Keysight 34420A Service Manual page 8

The 34420A is a 71/2 digit, high performance nanovolt, micro-ohm meter. Its
combination of bench-top and system features makes this meter a versatile
solution for your testing requirements now and in the future.
Convenient bench-top features
– Built-in math operations including thermistor, thermocouple and RTD
– Two channel input allows ratio and difference functions for voltage
– Highly visible vacuum-fluorescent display
– Portable, ruggedized case with non-skid feet
Flexible system features
– GPIB (IEEE-488) interface and RS-232 interface are standard
– SCPI (Standard Commands for Programmable Instruments) and Keithley 181
– Readings at up to 250 per second
Keysight 34420A Service Guide
temperature measurements
measurements
compatibility
7