]34420A 纳伏表 / 微欧表，7.5 位_数字万用表_通用测试仪器_产品中心

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34420A 纳伏表 / 微欧表，7.5 位

产品描述：
Keysight 34420A 纳伏表 / 微欧表(原安捷伦)是一款高灵敏度万用表，专为执行低电平测量而优化。这款数字毫欧表将低噪声电压测量与电阻和温度测量功能融于一体。34420A纳伏表 / 微欧表可进行精确、可重复的低电平测量。通过结合使用七位半分辨率、可选的模拟和数字滤波、24 小时内基本直流电压精度为 2ppm，以及一个屏蔽式铜针连接器，您将会获得精确可靠、可重复的测量结果。它为灵活和高性能的低电平测量树立了新标准，并为您提供准确和可重复的测量，值得信赖。

产品特点产品参数相关产品

产品特点

可以进行高灵敏度 DCV 和电阻测量，分辨率达到 100 pV 和 100 nΩ
使用标配的铂电阻温度计（SPRT）探头执行准确的温度测量，准确度达到 0.003 ˚C

内置低噪声 2 通道扫描仪，可轻松进行电压比较

内置电阻和温度测量功能

34420A 七位半万用表将低噪声纳伏输入电路与高稳定度的电流源相结合，可进行精密的低电平电阻测量。与使用外部电流源相比，其成本和复杂性都大大降低。它提供了三种电阻模式：

标准
小功率
限压模式，适用于干电路测试

偏置补偿功能可最大限度地降低热电动势（EMF）和相关误差。

Take the Uncertainty Out of Your Low-Level 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 nano-Volt input circuits with a high-stability 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.

SPRT Measurements

Built-in ITS-90 conversion routines accept the calibration coefficients from your SPRT probe for direct temperature measurement and conversion. Thermocouples, thermistors, and RTDs are also supported.

Unequaled Versatility

The 34420A gives you the versatility to tackle your most challenging tasks, both on the benchtop and in your automated system. Standard features include RS-232 and GPIB interfaces, SCPI and Keithley 181 programming language, 1024-reading memory, scaling and statistics, and a chart recorder analog output.

Data capture simplified. Click. Capture. Done.

BenchVue software for the PC makes it simple to connect, control, capture, and view Keysight’s DMMs simultaneously with other Keysight bench instruments without additional programming.

• Visualize multiple measurements simultaneously

• Easily log data, screenshots, and system state

• Rapidly prototype custom test sequences

• Recall the past state of your bench to replicate the results

• Export measurement data in the desired format fast

• Quickly access manuals, drivers, FAQs, and videos

• Monitor and control bench from mobile devices

The Digital Multimeter App within BenchVue enables control of digital multimeters to visualize measurements and perform unrestricted data logging and statistical analysis.