Connect each compensation copper lead to a single terminal as shown in the above diagram (parallel wiring is not permitted). GL820-UM

29 4. SETUP PROCEDURES Setup procedure (1) As shown in the figure above, connect the inputs of the zero controller to the GL820 s input terminals. (2) Leave the GL820 turned on for at least 30 minutes. And leave the GL820 turned on for at least 10 minutes after wiring. (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.) Sensor :Sensor1 Area :Area1 CH :CH 1 (4) Move the cursor to the Execute Setup position as shown below. GL820-UM

30 4. SETUP PROCEDURES (5) Press the [ENTER] key to start the Setup2 (Room temp.) operation. Message (6) The rtemp : [START] message is displayed at the location shown above. (7) Press the [START] key and then wait until the "EEPROM : [ENTER]" message appears. Message (8) Press the [ENTER] key to begin writing the new Setup data to the EEPROM. (9) After the setup parameters have been registered to the EEPROM, the display closes and returns to normal mode. GL820-UM

31 4. SETUP PROCEDURES (10) Re-open the Setup menu as shown below. Specify the AMP Setup conditions as shown below. Mode :Setup2 (Room temp.) Sensor :Sensor1 Area :Area2 CH :CH 1 (11) Repeat steps (4) to (8) for all the areas up to Area 4. (12) Turn off the GL820. This completes the Room temp. setup. Setup flow for the Room temp. Procedure Selected area 1 Area 1 2 Area 2 3 Area 3 4 Area 4 GL820-UM

32 4. SETUP PROCEDURES 4.5 Performing Setup3 (RTD) Preparation Have reference resistors to setup RTD. Reference resistors: 0 Ω (Short), 350 Ω ±0.01%, 2500 Ω ±0.01% As shown below, use reference resistors to connect the CH20. Set the AC Line cycle setting of the GL820 to the same cycle as that of your AC line. Wiring connection Reference resistors: (1) 0 Ω (Short) (2) 350 Ω ±0.01% (3) 2500 Ω ±0.01% (b) (-) (+) Connect to the GND AC adapter Connect to the CH20 input terminals. GL820-UM

33 4. SETUP PROCEDURES Setup procedure (1) As shown in the figure above, connect the reference resistor to the GL820 s input terminals. (2) Leave the GL820 turned on for at least 30 minutes. And leave the GL820 turned on for at least 10 minutes after wiring. (3) After entering the System Setup mode, open the Setup menu as shown below. Specify the AMP Setup conditions as shown below. Mode :Setup3 (RTD temp.) CH :CH 20 (4) Move the cursor to the Execute Setup position as shown below. GL820-UM

34 4. SETUP PROCEDURES (5) Press the [ENTER] key to start the Setup3 (RTD temp.) operation. Message (6) The "0 ohm : [START]" message is displayed at the location shown above. (7) Connect the reference 0 Ω resistor to the input terminals of channel 20. (8) Press the [START] key and then wait until the "350 ohm : [START]" message appears. Replace the reference resistor to correspond to one of the displayed resistors in the following table and then press the [START] key. Message Reference resistor 0 ohm 0 Ω 350 ohm 350 Ω 2500 ohm 2500 Ω (9) Repeat step (8) by sequentially to 350 Ω and 2500 Ω. (10) The "EEPROM : [ENTER]" message appears when the 2500 ohm setup was completed. Message (11) Press the [ENTER] key to begin writing the new Setup data to the EEPROM. (12) After the setup parameters have been registered to the EEPROM, the display closes and returns to normal mode. GL820-UM

35 4. SETUP PROCEDURES (13) Turn off the GL820. This completes the RTD temp. setup. GL820-UM

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37 5. INSPECTION AND CHECK PROCEDURES 5. INSPECTION AND CHECK PROCEDURES 5.1 Preparations for inspections AC Line Setting (1) Set the AC Line cycle setting of the GL820 to the same cycle as that of your AC line (See Section 4.2) Sampling setting (1) Set the Sampling setting of the GL820 to at least 1 sec or longer Copy the condition settings file Condition settings files :GL820ConditionVolt.CND Condition settings for Voltage accuracy :GL820ConditionTC.CND Condition settings for T and K range accuracy :GL820ConditionPT.CND Condition settings for PT range accuracy (1) Copy the condition settings file to a USB memory device from the computer. GL820-UM

