Keithley 3720, Reference Manual, Page: 5 / 186

Introduction ................................................................................................................. 1-1
Contact information .............................................................................................................. 1-1
Safety precautions for connections...................................................................................... 1-1
Series 3700A documentation............................................................................................... 1-2
Series 3700A cards general operation...................................................................... 2-1
Available cards..................................................................................................................... 2-1
Card installation ................................................................................................................... 2-2
Verifying card installation .......................................................................................................... 2-3
Connection safety ................................................................................................................ 2-3
Pseudocards ........................................................................................................................ 2-4
Installed pseudocards ............................................................................................................... 2-5
Series 3700A cards power usage .............................................................................. 3-1
Maximum power usage with Series 3700A cards................................................................ 3-1
Power budgeting and calculation .............................................................................................. 3-2
Power budgeting examples ....................................................................................................... 3-3
Hardware interlocks ............................................................................................................. 3-7
Engaging hardware interlocks ................................................................................................... 3-8
Interlock status .......................................................................................................................... 3-8
Interlock pin numbers ................................................................................................................ 3-9
Model 3720 multiplexer card...................................................................................... 4-1
Introduction to the Model 3720 dual 1x30 multiplexer card ....................................................... 4-1
Available accessories: Model 3720 ........................................................................................... 4-2
Connection information: Model 3720......................................................................................... 4-2
Schematics: Model 3720 ........................................................................................................... 4-3
Model 3721 multiplexer card...................................................................................... 5-1
Introduction to the Model 3721 dual 1x20 multiplexer card ....................................................... 5-1
Available accessories: Model 3721 ........................................................................................... 5-2
Model 3721-ST accessory board channel list............................................................................ 5-2
Connection information: Model 3721......................................................................................... 5-3
Schematics: Model 3721 ........................................................................................................... 5-4
Amps channel fuse replacement procedure .............................................................................. 5-7
Model 3721: AMPS channels fuse replacement........................................................................ 5-8
Model 3722 high-density multiplexer card ............................................................... 6-1
Introduction to the Model 3722 card.......................................................................................... 6-1
Available accessories: Model 3722 ........................................................................................... 6-2
Connection information: Model 3722......................................................................................... 6-2
Schematics: Model 3722 ........................................................................................................... 6-3
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