Keithley 6430

Remote PreAmp verification .................................................. 18-17
Connecting Remote PreAmp to the mainframe .............. 18-17
Remote PreAmp output voltage accuracy ....................... 18-18
Remote PreAmp voltage measurement accuracy ............ 18-19
Remote PreAmp output current accuracy ....................... 18-20
Remote PreAmp current measurement accuracy ............ 18-24
Remote PreAmp resistance measurement accuracy ........ 18-26
20 Ω -200M Ω range accuracy ........................................... 18-26
2G Ω -200G Ω range accuracy ........................................... 18-28
2T Ω and 20T Ω range accuracy ....................................... 18-30
19 Calibration
Introduction .............................................................................. 19-2
Environmental conditions ......................................................... 19-2
Temperature and relative humidity .................................... 19-2
Warm-up period ................................................................. 19-2
Line power ......................................................................... 19-2
Calibration considerations ........................................................ 19-3
Calibration cycle ................................................................ 19-3
Recommended calibration equipment ...................................... 19-4
Unlocking calibration ............................................................... 19-5
Mainframe calibration .............................................................. 19-6
Mainframe calibration menu ............................................. 19-6
Mainframe calibration procedure ...................................... 19-6
Remote PreAmp calibration ................................................... 19-14
Connecting Remote PreAmp to the mainframe .............. 19-14
Remote PreAmp calibration menu .................................. 19-14
Remote PreAmp calibration procedure ........................... 19-15
Changing the password ........................................................... 19-21
Resetting the calibration password .................................. 19-21
Viewing calibration dates and calibration count ..................... 19-22
20 Routine Maintenance
Introduction .............................................................................. 20-2
Line fuse replacement ............................................................... 20-2
Front panel tests ........................................................................ 20-3
KEYS test .......................................................................... 20-3
DISPLAY PATTERNS test ............................................... 20-4
CHAR SET test ................................................................. 20-4