Digi DC-788 Operation Manual
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Digi DC-788 Operation Manual

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Prepared
1st Amendment :
Issued by 2nd. R&D Dept., SHANGHAI TERAOKA ELECTRONIC CO., LTD.
Operation Manual for DC-788
: 8 July 2003
: 11 November 2004

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Summary of Contents for Digi DC-788

  • Page 1 Operation Manual for DC-788 Prepared : 8 July 2003 1st Amendment : : 11 November 2004 Issued by 2nd. R&D Dept., SHANGHAI TERAOKA ELECTRONIC CO., LTD.

  • Page 2: Table Of Contents

    1. General Layout ........................4 2. Purpose ..........................5 3. Features..........................5 4. Operating Conditions ......................5 5. Charging Conditions (for Rechargeable battery only) ............5 7. Display and Indicators....................... 6 7.1. Display Specifications........................6 7.2. Indicators............................6 8. Dimensions ........................6 9.
  • Page 3 20. Operations In Program Mode ..................18 20.1. Program Item Code ........................18 20.2. Delete Item Code in Memory...................... 19 20.2.1. Delete a Certain Item Code ......................19 20.2.2. Delete all Item Code........................19 20.2.3. Delete all Inventory Value from Memory ..................19 20.2.4.

  • Page 4: General Layout

    1. General Layout...

  • Page 5: Purpose

    - Gross Weight, Tare Weight, Net Weight, Unit Weight, Count, PLU code, Product Description, Product Lot No., Accumulated count. * Two scale channels, one for built-in platform, another for remote platform. * External printer connectible (RS-232C) - Label printer : DIGI GP-460R - Bar code printer : ZEBRA LP-2844 - Receipt printer :EPSON TM-U200 * 100 PLU, each PLU consists of Unit Weight, Tare Weight, Product Description(32 characters), Product Lot No.

  • Page 6: Display And Indicators

    6. Analog Specification * Input sensitivity : 1mV/V. : 0 ± 5mV. * Zero adjust range : 0 ± 0.5mV. * Zero balance range * L/C applied voltage : DC 5V. * Speed of A/D conversion : 30 times/sec. * Internal Resolution : 1000,000.

  • Page 7: External Connectors

    9. External Connectors * AC receptacle. * RS-232C interface. * 14 pin femal amphenol for external loadcell 10. Main Components * Microcomputer : Hitachi HD64F73687(56K Flash) / HD64F3684(32K Flash) / HD6433687(56K ROM) / HD6433686(48K ROM) ./ HD6433685(40K ROM) / HD6433684(32K ROM) / HD6433683(23K ROM) * Crystal Oscillator : 10 MHz.

  • Page 8: Keysheet Layout

    12. Keysheet Layout Type A Type B 13. Key Functions : ON/OFF key. Turn the power ON or OFF. : Numeric keys. Input numerical value. : Decimal Point key. Set decimal point. : CLEAR key. Clear numerical values. : Sampling key. Used for computing unit weight by sampling. : TARE key.Set or clear tare value.

  • Page 9: Notable Differences From Current Teraoka Scales

    : MINUS key. Correct operation on products. : PLUS key. Used for accumulation. : Data Setting key. Set up SPEC data or clear TOTAL data. :Select 1 Scale or 2 Scale : MODE SET key. Used to enter programming mode from weighing mode. : NET/GROSS change key.

  • Page 10: Physical Layout Of Electrical Connection

    16. Physical layout of Electrical Connection...

  • Page 11: Hardware Description

    17. Hardware Description 17.1. Microcomputer The H8/3687 Series Microcomputer was chosen for the following reasons: * Cheaper. * High-speed CPU with sixteen 16-bit registers. * 33 interrupt sources and efficient interrupt processing. * Four versatile timers. * Two on-chip serial communication interface channels. * 8-channel 10-bit resolution A/D converter.
  • Page 12 Assignment Device Remark JUMPER&E7 JUMPER&E7 MODE SELECT MODE SELECT MODE SELECT PB0/AN0 PB1/AN1 Keyboard Key Return Line PB2/AN2 Keyboard Key Return Line PB3/AN3 Keyboard Key Return Line PB4/AN4 Keyboard Key Return Line PB5/AN5 PB6/AN6 Battery Detects Battery Voltage PB7/AN7 JUMPER MODE SELECT OSC1 Oscillator...

