Keysight 34420A Nano-Volt and Micro-Ohm Meter
Note: The Keysight micro-ohm meter 34420A has been redesigned to meet RoHS-compliance. The new, RoHS-compliant version is available from 1st June 2021. The redesigned 34420A provides the same product performance and specifications, and is 100% code compatible with the previous product versions.
Benefits of the Keysight 34420A Precision Multimeter for Nanovolt and Microohm Ranges
- High-sensitivity multimeter for low-level measurements - nano-Volt, mikro-Ohm.
- 7½ digit resolution.
- GPIB and RS232.
Keysight 34420A Nano-Volt and Micro-Ohm Meter
The Keysight 34420A nano-Volt, 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.
- 7½ digit resolution.
- High sensitivity DCV and resistance measurements at 100 pV and 100 nΩ.
- 1.3 nVRMS, 8 nVpp noise performance.
- Built-in low noise 2 channel scanners.
- Direct SPRT, RTD, thermistor, and thermocouple temperature measurements with 0.003°C accuracy.
- 3 low power, dry circuit testing built-in resistance functions.
- GPIB and RS232 interface.
Model Overview
| Model | Keysight 34420A |
| Digits resolution | Max. 7½ digit |
| Measurement functions and ranges | DC voltage: 1.0000000, 10.000000, 100.00000 mV, 1.0000000, 10.000000, 100.00000 V Resistance (test-current): 1.0000000 Ω (10 mA), 10.000000 Ω (10 mA), 100.00000 Ω (10 mA), 1.0000000 kΩ (1 mA), 10.000000 kΩ (100 µA), 100.00000 kΩ (5 µA), 1.0000000 MΩ (10 µA) Low power resistance (test current): 1.0000000 Ω (10 mA), 10.000000 Ω (10 mA), 100.00000 Ω (1 mA), 1.0000000 kΩ (100 µA), 10.000000 kΩ (10 µA), 100.00000 kΩ (5 µA), 1.0000000 MΩ (5 µA) Voltage limited resistance (test voltage): 10.000000 Ω (1 mA), 100.00000 Ω (100 µA) Temperature (resolution = 0.001°C): SPRT, RTD, thermistor, thermocouple |
| Measurement method | DC voltage: Continuously integrating multi-slope III A/D converter Resistance: Selectable 4-wire or 2-wire ohms; current source referenced to channel 1 LO input Temperature: SPRT (ITS-90 calibrated temperature with the range of –190...+660°C), RTD (type α = 0.00385 and α = 0.00392. R0 from 4.9 Ω to 2.1 kΩ. ITS-90 (IEC-751) Callendar Van Dusen conversion), thermistor (5 kΩ), thermocouple (ITS-90 conversions of type J, K, T, R, S, B, N) |
| CMRR | DC: 140 dB, AC: 70 dB |
| System speeds | Configuration rates 26/s to 50/s; autorange rate (Volt) >30/s; ASCII reading to RS232 55/s; ASCII reading to GPIB 250/s; max. internal trigger rate 250/s; max. external trigger rate to memory 250/s |
| Memory | 1024 readings |
| Interfaces | RS232, GPIB/IEEE488, SCPI compliant |
| Safety | Designed to CSA, UL-1244, IEC-1010. RFI and ESD: CISPR 11 |
| Dimensions (mm) | 254 x 374 x 104; 3 kg |
Including: 34420A, low thermal input cable (34102A), low thermal shorting plug (34103A), Kelvin clip set (11062A), calibration certificate, power cord. Also includes CD with: IntuiLink software, IVI and VXI PnP drivers, user’s guide, service guide, and data sheet.
Agilent’s Electronic Measurement Group is now Keysight Technologies.
Information on product safety:
Manufacturer:
Keysight, 1400 Fountaingrove Parkway, Santa Rosa, CA/USA
www.keysight.com
(Keysight Technologies Deutschland GmbH)
