Table Of Contents - OHAUS Defender D30BR Service Manual

CHAPTER 1 INTRODUCTION
1.1 Introduction ................................................................................................................1-1
1.2 Service Facilities........................................................................................................1-1
1.3 Tools and Test Equipment Required .........................................................................1-2
1.4 Test Masses Required...............................................................................................1-2
1.5 Service Strategy ........................................................................................................1-2
1.6 Physical Description: Defender B & V Bases ............................................................1-2
1.7 Specifications.............................................................................................................1-3
1.8 How Load Cells Operate............................................................................................1-4
CHAPTER 2 TROUBLESHOOTING
2.1 Troubleshooting .........................................................................................................2-1
2.1.1 Checking Load Cells for Trouble ........................................................................2-1
CHAPTER 3 MAINTENANCE AND REPAIR PROCEDURES
3.1 Preventive Maintenance ............................................................................................3-1
3.1.1 Preventive Maintenance Checklist .....................................................................3-1
3.2 Replacing the Load Cell.............................................................................................3-1
3.3 Overload Stop Adjustments .......................................................................................3-2
CHAPTER 4 TESTING
4.1. Testing .......................................................................................................................4-1
4.2 Load Cell Resistance Checks....................................................................................4-1
4.3 Calibration with an External Indicator ........................................................................4-1
4.4. Consistency Check ....................................................................................................4-2
4.5 Performance Tests ....................................................................................................4-2
4.5.1 Off Center Load (Shift) Test ...............................................................................4-3
4.5.2 Adjusting Off Center Load ..................................................................................4-4
4.5.3 Full Load Test.....................................................................................................4-5
CHAPTER 5 DRAWINGS AND PARTS LISTS
5-1 Defender B & V Bases: Housing & Internal Parts......................................................5-2
APPENDIX A: GLOSSARY
A-1 Glossary.................................................................................................................... A-1
1-1 Specifications for Defender B & V Bases ..............................................................1-3
4-1 Load Cell Resistance Readings ............................................................................4-1
4-2 Load Cell Output Readings ...................................................................................4-2
5-1 Defender B & V Bases: Parts List .........................................................................5-3
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Defender™ B & V Series Service Manual
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