Keithley 2000-SCAN-20 Instruction Manual page 7

3 Operation
Introduction ................................................................................
Signal limitations ........................................................................
Relay input signal limitations ..............................................
Scanner card detection ................................................................
Power-up detection ..............................................................
Scanner option bus query ....................................................
Model 2000-20 multimeter front panel scanner controls and
SCPI scanner commands .........................................................
Closing channels .................................................................
Opening channels ................................................................
Selecting measurement function .........................................
Configuring scan parameters ...............................................
SCPI scanner commands ............................................................
Typical applications ....................................................................
Resistor testing ....................................................................
Current measurements .......................................................
Measurement considerations ....................................................
Path isolation .....................................................................
Magnetic fields ..................................................................
Electromagnetic interference (EMI) ..................................
Ground loops .....................................................................
Keeping connectors clean ..................................................
4 Service Information
Introduction ................................................................................
Handling and cleaning precautions ............................................
Handling precautions ...........................................................
Soldering precautions ..........................................................
Performance verification ............................................................
Environmental conditions ...................................................
Recommended equipment ...................................................
Path resistance tests .............................................................
Contact potential tests .........................................................
Isolation tests .......................................................................
Special handling of static-sensitive devices .............................
Principles of operation ..............................................................
Block diagram ...................................................................
Relay control .....................................................................
Switching circuits ..............................................................
Power-on safeguard ...........................................................
3-2
3-2
3-2
3-3
3-3
3-3
3-4
3-4
3-5
3-5
3-6
3-8
3-9
3-9
3-11
3-12
3-12
3-13
3-13
3-14
3-15
4-2
4-2
4-2
4-3
4-3
4-3
4-4
4-4
4-6
4-7
4-10
4-10
4-10
4-11
4-11
4-11