OHAUS Valor 3000, Руководство по обслуживанию

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TABLE OF CONTENTS
Ohaus Corporation www.ohaus.com i Valor™ 3000 Series Service Manual
Page No.
CHAPTER 1 GETTING STARTED
1.1 Introduction ............................................................................................................. 1-1
1.2 Service Facilities ..................................................................................................... 1-1
1.3
Tools and Test Equipment Required ....................................................................... 1-1
1.4 Specifications.......................................................................................................... 1-2
1.5
Scale Operation ...................................................................................................... 1-4
1.5.1 Overview of the Controls.................................................................................. 1-4
1.5.2 Overview of the Display Indicators ................................................................... 1-5
1.5.3 Power On......................................................................................................... 1-5
1.5.4 Power Off......................................................................................................... 1-5
1.5.5 Menu Setup ..................................................................................................... 1-5
1.6 Legal For Trade (LFT)............................................................................................. 1-6
1.6.1 LFT Setup Procedure....................................................................................... 1-6
1.7 Menu Structure ....................................................................................................... 1-7
CHAPTER 2 TROUBLESHOOTING
2.1 Troubleshooting ...................................................................................................... 2-1
2.2 Diagnostic Guide..................................................................................................... 2-1
2.2.1 Diagnosis ......................................................................................................... 2-1
CHAPTER 3 MAINTENANCE PROCEDURES
3.1 Preventive Maintenance.......................................................................................... 3-1
3.1.1 Preventive Maintenance Checklist ................................................................... 3-1
3.2 Opening the Scale................................................................................................... 3-1
3.2.1 Opening Valor 3000 Standard and Washable Models...................................... 3-2
3.3 Replacing the Load Cell .......................................................................................... 3-3
3.4 Replacing the Printed Circuit Board and Display ..................................................... 3-4
3.5 Replacing the Housing Seals .................................................................................. 3-5
3.6
Replacing the Function Label.................................................................................. 3-6
3.7 Replacing the Plastic Insert..................................................................................... 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. Load Cell Test Using RAMP.................................................................................... 4-1
4.5
Performance Tests.................................................................................................. 4-2
4.5.1 Precision Test .................................................................................................. 4-2
4.5.2 Repeatability Test ............................................................................................ 4-3
4.5.3 Linearity Test ................................................................................................... 4-5
4.5.4 Off-Center Load Test ....................................................................................... 4-5
4.5.5 Adjusting Off Center Load................................................................................ 4-6
CHAPTER 5 DRAWINGS AND PARTS LISTS
5-1 Valor 3000 Xtreme Scales: Housing & Internal Parts .............................................. 5-2
5-2
Valor 3000 Xtreme W Scales: Housing & Internal Parts .......................................... 5-4