OHAUS FD SERIES Service Manual

Also see for FD Series: Instruction manual User guide Quick start guide

Contents

OHAUS FD SERIES Service Manual Manual pdf 9 page image

1-1CHAPTER 1 INTRODUCTION1. INTRODUCTIONThis service manual contains instructions for the diagnosis and repair work to be performed by OhausDealers or Ohaus authorized service centers. Knowledge of the operation of the Scale is assumed.Instruction manuals may be required with this service manual. For complete information on operation,refer to the Instruction Manual.This manual covers maintenance on the following:FD Series Scales, Models FD3, FD6 and FD15The contents of this manual are contained in five chapters and an Appendix with service menu instructions.Chapter 1 Introduction - Contains information about service facilities, tools, test equipment, test masses,and service strategy.Chapter 2 Diagnosis - Contains information on problem verification, scale examination, preliminarychecks and troubleshooting tables.Chapter 3 Testing - Contains testing procedures, interconnection diagrams and wiring diagrams,performance tests, specifications and calibration.Chapter 4 Repair Procedures - Contains detailed repair procedures for all major components.Chapter 5 Parts Lists - Contains an exploded view identifying all serviceable replacement componentswith associated parts lists.Appendix A Service Menu - Contains Capacity, Geographical Code, Service Calibration and Rampinformation for the FD Series Scales in a service mode.1.1 SERVICE FACILITIESThe service area should be a stable environment.The bench area should be clean and should contain an antistatic mat with a personnel-grounding clipto protect internal circuit boards. The ideal electrical power source for the scales should be a dedicatedline to avoid sudden fluctuations or voltage drops caused by external equipment drawing heavy current.The service area for the scales should be away from direct sunlight, overhead heating or air conditioningducts, magnetic fields such as motors, large transformers or vibrating sources such as machinery.The power outlet should be grounded for safety. Sufficient space should be provided around the scale asnot to be affected by other equipment. This will ensure that the scale is operated under ideal conditions.