Keithley 6514

Table of Contents
1 Getting Started
General information ................................................................... 1-2
Warranty information .......................................................... 1-2
Contact information ............................................................ 1-2
Safety symbols and terms ................................................... 1-2
Inspection ............................................................................ 1-2
Options and accessories ...................................................... 1-3
System electrometer features ..................................................... 1-4
Front and rear panel familiarization ........................................... 1-5
Front panel summary .......................................................... 1-5
Rear panel summary ........................................................... 1-8
Power-up .................................................................................. 1-10
Line power connection ...................................................... 1-10
Line frequency selection ................................................... 1-10
Power-up sequence ........................................................... 1-11
Display ..................................................................................... 1-12
Status and error messages ................................................. 1-12
Default settings ......................................................................... 1-12
SCPI programming .................................................................. 1-15
2 Measurement Concepts
Measurement overview .............................................................. 2-2
Performance considerations ....................................................... 2-2
Warm-up period .................................................................. 2-2
Autozero .............................................................................. 2-2
Connection fundamentals ........................................................... 2-3
Input connector ................................................................... 2-3
Low noise input cables ........................................................ 2-5
Basic connections to DUT .................................................. 2-6
Test fixture .......................................................................... 2-9
Input protection ................................................................. 2-11
Floating measurements ..................................................... 2-11
Zero check and zero correct ..................................................... 2-13
Zero check ......................................................................... 2-13
Zero correct ....................................................................... 2-14
SCPI programming — zero check and zero correct ......... 2-15
Input bias current and offset voltage calibration ...................... 2-17
Front panel ........................................................................ 2-17
SCPI programming ........................................................... 2-18
Measurement considerations .................................................... 2-19