The Keysight DAQ970A/DAQ973A is a 3-slot data acquisition system built around an internal 6½-digit DMM derived from Keysight's benchtop DMM measurement engine. It combines universal inputs with built-in signal conditioning and modular switch, RF, and control plug-in modules in a compact mainframe. The system bridges two roles that previously required separate instruments: the simple operation and low per-channel cost of a data logger, and the flexibility and higher performance of a modular data acquisition front end.

The system is designed for both data logging and automated test. Listed data logging and monitoring applications include environmental chamber monitoring, component inspection, benchtop testing, process troubleshooting, and temperature profiling — monitoring multiple signals such as temperature and voltage over extended periods to identify irregularities. As a data acquisition front end it serves R&D engineers characterizing a design and manufacturing engineers building test systems. The single-ended multiplexer module is called out for battery test, component characterization, and benchtop testing.

Brand Heritage

Keysight Technologies traces its measurement heritage through Hewlett-Packard, whose test and measurement business was spun off as Agilent Technologies in 1999. In 2014, Agilent's electronic measurement division was separated to form Keysight Technologies, the manufacturer under which this product line is offered today.

Compare Other Models in This Series

The DAQ970A/DAQ973A family consists of two 3-slot data acquisition mainframes that share the same internal 6½-digit DMM, the same nine plug-in modules, the same 4.3-inch color display, and the same 1-million-reading nonvolatile memory. Both deliver 0.003% basic 1-year DC voltage accuracy and scan rates up to 450 channels/sec, and both are code compatible with the 34970A/34972A.

The two mainframes differ primarily in their built-in computer interfaces. The DAQ970A provides USB and LAN; the DAQ973A provides USB, LAN, and an additional built-in GPIB interface. Both ship with BenchVue DAQ software and the graphical Web interface for remote configuration and monitoring.

Each new model linked below is its own dedicated product page with condition-matched pricing. Select the mainframe whose interface set matches your test system, then choose the condition that fits your budget and documentation requirements.

The DAQ970A is the primary mainframe in this family, providing Gigabit LAN and USB 2.0 connectivity along with the graphical Web interface for browser-based configuration, scan execution, and monitoring over a network.

The defining difference between the two mainframes is the GPIB (IEEE-488) interface, which is built into the DAQ973A only; both share LAN and USB. For applications integrating into legacy GPIB-based automated test environments, the DAQ973A adds that interface without changing the measurement engine.

Both mainframes use the same internal DMM and accept the same nine modules — from the DAQM900A solid-state and DAQM901A armature multiplexers to the DAQM909A 4-channel digitizer — so channel count, switching topology, and measurement functions are determined by module choice rather than by mainframe. See the comparison table for the per-model interface and scanning-rate details.

Additional differences in specifications beyond the few shown above are not listed here — see each model's full specifications below.

Product Core & Specifications

Important: Internal DMM input section provides up to 300 V of input isolation; DMM input protection is 300 V on all ranges.

Important: The internal DMM connections are accessible only through the DAQM900A, DAQM901A, DAQM902A, and DAQM908A low-frequency multiplexer modules.

Important: Up to three modules, in any combination, can be inserted into a single mainframe; the DMM is installed inside the chassis, leaving all three slots free for switch and control modules.

Important: On the DAQM902A, user-provided shunt resistors are required for current measurements.

Important: Thermocouple probes, RTDs, thermistors and Kelvin clips are ordered separately (see Accessories — e.g., 11062A Kelvin clip set, 34307A J-type thermocouples, 34308A 10 kΩ thermistors) and are not included with the mainframe.

Important: On-module screw terminals accept wire sizes from 16-gage to 22-gage; 20-gage wire is recommended for high channel count applications.

Recommended pairing: the 34307A 10-pack of J-type thermocouples and 34308A 5-pack of 10 kΩ thermistors listed in the ordering information support multi-channel temperature scanning setups.

ValueTronics supplies both new and used test and measurement equipment. New units ship factory-sealed, exactly as received from the manufacturer; every used unit is inspected and functionally verified in-house at our 20,000 sq ft secure facility in Elgin, Illinois before it ships. Our Test Architects can help you select the condition, calibration, and configuration that fit your application.

Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.