List of Illustrations
1Test System Overview
Figure 1-1 System connections ............................................................... 1-5
Figure 1-2 Shunt bar testing .................................................................... 1-7
Figure 1-3 Bridgewire testing .................................................................. 1-8
Figure 1-4 HIPOT testing (7751/7753) ................................................... 1-9
2 Keithley 7751, 7752, and 7753 Switching Modules
Figure 2-1 Simplified schematic of Keithley 7751, 7752, and 7753
switching modules ............................................................ 2-3
Figure 2-2 Setting I-source and V-source output levels ........................... 2-7
Figure 2-3 Enabling ohms math function .............................................. 2-11
Figure 2-4 Opening and closing channels ............................................. 2-14
Figure 2-5 Viewing closed channels ...................................................... 2-15
Figure 2-6 Cable discharge circuit ......................................................... 2-18
3 Keithley 7702 Switching Module
Figure 3-1 Simplified schematic of Keithley 7702 switching module .... 3-4
Figure 3-2
Ω
2 and thermistor TEMP connections .................................. 3-5
Figure 3-3
Ω
4 and RTD TEMP connections ........................................... 3-6
Figure 3-4 Current connections (DCI and ACI) ...................................... 3-6
Figure 3-5 Voltage connections (DCV or ACV) ...................................... 3-7
Figure 3-6 andkeys ................................................................................ 3-10
Figure 3-7 CLOSE key .......................................................................... 3-10
Figure 3-8 OPEN key ............................................................................ 3-11
Figure 3-9 Viewing closed channels ...................................................... 3-12
Figure 3-10 Using 7751/7753 V-source with 7702 module
(dual multiplexer) ........................................................... 3-14
4 Switching Module Wiring and Installation
Figure 4-1 Screw terminal access ............................................................ 4-3
Figure 4-2 Model 7751/7752/7753 screw terminal channel designations 4-5
Figure 4-3 Model 7702 screw terminal channel designations ................. 4-6
Figure 4-4 Wire dressing (7751/7752/7753) ........................................... 4-7
Figure 4-5 Zippertubing® shield (ZTZ-*-SH3 series) ............................ 4-8
Figure 4-6 Installed Zippertubing® shield .............................................. 4-9