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CAS AD series Service Manual

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SERVICE MANUAL
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  • Page 1 AD series SERVICE MANUAL...

  • Page 2: Table Of Contents

    THE CONTENTS CHAPTER-I THE GENERAL INTRODUCTIONS A..PREFACE B..THE PRECAUTIONS C..THE SPECIFICATIONS D..SEALING METHOD CHAPTER-II THE CALIBRATIONS A..SET THE CALIBRATION MODE ............. B..THE MODES ................B. 1.. THE MODE 1 ................B. 2.. THE MODE 2 ................B.
  • Page 3 CHAPTER-V THE SCHEMATICS AND THE DIAGRAMS A.1..MAIN CIRCUIT DIAGRAM ............A.2..DISPLAY CIRCUIT DIAGRAM ............. B..WIRING DIAGRAM ..............C..PARTS LOCATION ..............CHAPTER-VI THE ERROR MESSAGES A..THE ERROR MESSAGES............... A. 1.. ERR 1 ................... A. 2.. ERR 2..................3.. ERR 10.................. A.

  • Page 4: B.... The Precautions

    We believe that your needs will be satisfied and you will have proper reliability with in variable weight. This manual will help you with proper operations and care of the AD series. Please keep it handy for the future references.

  • Page 5: D....sealing Method

    D. SEALING METHOD...

  • Page 6: A.... Set The Calibration Mode

    CHAPTER-II THE CALIBRATIONS A. SET THE CALIBRATION MODE The CAL switch is located underneath of the hole left of the upper case. 1.Remove a seal cover. 2.Slide CAL switch to the CAL position. 3. Plug into the AC outlet. -> The display shows "CAL" three times.

  • Page 7: B.... The Modes

    B. THE MODES This scale has 5 modes for set of weighing condition and for set of the span calibration. These 5 modes are described as below.
  • Page 8 B. 1 THE MODE 1 In this mode 1, a various weighing conditions can be set. Weighing conditions for capacity, external resolution, and decimal point etc. In this mode, below three keys have an alternative functions respectively. * For entire sets of weighing conditions, please refer to the APPENDIX I. B.2 THE MODE 2 In this mode 2, intacted A/D reading is shown on the display.

  • Page 9: C.... The Span Calibration

    C. THE SPAN CALIBRATION MODE 4) C. 1 SET THE CALIBRATION MODE The CAL switch is located underneath of a hole left of the upper case. 1.Remove a seal plate. 2.Slide CAL switch to the CAL position. 3. Plug into the AC outlet. ->...

  • Page 10: C.3..Span Calibration

    C.3 SPAN CALIBRATION In this MODE 4, "ULOAd" is shown on the display. 1. Press the "ON/OFF" key, -> The display shows a count down 9 to 0. -> "LOAd" is shown on the display. 2.Load a full weight on the platter gently. 3.Press the "ON/OFF"...

  • Page 11: D. 1.. Set The Calibration Mode

    D. THE SPAN CALIBRATION FROM REPAIR D.1 SET THE CALIBRATION MODE The CAL switch is located underneath of a hole left of the upper case. 1.Remove a seal plate. 3. Plug into the AC outlet. -> The display shows "CAL" three times. D.2 CHECK THE INITIAL ZERO AND SPAN(MODE 2) 2.Slide CAL switch to the CAL position.

  • Page 12: D.4.. Confirmation Of The Span

    D.4 CONFIRMATION OF THE SPAN(MODE 5) This mode 5 is only available after a performance of previous span calibration(mode 4). 1. Press the "TARE" key, -> The display shows the initial zero point. 2.Press the "ZERO" key to read a span(net weight), ->...

  • Page 13: E.... The Span Calibration With A Partial Load

    E. THE SPAN CALIBRATION WITH A PARTIAL LOAD For the purpose of convenience, a partial span calibration is provided. E.1 SET TO THE CALIBRATION MODE The CAL switch is located underneath of a hole left of the upper case. 1.Remove a seal plate. 2.Slide CAL switch to the CAL position.

  • Page 14: E.4..The Span Calibration

    E.4 THE SPAN CALIBRATION In this MODE 4, "ULOAd" is shown on the display. 1. Press the "ON/OFF" key, -> The display shows a count down 9 to 0. -> "LOAd" is shown on the display. 2.Load a full weight on the platter gently. 3.Press the "ON/OFF"...

