Keithley 7071 Instruction Manual page 12

List of Illustrations
SECTION
2-Operation
2-l MatrixCard Installation
........................................................................
2-3
2-2 CableClamp Assembly ......................................................................... 2-4
2-3
Simplified Schematic of Model 7071 ............................................................. 2-5
2-4 Single-Ended Switching Example (Guard Used as Shield) ......................................... 2-6
2-5
Differential Switching Example (Shielded) ........................................................ 2-7
2-6
Driven Guard Example (Shielded) ............................................................... 2-7
2-7
SensingExample(Shielded) .................................................................... 2-8
2-8
Connections Using two Model 70%MTC
Cables .................................................
2-11
2-9 Connecting PlugtoRectacle .................................................................... 2-U
2-m Receptacle Contact Assignments
................................................................
2-U
2-u
Connections Using One Model 7078-MTC Cable Cut in Half ...................................... 2-14
2-w. TerminalBlock Connections
....................................................................
2-15
2-u CablePreparation
.............................................................................
2-16
2-14 Connecting
Beldon 9734 Cable to Receptacle ..................................................... 2-V
2-15
Cable Positions ...............................................................................
2-V
2-16
Narrow Matrix Example (8 x 36) (Backplane Jumpers Not Removed) .............................. 2-18
2-v
Two 8 x 36 Matrices Using Six Model 7071s. .................................................... 2-19
2-18
Wide Matrix Example (16 x 24) ................................................................ 2-20
2-19
Partial Matrix Expansion
(16 x 24). .............................................................
2-21
2-20
Single Card System Example. ..................................................................
2-22
2-21
MultipleCard SystemExample ................................................................. 2-23
2-23 Plug Contact Assignments
.....................................................................
2-25
2-22
Multiple Mainframe Example
..................................................................
2-24
SECTION
3-Applications
3-l
Thick Film Resistor Network
Testing ............................................................. 3-l
3-2 4TerminalOhmsMeasurements
................................................................. 3-2
3-3 Voltage Divider Checks .........................................................................
3-4
3-4
Current Chunt Checks.. .......................................................................
3-6
3-5 Transistor Testing ..............................................................................
3-7
3-6
Transistor Current
Gain Checks .................................................................
3-8
3-7
Common-Emmitter Characteristics of an NPN Silicon Transistor.
...................................
3-9
El
Transistor IE Measurements
....................................................................
510
Transistor VgE Measurements.
..................................................................
3-11
SECTION
4-Service Information
41
Relay Test Setup ...............................................................................
42
42
PathResistanceTesting .........................................................................
44
43
Differential
Offset Current Testing ............................................................... 46
4-4
Common Mode Offset Current Testing ........................................................... 4-7
45
Contact Potential Testing ........................................................................ 48
46 Path Isolation Testing (Guarded).
...............................................................
410
47
Differential Isolation
Testing .................................................................... 4-U
48
Common Mode Isolation Testing
............................................................... 4-U
49 IDD~
Tuning Diagram .......................................................................
414
410
Receptacle Contact Identification
................................................................
416
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