Keithley DMM6500 Calibration Manual

Introduction ................................................................................................................. 1-1
Welcome .............................................................................................................................. 1-1
Introduction to this manual ................................................................................................... 1-1
Extended warranty ............................................................................................................... 1-1
Contact information .............................................................................................................. 1-2
Performance verification ............................................................................................ 2-1
Introduction .......................................................................................................................... 2-1
Verification test requirements .............................................................................................. 2-2
Environmental conditions .......................................................................................................... 2-2
Warmup period .......................................................................................................................... 2-2
Line power................................................................................................................................. 2-2
Recommended test equipment ................................................................................................. 2-3
Calibration verification limits ................................................................................................ 2-3
Example reading limit calculation .............................................................................................. 2-4
Calculating resistance reading limits ......................................................................................... 2-4
Performing the verification test procedures ......................................................................... 2-4
Test summary ........................................................................................................................... 2-5
Test considerations ................................................................................................................... 2-5
Front-panel calibration verification ....................................................................................... 2-6
DC voltage verification .............................................................................................................. 2-6
AC voltage verification .............................................................................................................. 2-8
Digitize voltage verification ...................................................................................................... 2-12
Frequency verification ............................................................................................................. 2-14
Simulated thermocouple Type J temperature verification ....................................................... 2-15
Simulated RTD temperature verification ................................................................................. 2-17
Resistance verification ............................................................................................................ 2-20
DC current verification ............................................................................................................. 2-24
Digitize current verification ...................................................................................................... 2-28
AC current verification ............................................................................................................. 2-30
Capacitance verification .......................................................................................................... 2-33
Verifying zero values using a 4-wire short ............................................................................... 2-35
Rear-panel verification ....................................................................................................... 2-37
DC current 10 A range verification .......................................................................................... 2-37
Digitize current 10 A range verification .................................................................................... 2-39
AC current 10 A verification..................................................................................................... 2-40
Adjustment .................................................................................................................. 3-1
Introduction .......................................................................................................................... 3-1
Environmental conditions ..................................................................................................... 3-1
Temperature and relative humidity ............................................................................................ 3-2
Line power................................................................................................................................. 3-2
Warmup period ..................................................................................................................... 3-2
Adjustment overview ............................................................................................................ 3-2
Recommended test equipment ............................................................................................ 3-3
Table of contents

Keithley DMM6500 Specifications

General

Resolution	6.5 digits
DC Voltage Range	100 mV to 1000 V
AC Voltage Range	100 mV to 750 V
DC Current Range	10 µA to 10 A
AC Current Range	10 µA to 10 A
Temperature Range	-200 °C to 1820 °C
Display	5-inch capacitive touch screen
Resistance Range	100 MΩ
Frequency Range	3 Hz
Sampling Rate	1 MS/s
Connectivity	USB, LAN, GPIB (optional), TSP-Link
Memory	7 million readings