38 5. INSPECTION AND CHECK PROCEDURES How to load the condition settings file to the GL820 from a USB memory device (1) Connect the USB memory device to the GL820. (2) Press the [FILE] key to display the menu below. (3) Move the cursor to the Load position using the [Direction] keys. GL820-UM

39 5. INSPECTION AND CHECK PROCEDURES (4) Press the [ENTER] key to display the menu below. (5) Move the cursor to the File Name position using the [Direction] keys. (6) Press the [ENTER] key to display the menu shown below. (7) Move the cursor to the USB1 position using the [Direction] keys. GL820-UM

40 5. INSPECTION AND CHECK PROCEDURES (8) Press the [Left Arrow Direction] key to display files as shown below. (9) Specify the condition settings file to execute the various inspection operations by using the [DOWN Arrow Direction] key or the [UP Arrow Direction] key. (10) Press the [ENTER] key to display the menu shown below. GL820-UM

41 5. INSPECTION AND CHECK PROCEDURES (11) Move the cursor to the OK position using the [Direction] keys. (12) Press the [ENTER] key to display the menu below. (13) Move the cursor to the OK position using the [Direction] keys. (14) Press the [ENTER] key to load the condition settings file. GL820-UM

42 5. INSPECTION AND CHECK PROCEDURES 5.2 Voltage Measurement Accuracy Supply the reference voltage or frequency determined for each measurement range, and then check the voltage accuracy. Preparation Have a voltage generator on hand that can output voltage up to 50 VDC (using four-digit output). Mutually connect the ground terminals of the voltage generator and the GL820 prior to initiating measurement. Set the AC Line cycle setting of the GL820 to the same cycle as that of your AC line. Set the Sampling setting of the GL820 to at least 1 sec or longer. Wiring connection Same wiring connection as Setup1. (See Setup1 procedure) Setting procedure (1) Load the condition settings file "GL820ConditionVolt.CND" from the USB memory device. Measurement procedure (1) Press the [MENU] key to display the menu shown below. (2) Move the cursor to the Range position of channel 1. (3) Press the [ENTER] key to display the menu shown below, and then select the reference voltage range. GL820-UM

43 5. INSPECTION AND CHECK PROCEDURES (4) Press the [DISPLAY] key until the menu shown below appears. (5) Press the [Left DOUBLE Arrow] key to display the menu shown below. GL820-UM

44 5. INSPECTION AND CHECK PROCEDURES (6) 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 Factory Rating (±0.08%) Product Rating (±0.1%) 20 mv mv mv to mv mv to mv 50 mv mv mv to mv mv to mv 100 mv mv mv to mv mv to mv 200 mv mv mv to mv mv to mv 500 mv mv mv to mv mv to mv 1 V V V to V V to V 2 V V V to V V to V 5 V V V to V V to V 10 V V V to V V to V 20 V V V to V V to V 50 V V V to V V to V This value will change when the reference voltage is input from the voltage generator. (7) Press the [START/STOP] key when the input voltage stabilizes. (8) 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. (9) Repeat steps (1) to (8), and then confirm that each value is within the above ratings. GL820-UM

45 5. INSPECTION AND CHECK PROCEDURES 5.3 Temperature Accuracy Preparation Use (T) and (K) temperature compensation leads to connect a 0 C reference temperature device (zero controller) to the GL820 input terminals. Set the AC Line cycle setting of the GL820 to the same cycle as that of your AC line. Set the Sampling setting of the GL820 to at least 1 sec or longer. Wiring connection Same wiring connection as Setup2. (See Setup2 procedure) Setting procedure (1) Load the condition settings file GL820ConditionTC.CND from the USB memory device. Measurement procedure (temperature accuracy) (1) Short the input reference voltage signal for the 0 C reference temperature device (zero controller) according to the table below, then check that the level of measurement is within the rating. Input voltage precision ratings (Type T) Temperature Input voltage Factory Rating Product Rating 0 C mv -0.8 C to +0.8 C -1.0 C to +1.0 C Input voltage precision ratings (Type K) Temperature Input voltage Factory Rating Product Rating 0 C mv -1.0 C to +1.0 C -1.5 C to +1.5 C (2) Press the [DISPLAY] key until the menu shown below appears. GL820-UM