  • Page 15: A.... Replacement Of The Load Cell

    CHAPTER-III THE PART REPLACEMENTS A. REPLACEMENT OF THE LOAD CELL A.I REPLACEMENT OF THE LOAD CELL A.I.I Remove the platter and disassemble the upper case. A. 1.2 Remove the platform on the load cell with a hex wrench. A.1.3 Disconnect a connector wire of the load cell from the P.C.B. A.1.4 Remove the load cell from the body.

  • Page 16: B....replacement Of The Analog Module

    B. REPLACEMENT OF THE ANALOG MODULE B.1 REPLACEMENT OF THE ANALOG MODULE B.I.I Remove platter and the upper case. B.1.2 Take a main circuit board out on the body. B.1.3 Desolder the analog module pins(ll points) on main board. B.1.4 Replace the analog module(CAM 01) by a new one. B.

  • Page 17: A.... The Transformer

    CHAPTER-IV THE TRANSFORMER A. THE TRANSFORMER...
  • Page 18 CHAPTER-VI THE SCHEMATICS AND THE DIAGRAMS...

  • Page 19: A.1..Main Circuit Diagram

    A.1 MAIN CIRCUIT DIAGRAM...
  • Page 21 A.2 DISPLAY CIRCUIT DIAGRAM REV : 00...
  • Page 22 B. WIRING DIAGRAM REV:00...
  • Page 23 C. PARTS LOCATION REV : 00...

  • Page 24: Chapter-Vi The Error Messages

    CHAPTER-VI THE ERROR MESSAGES A. THE ERROR MESSAGES These error messages will guide you to do a quick troubleshooting. A.I 'Err 1* The "Err 1" can be happen when a current zero point has shifted from the last span calibration. A.1.1 If a dead load of load cell has changed.

  • Page 25: Chapter-Vii The Others

    CHAPTER-VII THE OTHERS A. FOR THE SERIAL INTERFACES THE PROTOCOLS FOR THE CAS STANDARD SERIAL INTERFACE THIS IS HALF-DUPLEX COMMUNICATION RS-232C. A. 1 THE COMMUNICATION AGREEMENTS l.BAUD RATE -> 9,600 EPS 2.DATA BIT -> 8 BIT 3.STOP BIT -> 1 BIT 4.PARITY BIT ->...
  • Page 26 A. 2.2 THE WIRE CONNECTIONS OF THE D-SUB 25 PIN CONNECTOR OF A COMPUTER SIDE A. 3 THE PROTOCOL A. 4.THE DATA TRAINS 1. THE DATA TRAINS FOR THE "DC1" REMARKS : .STA -> A WEIGHING STATUS OF THE SCALE SCALE IS STABLE ->...
  • Page 27 REMARKS : .STA -> A WEIGHING STATUS OF THE SCALE SCALE IS STABLE -> "S" , NOT STABLED -> "U" .SIGN ->SIGNS OF THE WEIGHT DATA ZERO AND POSITIVE WEIGHT -> " " , NEGATIVE WEIGHT -> "-" , OVER LOAD -> "F" . P7 THROUGH PO -> PRICE DATA IF THE OVER FLOW IS HAPPEN IN PRICE, ALL "F"s WILL FILL TO DATA BLOCK OF THE PRICE.
  • Page 28 B. EXPLODED VIEW(MECHANICAL PART) REV : 00...

  • Page 31: Chapter-Viii Appendix-I

    CHAPTER-VIII APPENDIX-I A. INPUT CODES FOR THE DIGITAL MODULE A.1 THE ALTERNATIVE KEY FUNCTIONS A.I.I In this mode, the functions of three key are converted as below Fig. 1. A. 1.2 "INC" -> This key does increase the number by one at current number. And also any numeral can be increased from "0"...

  • Page 32: The Span Calibration

    THE CODES FOR PRINTER VERSION '.NOTE : This printer interface feature is only available with CAS TOP PRINTER P-202 THE CODES FOR kg/lb VERSION A.3 THE SPAN CALIBRATION Refer to SPAN CALIBRATION FROM REPAIR in chapter-II.

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