Keysight-Agilent 34420A

Keysight-Agilent 34420A

•7 1/2 digits resolution
•100pv/100 nΩ sensitivity
•1.3 nVrms /8 nVpp noise performance
•Built-in low noise 2 channel scanner
•Direct SPRT, RTD, Thermistor, and Thermocouple measurements nanovolt performance at a Microvolt Price
The Agilent Technologies 34420A nanoVolt/micro-Ohm meter is a high-sensitivity multimeter optimized
for performing low-level measurements. It combines low-noise voltage measurements with resistance and
temperature functions, setting a new standard in low-level flexibility and performance.

Take the Uncertainty Out of Your LowLevel Measurements Low-noise input amplifiers and a highly tuned input protection scheme bring reading noise down to 8 nVpp. Combine this with
71/2 digits of resolution, selectable analog and digital filtering, 2 ppm basic 24-hour dcV accuracy, and a
shielded, copper pin connector and you’ve got accurate, repeatable measurements you can count on.
Two Input Channels An integral two-channel programmable scanner simplifies voltage comparisons.
Built-in ratio and difference functions enable automated two channel measurements without the need for an external nanoVolt scanner.

Both channels share the same low noise specifications to ensure accurate comparisons.
Built-In Resistance and Temperature
The 34420A combines its low-noise nanoVolt input circuits with a highstability current source to provide precise low-level resistance measurements – no more hassling with the cost and complexity of an external
current source. Three resistance modes are included:
•Standard
•Low-power
•Voltage-limited for dry-circuit testing
Offset compensation is also provided to minimize thermal EMFs and associated errors.

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