46 5. INSPECTION AND CHECK PROCEDURES (3) Press the [Left DOUBLE Arrow] key to display the menu shown below. (4) Press the [START/STOP] key to measure the temperature. (5) 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. (6) Check that the level of measurement is within the above rating from the CH1 to the CH10. (7) Press the [CH GROUP] key to display from the CH11 to the CH20. Confirm that this value is within the above ratings after data has been captured. GL820-UM

47 5. INSPECTION AND CHECK PROCEDURES 5.4 RTD Accuracy Preparation Have reference resistors to setup RTD. Reference resistors: 350 Ω ±0.01%, 2500 Ω ±0.01% As shown below, use reference resistors to connect the CH20. Set the AC Line cycle setting of the GL820 to the same cycle as that of your AC line. Wiring connection Same wiring connection as Setup3. (See Setup3 procedure) Setting procedure (1) Load the condition settings file GL820ConditionPT.CND from the USB memory device. Measurement procedure (RTD accuracy) (1) Connect the reference resistor to the input terminals of channel 20. (2) Press the [DISPLAY] key until the menu shown below appears. (3) Press the [Left DOUBLE Arrow] key to display the menu shown below. GL820-UM

48 5. INSPECTION AND CHECK PROCEDURES (4) Press the [CH GROUP] key to display from the CH11 to the CH20. (5) Press the [START/STOP] key to measure. (6) Wait until the "Finished" message is displayed, and then display the values as shown below. Message Confirm that this value is within the below ratings after data has been captured. (7) Check that the level of measurement is within below rating. RTD precision ratings Range Input resistor Reference Temperature Factory Rating Product Rating Pt Ω C C to C C to C Pt Ω C C to C C to C GL820-UM

49 6. PARTS LISTS 6. PARTS LISTS 6.1 Recommended Parts List No. Part No. Part Name Description Q'ty Remarks Main Control Board with SD card, GL AMP Board, GL Control Panel Board 1 Same as GL AC Adapter JP, with AC cable KSAH T1M2 1 Japan AC Adapter UL, with AC cable KSAH T1M2 1 UL AC Adapter CEE, with AC cable KSAH T1M2 1 CEE AC Adapter BS, with AC cable KSAH T1M2 1 BS AC Adapter CCC, with AC cable KSAH T1M2 1 China GL820-UM

50 6. PARTS LISTS 6.2 Parts Lists Outer Casing No. Part No. Part Name Description Q'ty Remarks Rank Top Cover with LCD 1 A Bottom Case 1 C Left Side Pad 1 C Right Side Pad 1 C Outer Casing GL820-UM

51 6. PARTS LISTS Bottom Parts No. Part No. Part Name Description Q'ty Remarks Rank AMP Board 1 A Cover, Connector 1 C Bottom Parts 1 2 GL820-UM

52 6. PARTS LISTS Top Parts No. Part No. Part Name Description Q'ty Remarks Rank Main Control Board, with SD card 1 A Control Panel Board 1 A Top Cover, with LCD 1 A Bracket, LCD 1 C Key Pad 1 C Core, LCD Flexible Cable E04FG C Flexible Cable, LCD FC,RN C Top Parts Fixing tape for core GL820-UM

53 6. PARTS LISTS Replaceable parts for the main control board No. Part No. Part Name Description Q'ty Remarks Rank Switch, AJ76231BF SW1: Power Switch 1 A Connector, HEC JP14: DC Input 1 A USB Type A Connector, XM7A-0442 J7: USB Connector 1 A USB Type B Connector, XM7B-0442 J8: USB Connector 1 A LAN Connector, TM11R-5M2-88-LP J9: LAN Connector 1 A Backup Battery, ML2130-TT BAT1: Backup Battery 1 A GL820-UM

