34420A Keysight 7½ digit Nanovoltmeter/Microohmmeter

The Keysight 34420A Nanovoltmeter / Microohmmeter (formerly Agilent) is a high-sensitivity multimeter optimized for performing low-level measurements. This digital ohmmeter combines low-noise voltage measurements with resistance and temperature measurement capabilities. 34420A Nanovoltmeter / Microohm allows for accurate, repeatable low-level measurements.

By using a combination of seven-and-a-half bit resolution, optional analog and digital filtering, basic DC voltage accuracy of 2 ppm over 24 hours, and a shielded copper pin connector, you'll get accurate, reliable, repeatable measurements. It sets a new standard for flexible and high-performance low-level measurements, and gives you accurate and repeatable measurements you can trust.

• Enables high-sensitivity DCV and resistance measurements with resolutions up to 100 pV and 100 nΩ

• Performs accurate temperature measurements to 0.003 ˚C using the standard platinum resistance thermometer (SPRT) probe

• Built-in low-noise 2-channel scanner for easy voltage comparisons

• Includes BenchVue software license to make it easier to connect and control instruments and automate test sequences

Built-in resistance and temperature measurement capabilities

The 34420A seven-and-a-half-digit multimeter combines a low-noise nanovoltage input circuit with a highly stable current source to make precise low-level resistance measurements. The cost and complexity are greatly reduced compared to using an external current source. It offers three resistance modes.

• Standard

• low power

• Voltage limiting mode for dry circuit testing

Bias compensation function to minimize the thermoelectric potential (EMF) and associated errors