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Keysight

34970 A

Keysight 34970 A family
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Keysight34970 A
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Performance

0.004% of reading + % of range[1]

Optics

6½ digits (22 bits)[1]

What it is

The Keysight 34970A is a data acquisition and switch unit for measurement, logging, and signal routing tasks.[3][1][2]

The Keysight 34970A uses a 3-slot mainframe with a built-in 6.5-digit digital multimeter and accepts plug-in switch and control modules.[1][2]

How it works

The Keysight 34970A combines an internal autoranging measurement engine with modular input and switching channels.[1][2]

The Keysight 34970A measures multiple signal types, including temperature, direct current voltage, alternating current voltage, resistance, frequency, period, and current.[1][2]

The Keysight 34970A supports per-channel configuration so different measurement functions can be assigned within the same scan sequence.[1][2]

Where it fits in the process flow

The Keysight 34970A fits in automated test, data logging, and switching roles where multiple signals must be measured or routed from a single instrument platform.[1][2]

The Keysight 34970A can serve as a data logger, a data acquisition front end, or a switch system depending on the installed modules and configuration.[2]

Applications

The Keysight 34970A is used for monitoring and characterization tasks, process troubleshooting, component inspection, benchtop testing, temperature profiling, and automated test.[2]

The Keysight 34970A is used with thermocouples, resistance temperature detectors, thermistors, voltage inputs, resistance measurements, frequency measurements, and current measurements.[1][2]

What do the numbers mean?

Power & electrical1

Measurement functions
11 input signals (including temperature, dc/ac volts, 2- and 4-wire resistance, frequency, period, dc/ac current)[1]
Accurate?

Optics & imaging2

Resolution
6½ digits (22 bits)[1]
Accurate?
Internal DMM resolution
6.5 digits (22 bits)[1]
Accurate?

Performance4

Basic DCV accuracy (1 year)
0.004% of reading + % of range[1]
Accurate?
Basic ACV accuracy (1 year)
0.06% of reading + % of range[2]
Accurate?
Basic resistance accuracy (1 year)
0.01% of reading + % of range[2]
Accurate?
Operating environment
0 to 55°C; full accuracy to 80% R.H. at 40°C[1]
Accurate?

Control & software1

Interfaces
GPIB, RS-232[1]
Accurate?

Dimensions & facilities1

Weight
3.6 kg (8.0 lbs)[1]
Accurate?

Configuration & options13

Scan rate
Up to 250 channels/second[1]
Accurate?
Number of module slots
3[1]
Accurate?
Number of plug-in modules supported
8[1]
Accurate?
Internal DMM type
Autoranging 6½ digit[1]
Accurate?
Non-volatile memory
50,000 readings[1]
Accurate?
Mainframe slots
3-slot mainframe[1]
Accurate?
Analog input functions
11 functions[1]
Accurate?
Connectivity
GPIB and RS-232[1]
Accurate?
Maximum single-ended channels
120[1]
Accurate?
Maximum matrix crosspoints
96[1]
Accurate?
Scan rate
up to 250 channels/sec[1]
Accurate?
Internal memory
50,000 readings[1]
Accurate?
Power consumption
12 W (25 VA peak)[1]
Accurate?

Vintage & configurations

Documented models & variants

DesignationGenerationVintageChangesSource
34972A——Replaces GPIB and RS-232 with Gigabit LAN and USB 2.0; includes graphical Web interface and USB memory port.assets.testequity.com[1]
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What does it need to run?

Site utility requirements, footprint, and infrastructure needed to install and operate this tool. Sourced from public records.

  • Measurement functions11 input signals (including temperature, dc/ac volts, 2- and 4-wire resistance, frequency, period, dc/ac current)[1]

Where are the manuals?

Generated from public-source data on file. Enter your email to access — nothing is published; details are routed privately.

Not publicly documented

Field notes

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Frequently asked questions

What is the resolution of the internal DMM?

The internal DMM has 6½ digits (22 bits) of resolution.[1][2]

What interfaces are available on the 34970A?

The 34970A has GPIB and RS-232 interfaces.[1][2]

What is the basic DC voltage accuracy?

Basic DC voltage accuracy is 0.004% of reading plus a percentage of range (1-year specification).[1][2]

How many slots does the mainframe have for plug-in modules?

The mainframe has three slots for plug-in modules.[1][2]

What is the maximum scan rate?

The scan rate is up to 250 channels per second.[1][2]

Not publicly documented

The following facts about the 34970 A are absent from this record as of this revision. First-hand knowledge or a citation closes a gap; every submission is reviewed before publication.

  • No publicly documented production dates or lifecycle milestones (introduction, end of production, EOL) for the 34970 A are on record.

    Answerable by: OEM historical records or a trade-press announcement

  • The control-system platform and OS era of the 34970 A are not on record.

    Answerable by: an engineer who operated it or OEM installation records

  • No publicly documented failure modes or field errata for the 34970 A are on record.

    Answerable by: a field service engineer, process engineer, or maintenance technician

  • The process node or technology generation of the 34970 A is not on record.

    Answerable by: an OEM datasheet or a fab qualification report

  • No publicly documented compatible parts, consumables, or accessories for the 34970 A are on record.

    Answerable by: an OEM parts catalog or a service engineer

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Sources & citations

Sources (3)Every fact above is drawn from these public sources
  1. [1]assets.testequity.com — assets.testequity.comassets.testequity.com
  2. [2]testequipment.center — testequipment.centertestequipment.center
  3. [3]Equipment inventory listing
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Last updated Oct 7, 2026.

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