Keithley 2700 User Manual

4-wire functions (paired channels) .................................................... 2-8
Controlling the system channel ......................................................... 2-9
Non-amp and non-measure switching modules .............................. 2-14
Multiple channel operation ..................................................................... 2-16
Controlling multiple channels ......................................................... 2-17
Multiple channel operation anomalies ............................................ 2-22
Dual independent multiplexers ........................................................ 2-24
Identifying installed modules and viewing closed channels .................. 2-28
CARD menu .................................................................................... 2-29
Switching module queries (remote operation) ................................ 2-31
Relay closure count ................................................................................ 2-32
Reading relay closure count ............................................................ 2-33
Setting count update interval ........................................................... 2-33
Model 7700 switching module ............................................................... 2-34
Switching module capabilities ........................................................ 2-34
Schematic diagram .......................................................................... 2-35
3 Basic DMM Operation
DMM measurement capabilities ............................................................... 3-2
High energy circuit safety precautions ..................................................... 3-3
Performance considerations ...................................................................... 3-4
Warm-up ............................................................................................ 3-4
Autozero ............................................................................................ 3-4
LSYNC (line cycle synchronization) ................................................ 3-5
Remote programming — autozero and LSYNC ............................... 3-6
Channel list parameter (<clist>) ............................................................... 3-6
Voltage measurements (DCV and ACV) .................................................. 3-7
DCV input divider ............................................................................. 3-7
Connections ....................................................................................... 3-8
Volts measurement procedure ......................................................... 3-11
AC voltage measurements and crest factor ..................................... 3-12
Low level considerations ................................................................. 3-15
Current measurements (DCI and ACI) ................................................... 3-17
Connections ..................................................................................... 3-17
Amps measurement procedure ........................................................ 3-18
AMPS fuse replacement (front panel AMPS input) ........................ 3-19
Resistance measurements (Ω2 and Ω4) .................................................. 3-20
Connections ..................................................................................... 3-20
Standard resistance measurements .................................................. 3-23
Offset-compensated ohms ............................................................... 3-24
Measurement methods ..................................................................... 3-25
4-wire common-side (CSID) ohms measurements (7701 module) . 3-32
Temperature measurements .................................................................... 3-33
Thermocouples ................................................................................ 3-33

Keithley 2700 Specifications

General

Type	Digital Multimeter
Measurement Functions	DC Voltage, AC Voltage, DC Current, AC Current, Resistance, Frequency, Temperature
DC Voltage Range	100 mV to 1000 V
AC Voltage Range	100 mV to 750 V
Frequency Range	3 Hz to 500 kHz
Temperature Range	-200°C to +1372°C
Display	Vacuum Fluorescent Display
Connectivity	IEEE-488, RS-232
Channels	10
Power Supply	100V to 240V AC, 45Hz to 66Hz
DC Current Range	10 µA to 3 A
AC Current Range	10 µA to 3 A
Temperature Measurement	Thermocouple, RTD