Keysight 34972A LXI Data Acquisition Switch Unit Mainframe


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The Keysight 34972A Data Acquisition / Data Logger Switch Unit consists of a 3-slot mainframe with a built-in 6 ½ digit DMM and 8 different switch & control modules. This product features built-in LAN and USB interfaces so you can easily connect to a PC or laptop without needing to purchase additional IO cards or converter interfaces.

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$2,787.00 tax excl.

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The intuitive graphical Web interface offers easy remote control over the network with per channel measurement configuration, data logging and data monitoring. With the 34972A, there is no computer required for field applications. Use a USB flash drive to upload data logging configurations from BenchLink Data Logger into the 34972A and to transfer large data sets back to the computer. Simply connect the USB stick to your PC when you return and easily import into a spreadsheet or other applications for data analysis.

The 34972A can accept any of the 34970A plug-in modules. With a simple address change the 34972A is easily integrated into an existing test with no wiring or hardware changes. The plug-in modules also feature on-board screw terminals and relay closure count so you can create a compact data logger, full-featured data acquisition system or low-cost switching unit that is easy to connect, configure and use on the bench, on a network or in field applications.

Keysight BenchLink Data Logger software is included with the 34970A. BenchLink Data Logger gives you a familiar Microsoft Windows® interface for test configuration and real-time data display and analysis. Setup and make measurements quickly, export data or use the built-in graphs to log your results.


  • 3-slot LXI data acquisition unit with 6 ½-digit DMM (22-bit) and 8 plug-in modules to choose from
  • Measures 11 different input signals including temperature with thermocouples, RTDs and thermistors; DC/AC volts or current; 2- or 4-wire resistance; frequency and period
  • Accepts all 34970A switch and control plug-in modules, and is backward compatible with the 34970A SCPI command set
  • 1Gbit LAN and USB 2.0 for easy connectivity to the PC
  • USB memory port for data storage or transfer
  • Graphical Web interface for easy set up and control
  • Free BenchLink data logger software to create tests without programming

Built-in signal conditioning to get your job done

Whether you need to measure temperature, ac/dc volts, resistance, frequency, or current, the 34970A/34972A can handle it. The internal autoranging DMM directly measures 11 different functions, eliminating the need for expensive external signal conditioning. And our unique design allows complete per channel configurability for maximum flexibility and quick, easy set up. It’s like having an independent, high-performance DMM behind each channel.

Standard connectivity to the PC

Whether you use GPIB, RS-232, LAN or USB interfaces, the 34970A/34972A family offers easy connection to the PC. The 34970A offers traditional GPIB and RS-232 interfaces. The 34972A has built-in Gigabit LAN and USB 2.0 so you can connect to a modern PC without having to purchase any GPIB cards, cables or converter boxes. With the standard LAN connections you also get the added benefit of a graphical Web interface for easy configuration of measurements and monitoring of results using a standard Web browser.

Convenient data storage with USB flash drive34970A Flash

The 34972A also features a built-in USB memory port so that you can use a USB flash drive to upload BenchLink Data Logger configurations into the 34972A and collect data without being connected to a PC.

Data can be logged directly to the USB flash drive, extending your instrument’s memory, or copied from internal memory for transfer to a computer in another location.



34970A and 34972A Keysight modules-at-a-glance selection guide

A complete selection of plug-in modules gives you high quality measurement, switching, and control capabilities to choose from. Modules include both low-frequency and RF multiplexers, a matrix switch, a general-purpose switch, and a multifunction module that includes digital input/output, analog output, and totalizer capabilities. You can mix and match modules to get just the functionality you need right now—then change or add more channels later as your application grows. Modules for the 34970A/34972A are designed to make your testing easier, faster, and more reliable.

Data Acquisition Modules

34901A     20 Channel Multiplexer (2/4-wire) Module for 34970A/34972A
2-wire armature (4-wire selectable)

34902A     16 Channel Multiplexer (2/4-wire) Module for 34970A/34972A
2-wire reed (4-wire selectable)

34903A     20 Channel Actuator/GP Switch Module for 34970A/34972A
SPDT/form C

34904A     4 x 8 Two-Wire Matrix Module for 34970A/34972A
2-wire armature

34905A     2 GHz Dual 1:4 RF Mux, 50 Ohm Module for 34970A/34972A
Common low (unterminated)

34906A     2 GHz Dual 1:4 RF Mux, 75 Ohm Module for 34970A/34972A
Common low (unterminated)

34907A     Multifunction Module for 34970A/34972A
Two 8-bit digital I/O ports; 26-bit event counter; Two 16-bit analog outputs

34908A     40 Channel Single-Ended Multiplexer Module for 34970A/34972A
1-wire armature (common low)