Keithley 2000-SCAN-20 Instruction Manual page 9

List of Illustrations
2
Figure 2-1
Figure 2-2
Figure 2-3
Figure 2-4
Figure 2-5
Figure 2-6
Figure 2-7
Figure 2-8
Figure 2-9
Figure 2-10
Figure 2-11
3
Figure 3-1
Figure 3-2
Figure 3-3
Figure 3-4
Figure 3-5
Figure 3-6
Figure 3-7
4
Figure 4-1
Figure 4-2
Figure 4-3
Figure 4-4
Figure 4-5
Figure 4-6
Card Connections and Installation
Model 2000-SCAN-20 simplified schematic .........................
Card connectors ......................................................................
Input and output connector terminal identification ................
Connections for voltage scanning ..........................................
Typical connections for 2-wire resistance scanning ..............
Typical connections for 4-wire resistance scanning ............
Current shunt locations ........................................................
Current connections .............................................................
Card installation ...................................................................
2-pole output connections ....................................................
4-pole output connections ....................................................
Operation
2-wire resistance test connections ..........................................
4-wire resistance test connections ........................................
Connections for current measurements ................................
Path isolation resistance .......................................................
Voltage attenuation by path isolation resistance ..................
Power line ground loops .......................................................
Eliminating ground loops .....................................................
Service Information
Connections for path resistance checks ..................................
Connections for contact potential tests ..................................
Connections for same-channel isolation tests ........................
Connections for channel-to-channel isolation tests ................
Connections for HI and LO input-to-chassis ground
isolation tests ....................................................................
Block diagram ......................................................................
2-4
2-5
2-6
2-8
2-9
2-10
2-11
2-13
2-15
2-16
2-17
3-9
3-10
3-11
3-12
3-13
3-14
3-15
4-5
4-6
4-7
4-8
4-9
4-11