Agilent

34401 A Multimeter

Research Quality: 30% complete

Provisional entry — research in progress

This page was generated automatically from cited public sources and hasn't completed the full research pass yet. Every specification shown carries its source; more detail is added as research completes.

34401 A Multimeter — Inventory photo — Fig. 0134401 A MultimeterInventory photo^[1]

What is it?

The Agilent 34401A is a multimeter with versions described as 6.5-digit bench multimeters and standard RS-232 and GPIB interfaces.

What do the numbers mean?

Power & electrical3

~ Line: 45 - 440 Hz, 25va Max^[1]
Voltage Selector Positions: 100 / 120 / 220 / 240 V~^[1]
Fuse: 250v, 250ma^[1]

Vintage & configurations

Documented models & variants

Designation	Generation	Vintage	Changes	Source
Agilent/ HP 34401A Multimeter 6.5 Digit	—	—	Described as a 6.5-digit multimeter.	calright.com^[2]
AGILENT/HP 34401A 6 1/2 DIGIT MULTIMETER	—	—	Described as a 6 1/2 digit multimeter.	microprecision.com^[3]

Interested in this tool?

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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.

~ Line45 - 440 Hz, 25va Max^[1]
Voltage Selector Positions100 / 120 / 220 / 240 V~^[1]
Fuse250v, 250ma^[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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Not publicly documented

The following facts about the 34401 A Multimeter 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 34401 A Multimeter are on record.
Answerable by: OEM historical records or a trade-press announcement
The control-system platform and OS era of the 34401 A Multimeter 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 34401 A Multimeter are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
The process node or technology generation of the 34401 A Multimeter is not on record.
Answerable by: an OEM datasheet or a fab qualification report
No publicly documented compatible parts, consumables, or accessories for the 34401 A Multimeter are on record.
Answerable by: an OEM parts catalog or a service engineer

No research found yet — worked with this tool? Share what you know.

Sources & citations

Sources (4)Every fact above is drawn from these public sources

[1]Inventory photo
[2]calright.com — calright.comcalright.com
[3]microprecision.com — microprecision.commicroprecision.com
[4]Reading signal from agilent 34401 A multimeter and printing on the serial - General Guidance - Arduino Forum — forum.arduino.ccforum.arduino.cc