  • Page 13: Operations In Weighing Mode

    19. Operations In Weighing Mode 19.1. ON/OFF 1 - ZERO 2 - NET 3 - INSUFF 4 – SCALE1 5 - RECOMP 6 - MEMORY Key-in OPERATION TARE WEIGHT U.Weight QTY. Display for 1.5 seconds. [ON/OFF] 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 *Note1...

  • Page 14: Digital Unit Weight Operation

    19.3.2. Digital Unit Weight Operation 1 - ZERO 2 - NET 3 - INSUFF 4 – SCALE1 5 - RECOMP 6 – MEMORY Key-in OPERATION TARE WEIGHT U.Weight QTY. Put weight on platter 0.0 0 0 0.5 2 8 Key in unit weight. [5] [.] [2] [5] 5.2 5 7 8 [7] [8]...

  • Page 15: Parts Counting Operation

    0.0 0 0 0.0 0 0 0.0 0 0 0.0 0 0 Note: 1) If DC-788 is connected to printer/PC, the data is printed/output by pressing [+], [-] and [*] key. 19.5.3. Negative Counting Function 1 - ZERO 2 - NET 3 - INSUFF 4 –...

  • Page 16: Net/Gross Operation

    19.6. Net/Gross Operation 1 - ZERO 2 - NET 3 - GROSS 4 - INSUFF 5 - RECOMP 6 – MEMORY Key-in OPERATION TARE WEIGHT U.Weight QTY. Put product on platter 0.0 0 0 0.4 0 0 Read out Gross weight [Gross] 0.4 0 0 Return to Weighing mode.

  • Page 17: Item Code Call Up

    0.1 4 5 1.6 9 8 0 Note: 1) If DC-788 is connected to printer/PC, the data is printed/output by pressing [*] key. And inventory value will update according to the IN/OUT status and Accumulation when quantity is accumulating. Subtract from inventory when OUT status. Accumulate inventory when IN status.

  • Page 18: Memory Field Of Item Code

    Memory Field of Item Code • Parameters Max. length Memory Field Item Code 10 digits numeric data or Alphanumeric data Parts No. 16 digits Alphanumeric data Parts Name 32 Alphanumeric data Lot Number 32 Alphanumeric data Tare Weight 5 digits + Decimal figure Unit Weight 5 digits + Decimal figure Inventory...

  • Page 19: Delete Item Code In Memory

    20.2. Delete Item Code in Memory 20.2.1. Delete a Certain Item Code 1 - ZERO 2 - NET 3 - GROSS 4 - INSUFF 5 - RECOMP 6 – PROG Key-in OPERATION TARE WEIGHT U.Weight QTY. Weighing mode. 0.0 0 0 0.0 0 0 Enter into Program mode.

  • Page 20: Delete All Tare Weight Value From Memory

    20.2.5. Delete all Tare Weight Value from Memory 1 - ZERO 2 - NET 3 - GROSS 4 - INSUFF 5 - RECOMP 6 – PROG Key-in OPERATION TARE WEIGHT U.Weight QTY. Weighing mode. 0.0 0 0 0.0 0 0 Enter into Program mode.

  • Page 21: Reset Sequence Number To 0

    20.2.9. Reset Sequence Number to 0 1 - ZERO 2 - NET 3 - GROSS 4 - INSUFF 5 - RECOMP 6 – PROG Key-in OPERATION TARE WEIGHT U.Weight QTY. Weighing mode. 0.0 0 0 0.0 0 0 Enter into Program mode. [MODE] P r o G [RE-ZERO]...
  • Page 22 21. Error Massage List The following error message will appear when an incorrect operation is performed. Message Remarks Appropriate Operation When displayed weight exceeded capacity+9d, or something Remove the item on the platter. is on the platter when power on. When displayed minus weight >= 9d.

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