Keithley 3721 Data Sheet

Keithley

Table of Contents

Series 3700 System Switch/Multimeter Reference Manual

viii

3700S-901-01 Rev. C / July 2008

Verification ............................................................................................................................... 14-1

Introduction ........................................................................................................................................ 14-1

Verification test requirements ............................................................................................................ 14-2

Environmental conditions ........................................................................................................................... 14-2

Warmup period .......................................................................................................................................... 14-2

Line power ................................................................................................................................................. 14-3

Recommended test equipment .................................................................................................................. 14-3

Verification limits ........................................................................................................................................ 14-4

Restoring factory defaults .......................................................................................................................... 14-5

Performing the verification test procedures ....................................................................................... 14-5

Test summary ............................................................................................................................................ 14-5

Test considerations .................................................................................................................................... 14-6

Series 3700 verification tests ............................................................................................................ 14-6

Verifying DC voltage .................................................................................................................................. 14-6

Verifying AC voltage................................................................................................................................... 14-9

Verifying DC current 10µA to 100µA ranges ............................................................................................ 14-11

Verifying DC current 1mA to 3A ranges ................................................................................................... 14-13

Verifying AC current 1mA to 3A ranges ................................................................................................... 14-15

Verifying frequency .................................................................................................................................. 14-18

Verifying 4-wire resistance ....................................................................................................................... 14-19

Verifying 2-wire resistance ....................................................................................................................... 14-21

Verifying dry circuit resistance ................................................................................................................. 14-22

Verifying 1-OHM and 10-OHM resistance ranges .................................................................................... 14-24

Verifying zeros using a 4-wire short ......................................................................................................... 14-25

Calibration ............................................................................................................................... 15-1

Overview ............................................................................................................................................ 15-1

Environmental conditions .................................................................................................................. 15-2

Warmup period .......................................................................................................................................... 15-2

Line power ................................................................................................................................................. 15-2

Calibration considerations ................................................................................................................. 15-3

Calibration cycle ......................................................................................................................................... 15-3

Recommended equipment ......................................................................................................................... 15-3

Calibration ......................................................................................................................................... 15-4

Remote calibration procedure ........................................................................................................... 15-5

DC volts calibration .................................................................................................................................... 15-6

Resistance calibration ................................................................................................................................ 15-8

DC current calibration ................................................................................................................................ 15-9

AC volts calibration .................................................................................................................................. 15-11

AC current calibration............................................................................................................................... 15-13

Frequency calibration ............................................................................................................................... 15-15

Save calibration ....................................................................................................................................... 15-16