Table of Contents
1Test System Overview
Introduction ................................................................................ 1-2
Key features ........................................................................ 1-2
Technical terms ................................................................... 1-3
Model 2790 configurations ........................................................ 1-4
Test system ................................................................................. 1-5
Inflator tests ................................................................................ 1-6
Shunt bar test ....................................................................... 1-6
Bridgewire test .................................................................... 1-8
Insulation resistance (HIPOT) test (7751 and 7753 only) .. 1-9
2 Keithley 7751, 7752, and 7753 Switching Modules
Card configuration ...................................................................... 2-2
I-source – channels 21, 22, 24, and 27 ................................ 2-4
V-source and I/V amplifier (7751/7753 only) –
channels 21, 22, 23, 28 .................................................. 2-4
Cable discharge (7751/7753 only) – channel 20 ................. 2-4
Source readback – channels 13 and 25 ............................... 2-5
Interlock – J106 ................................................................... 2-5
General purpose terminal blocks – J105, J107, and J108 ... 2-5
Safety warnings ................................................................... 2-6
Setting source output levels ........................................................ 2-6
Remote programming ......................................................... 2-8
Math ........................................................................................... 2-9
Front panel operation ........................................................ 2-11
Remote programming ....................................................... 2-11
Opening and closing channels .................................................. 2-13
Front panel operation ........................................................ 2-13
Remote programming ....................................................... 2-14
Viewing closed channels .......................................................... 2-15
Open interlock errors ............................................................... 2-16
Cable discharge circuit (7751 and 7753) ................................. 2-17
Connection log ......................................................................... 2-19
Using memory patterns ............................................................ 2-20
Firmware revision level ..................................................... 2-20
Overview ........................................................................... 2-20
Front panel operation ........................................................ 2-20
Memory pattern commands .............................................. 2-21
Setting up and executing memory patterns ....................... 2-21
Memory pattern command options ................................... 2-22
Memory pattern scanning ................................................. 2-22
Memory pattern log ........................................................... 2-23