54 6. PARTS LISTS Bottom Case No. Part No. Part Name Description Q'ty Remarks Rank Cover, Battery 1 C Bottom Case 1 C Bottom Case Terminal Unit No. Part No. Part Name Description Q'ty Remarks Rank Terminal Unit 1 A Terminal Base 1 A Terminal Base Plate Including 4 screws 1 A Terminal Base Extension Cable 1 A GL820-UM

55 6. PARTS LISTS Standard Accessories No. Part No. Part Name Description Q'ty Remarks Rank 1 GL820-CDM01M CD Manual, Software 1 B GL820-UM-851 Quick Start Manual 1 English B GL820-UM-801 Quick Start Manual 1 Japanese B AC Adapter JP, with AC cable KSAH T1M2 1 Japan A AC Adapter UL, with AC cable KSAH T1M2 1 UL A AC Adapter CEE, with AC cable KSAH T1M2 1 CEE A AC Adapter BS, with AC cable KSAH T1M2 1 BS A AC Adapter CCC, with AC cable KSAH T1M2 1 China A GL820-UM

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57 7. BLOCK DIAGRAM 7. Block Diagram 7.1 Main Unit Power Block & Main Control Main Unit Power Block & Main Control Secondary circuit Standard AC IN Primary circuit AC Adapter J14 KSAH T1M2 POWER SW SW Main Control Board (RN *) To Battery1 J15 To Battery2 J16 J13 J6 To Humidity Sensor J205 J203 AMP Board (RN *) J201 J301 KEY Board (RN *) NOTE ISOLATION ISOLATION J401 J403 R ELAY Boar d (RN *) J402 Primary circuit Secondary circuit Signal input circuit : Connector to Connector J501 TERMINAL Board (RN *) J502 With expanded termial option J14 To Battery1 POWER SW J15 SW Main Control Board (RN *) To Battery2 J16 J13 J6 To Humidity Sensor J205 J203 AMP Board (RN *) J202 J301 KEY Board (RN *) TERMINAL Board J501 (RN *) J502 TERMINAL Board J501 (RN *) J502 CA,RN * J401 RELAY Board (RN *) J403 J604 J402 J401 J402 RELAY Board (RN *) J403 J604 TERMINAL BASE J603 Board (RN *) J601 J603 TERMINAL BASE Board J601 (RN *) Up to 10 terminal Base GL820-UM

58 7. BLOCK DIAGRAM 7.2 Main Control Block Main Control Block Secondary circuit FPGA WRITE J2 BAT1 J5 BL FLASH WRITE J3 J4 LCD FFC USB (to FLASH MEMORY) J7 USB (to PC) LAN J8 J9 Main Control Board RN * LCD1 J13 J203 Logic & Alarm & Pulse & Ext-Trig J204 AMP Board RN * GL820-UM

59 7. BLOCK DIAGRAM 7.3 AMP Block AMP Block + 1ch + 2ch + 19ch + 20ch - 1ch - 2ch - 19ch - 20ch b 1ch b 2ch b 19ch b 20ch J504 J504 J505 Signal Input Circuit (RN *) Terminal Board J501 J502 Signal Input Circuit (RN *) Terminal Board J401 J403 J402 J201 Signal Input Circuit Signal Input Circuit Signal Input Circuit Signal Input Circuit Signal Input Circuit Signal Input Circuit Signal Input Circuit Signal Input Circuit Signal Input Circuit Signal Input Circuit To Main Control (RN *) J13 J203 Secondary Circuit Amp Board (RN *) GL820-UM

60 7. BLOCK DIAGRAM 7.3 Details of the AMP Details of AMP Signal Input Circuit Signal Input + - b + - b Temperature Sensor Terminal Board Relay Board (RN *) (RN *) Photo MOS Relay Isolating Decoder Constant Current 1mA Attenuator Selector AMP AMP Selector AMP Board (RN *) AMP AMP AMP AMP AMP A/D DC±5V DC/DC AIC1660CS Isolating Secondary Circuit Photocoupler TLP113 Main Control Board (RN *) DC/DC DCP010505BP-U DC+5V DC+24V AC Adaptor GL820-UM