Guildline 6675A - Page 2

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TABLE OF CONTENTS
1. INTRODUCTION.......................................................................................................1-1
1.1. MODEL 6675A AUTOMATIC DIRECT-CURRENT-COMPARATOR RESISTANCE BRIDGE
GENERAL DESCRIPTION...........................................................................................................................................1-1
1.2. PANEL FRONT TERMINALS/CONTROLS ..............................................................................................1-1
1.2.1. Reference Resistor Input Terminals..........................................................................................................1-1
1.2.2. Resistor Under Test Input Terminals........................................................................................................1-1
1.2.3. Numeric Keypad........................................................................................................................................1-1
1.2.4. Special Keys. .............................................................................................................................................1-2
1.2.4.1. Cursor Movement Keys. ......................................................................................................................1-2
1.2.4.2. Function Keys.......................................................................................................................................1-2
1.2.5. Display.......................................................................................................................................................1-2
1.2.6. High Voltage Out Terminals.....................................................................................................................1-2
1.2.7. Program Out Terminals.............................................................................................................................1-2
1.2.8. Extender In Terminals...............................................................................................................................1-3
1.2.9. Ground Terminals......................................................................................................................................1-3
1.2.10. Guard Terminals........................................................................................................................................1-3
1.3. REAR PANEL CONNECTORS/CONTROLS.............................................................................................1-4
1.3.1. Chart Recorder Output. .............................................................................................................................1-4
1.3.2. IEEE-488 Interface....................................................................................................................................1-4
1.3.3. RS232 Interface.........................................................................................................................................1-4
1.3.4. Sync Output...............................................................................................................................................1-4
1.3.5. Line Input Voltage Selector. .....................................................................................................................1-4
1.3.6. Line Input Connector. ...............................................................................................................................1-4
1.3.7. Power Switch.............................................................................................................................................1-5
2. PERFORMANCE SPECIFICATIONS.......................................................................2-1
2.1. GENERAL SPECIFICATIONS .....................................................................................................................2-1
2.2. GENERAL SPECIFICATIONS (continued) ................................................................................................2-2
2.3. RESISTANCE MEASUREMENT SPECIFICATIONS..............................................................................2-3
2.4. TEMPERATURE MEASUREMENT SPECIFICATION..........................................................................2-4
3. OPERATING INSTRUCTIONS.................................................................................3-1
3.1. PRELIMINARIES............................................................................................................................................3-1
3.1.1. Rackmount Bracket...................................................................................................................................3-1
3.2. WARNING.........................................................................................................................................................3-2
3.3. OPERATING PROCEDURE..........................................................................................................................3-4
3.4. GENERAL KEY/DISPLAY OPERATIONS................................................................................................3-7
3.4.1. Base Menu.................................................................................................................................................3-7
3.4.1.1. Base Menu Display. .............................................................................................................................3-7