OHAUS T71P, Service Manual

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TABLE OF CONTENTS
CHAPTER 4 TESTING
(continued)
Page No.
4.3.1 Increasing/Decreasing Load Test.......................................................................4-2
4.3.2 Overload/Underload Test ...................................................................................4-2
4.4 Performance Tests Using a Load Cell Simulator.......................................................4-3
4.5 Calibration Retention Test .........................................................................................4-3
4.6 RS232 Interface Test................................................................................................. 4.3
4.7 Print Test ...................................................................................................................4-3
CHAPTER 5 PARTS LISTS & DIAGRAMS
5-1 7000 Series T71P Indicator: Housing & Internal Parts ..............................................5-2
5-2 7000 Series T71XW Indicator: Housing & Internal Parts...........................................5-4
APPENDIX A SETUP & CALIBRATION VALUES
Appendix A. Geographical Adjustment Values .................................................................. A-1
LIST OF TABLES
TABLE NO. TITLE Page No.
1-1 Specifications ........................................................................................................1-3
1-2 Functions of Display Controls................................................................................1-7
1-3 Functions of Display Keypad.................................................................................1-8
1-4 T71 Menu Structure ..............................................................................................1-9
1-5 Interface Command Table...................................................................................1-18
1-6 Default Serial Output Format...............................................................................1-19
2-1 Diagnostic Guide ...................................................................................................2-3
4-1 Increasing/Decreasing Load Test..........................................................................4-2
5-1 T71P Indicator: Housing & Internal Parts ..............................................................5-3
5-2 T71XW Indicator: Housing & Internal Parts...........................................................5-5
A-1 Geographical Adjustment Values ......................................................................... A-1
LIST OF ILLUSTRATIONS
FIGURE NO. TITLE
1-1 Top and Bottom Housing, and Rear Panel, T71P .................................................1-2
1-2 Top and Bottom Housing, and Rear Panel, T71XW..............................................1-3
1-3 Printed Circuit Board (PCB), T71 Indicator ...........................................................1-5
1-4 Load Cell Terminal Blocks J4 (Scale 1) and J7 (Scale 2) .....................................1-5
1-5 Load Cell wiring.....................................................................................................1-6
1-6 Open/shorted jumpers...........................................................................................1-6
1-7 RS232 Pins ...........................................................................................................1-6
1-8 Battery charge symbol...........................................................................................1-7
1-9 T71 Display ...........................................................................................................1-7
1-10 T71 Display Indicator.............................................................................................1-7
1-11 Changing the menu language .............................................................................1-12
1-12 T71P Wire Seal ...................................................................................................1-16
1-13 T71P Paper Seal .................................................................................................1-16
1-14 T71XW Wire Seal................................................................................................1-16
1-15 T71XW Paper Seal..............................................................................................1-16
2-1 Visual Checking Procedures .................................................................................2-1
5-1 Series 7000 T71P Indicator: Housing & Internal Parts..........................................5-2
5-1 Series 7000 T71XW Indicator: Housing & Internal Parts ......................................5-4
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