Keithley 6517 Service Manual page 10

1 Performance Verification
Figure 1-1 Connections for DC volts verification ....................................................................................................... 1-7
Figure 1-2 Connections for 20pA–2µA range verification .......................................................................................... 1-7
Figure 1-3 Connections for 20µA–20mA range verification ....................................................................................... 1-9
Figure 1-4 Connections for coulombs verification .................................................................................................... 1-10
Connections for ohms verification (2M Ω –200M Ω ranges) ..................................................................... 1-12
Figure 1-5
Connections for ohms verification (2G Ω –200G Ω ranges) ...................................................................... 1-13
Figure 1-6
Connections for ohms verification (2T Ω –200T Ω ranges) ....................................................................... 1-14
Figure 1-7
Figure 1-8 Shielded fixture construction ................................................................................................................... 1-14
Figure 1-9 Connections for voltage source verification ............................................................................................ 1-15
Figure 1-10 Connections for temperature verification ................................................................................................. 1-16
Figure 1-11 Connections for humidity verification ..................................................................................................... 1-17
2 Calibration
Figure 2-1 Calibration unit connections ...................................................................................................................... 2-7
Figure 2-2 Connections for DC volts calibration ......................................................................................................... 2-8
Figure 2-3 Connections for 20pA–2µA range calibration ........................................................................................... 2-9
Figure 2-4 Connections for 20µA–20mA range calibration ...................................................................................... 2-10
Figure 2-5 Connections for coulombs calibration ..................................................................................................... 2-11
Figure 2-6 Connections for temperature calibration .................................................................................................. 2-12
Figure 2-7 Connections for voltage source calibration .............................................................................................. 2-13
Figure 2-8 Connections for humidity calibration ...................................................................................................... 2-14
4 Routine Maintenance
Figure 4-1 Rear panel .................................................................................................................................................. 4-2
5 Troubleshooting
Figure 5-1 Model 6517A overall block diagram ......................................................................................................... 5-3
Figure 5-2 Display board block diagram ..................................................................................................................... 5-4
Figure 5-3 Power supply block diagram ...................................................................................................................... 5-5
Figure 5-4 Digital board block digram ........................................................................................................................ 5-7
Figure 5-5 Analog board block diagram ...................................................................................................................... 5-8
Figure 5-6 Preamp configurations ............................................................................................................................... 5-9
List of Illustrations
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