OHAUS Valor 1000 Service Manual - page 5
TABLE OF CONTENTS
Page No.
CHAPTER 1 GETTING STARTED
1.1 Introduction ................................................................................................................1-1
1.2
Service Facilities........................................................................................................1-1
1.3
Tools and Test Equipment Required .........................................................................1-2
1.4
Specifications.............................................................................................................1-2
1.5 Scale
Operation .........................................................................................................1-3
1.5.1 Overview of the Controls ....................................................................................1-3
1.5.2 Power
On ...........................................................................................................1-4
1.5.4 Power
Off ...........................................................................................................1-4
CHAPTER 2 TROUBLESHOOTING
2.1
Troubleshooting .........................................................................................................2-1
2.2
Diagnostic Guide .......................................................................................................2-1
2.2.1 Diagnosis............................................................................................................2-1
2.2.2 Checking Load Cells for Trouble ........................................................................2-1
2.2.3 Diagnostic
Guide ................................................................................................2-4
CHAPTER 3 MAINTENANCE PROCEDURES
3.1
Preventive Maintenance ............................................................................................3-1
3.1.1 Preventive
Maintenance
Checklist .....................................................................3-1
3.2
Service Strategy ........................................................................................................3-1
3.3
Opening the Scale .....................................................................................................3-1
3.2.1 Separating the Top and Bottom Housings..........................................................3-2
3.4
Removing/Replacing the Main PCB and Switches PCB............................................3-3
3.5
Removing/Replacing the Load Cell ...........................................................................3-4
3.6
Setting the Overload Stops........................................................................................3-5
3.7
Removing/Replacing the Battery ...............................................................................3-6
3.8
Replacing the Fuse....................................................................................................3-6
3.9
Replacing the Function Label ....................................................................................3-6
CHAPTER 4 TESTING
4.1. Testing .......................................................................................................................4-1
4.1.1 Test Masses Required .......................................................................................4-1
4.2 Operational
Test ........................................................................................................4-1
4.3
Segment Display Test................................................................................................4-1
4.4. Performance
Tests ....................................................................................................4-2
4.4.1 Precision
Test.....................................................................................................4-2
4.4.2 Repeatability
Test...............................................................................................4-3
4.4.3 Linearity
Test ......................................................................................................4-5
4.4.4 Off-Center Load Test..........................................................................................4-5
4.4.5 Adjusting Off Center Load ..................................................................................4-6
CHAPTER 5 DRAWINGS AND PARTS LISTS
5-1 Valor 1000 Scales: Housing & Internal Parts.............................................................5-2
Appendix A STANDARD CALIBRATION
A.1 Calibration................................................................................................................. A-1
A.2
Setup and Calibration .................................................................................................!-2
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Valor™ 1000 Series Service Manual