KERN RPB Service Manual

Price computing scale

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GB
KERN RPB
Version 1.0
KERN & Sohn GmbH
Ziegelei 1
D-72336 Balingen-Frommern
E-Mail: info@kern-sohn.com
Service Manual
Price Computing Scale
Tel: 0049-[0]7433- 9933-0
Fax: 0049-[0]7433-9933-149
Internet: www.kern-sohn.com
Page 2
08/2006

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Summary of Contents for KERN RPB

  • Page 1 KERN & Sohn GmbH Ziegelei 1 Tel: 0049-[0]7433- 9933-0 D-72336 Balingen-Frommern Fax: 0049-[0]7433-9933-149 E-Mail: info@kern-sohn.com Internet: www.kern-sohn.com Service Manual Page 2 Price Computing Scale KERN RPB Version 1.0 08/2006...
  • Page 2: Table Of Contents

    MECHANICAL ASSEMBLY................13 EXPLODED DRAWING ................13 LIST OF MECHANICAL ASSEMBLY ............14 SCHEMATICS AND COMPONENTS LAYOUT ..........15 FRONT DISPLAY SCHEMATIC..............15 MAIN PCB ASSEMBLY................16 MAIN SCHEMATIC LAYOUT ..............17 PILLAR DISPLAY SCHEMATIC..............18 REAR DISPLAY SCHEMATIC ..............19 RPB-SH-e-0610...
  • Page 3: Introduction

    1 INTRODUCTION The RPB series of digital price-computing scales provide an accurate, fast and versatile method of computing price by weight. For all revisions from 1.27 and above, the price per kilogram and per 100 gram key can be disabled at the factory for the scales to be used in South Africa and Far East.
  • Page 4: Troubleshooting

    Factory calibration has been tampered with- check the ADC counts and re-calibrate. An error “E9” The scale is not stable to set the initial zero. displays on Air drafts or vibration or unstable table. the screen Electronics may be damaged. RPB-SH-e-0610...
  • Page 5: Calibration

    • For verified balances, the jumper is on a pin • For adjustment the jumper must be set on both pins Position jumper for adjustment Position of seal 2. Top of the balance • Remove weighing plate Sealing by seal or by lead seal RPB-SH-e-0610...
  • Page 6: Calibration Procedure

    Or it will show “ ” “ ” if calibration could not be completed correctly. CAL F1 The scale will return to the parameter menu (“ ”). Return to weighing mode by pressing the key. Back to calibration process by pressing the key. RPB-SH-e-0610...
  • Page 7: Service Parameters

    0.00 Point Weight decimal point location Point 0.00 0.00 Unit Price/Price decimal point Init ZEro Initial Zero Range rE ZEro Re-Zero range SCSivE tArE Successive Tare Enable A/D counts Display the A/D counts roUnd Rounding off the Total Price RPB-SH-e-0610...
  • Page 8: F1 - Calibration

    ” is shown. The display will show the current resolution, either 3000 or 6000 or Dual Range. Press the key to change the value. Press to accept the displayed value. NOTE: Only 3000 is allowed for the RPB scales. RPB-SH-e-0610...
  • Page 9: F3 - Capacity

    Press the key to change the value and press to accept the value. NOTE: Only certain positions are allowed for the RPB scales. 4.5 F5 – UNIT PRICE/TOTAL PRICE DECIMAL POINT LOCATION To enter this parameter, press the key when “...
  • Page 10: F6 - Initial Zero Range

    The display will show the current initial zero range. Press the key to change the value and press to accept the value. NOTE: Only 10% is allowed for the RPB scales. 4.7 F7 – RE-ZERO RANGE To enter this parameter, press the key when “...
  • Page 11: F9 - A/D Count

    To enter this parameter, press the key when “ ” is shown. The display will show the current settings. Press the key to change the value and press to accept the value. Press to return to the PARAMETER menu. Press to return to weighing. RPB-SH-e-0610...
  • Page 12: Wiring Diagram

    5 WIRING DIAGRAM RPB-SH-e-0610...
  • Page 13: Mechanical Assembly

    6 MECHANICAL ASSEMBLY 6.1 EXPLODED DRAWING RPB-SH-e-0610...
  • Page 14: List Of Mechanical Assembly

    PCBA the load cell lower supporter the load cell the load cell upper supporter washer screw front display PCBA upper cover rear display overlay ABS pan SST pan RPB-SH-e-0610...
  • Page 15: Schematics And Components Layout

    7 SCHEMATICS AND COMPONENTS LAYOUT 7.1 FRONT DISPLAY SCHEMATIC RPB-SH-e-0610...
  • Page 16: Main Pcb Assembly

    7.2 MAIN PCB ASSEMBLY RPB-SH-e-0610...
  • Page 17: Main Schematic Layout

    7.3 MAIN SCHEMATIC LAYOUT RPB-SH-e-0610...
  • Page 18: Pillar Display Schematic

    7.4 PILLAR DISPLAY SCHEMATIC RPB-SH-e-0610...
  • Page 19: Rear Display Schematic

    7.5 REAR DISPLAY SCHEMATIC RPB-SH-e-0610...

Table of Contents