Brochure
Introduction
The 34401A digital multimeter (DMM) is the industry standard. Its accuracy, ease of use, and exibility
have attracted users for more than two decades and its low cost of ownership and high quality have
helped it to be one of the most successful products in the history of Keysight Technologies, Inc. Many
engineers do not even evaluate other DMMs when they want to order one; they know the 34401A will
work for them. It is an essential meter for bench and automated test applications.
The 34461A DMM is the next-generation 34401A. This new DMM was designed by the same group as
the 34401A, with many of the same R&D engineers participating. With this continuity of experience
and expertise, Keysight has made a DMM that is a virtual drop-in replacement for the 34401A and
offers improved usability and measurement technology. The Truevolt Series DMM’s graphic capa-
bilities such as trend and histogram charts offer more insights quickly.
Compatibility
There are many factors to keep in mind when you want to replace reliable instruments such as
the 34401A. Here are just some of the areas where the 34461A is equivalent to the 34401A.
– Functions and ranges: The 34461A is a superset of the 34401A capability.
Differences are listed below.
– Measurement accuracy and resolution: The 34461A’s specications and typical characteristics
are as accurate or better than those of the 34401A. See Table 1. All specications are
ISO17025 compliant.
– SCPI compatibility: We have taken extra care to ensure that the 34461A will work with SCPI
programs that were written for the Keysight 34401A. Programming considerations and
differences are listed below.
– Mechanical size: Height and width dimensions are the same.
– Accessories: Rack mount kits and probe accessories are compatible with both products.
– Manufacturing: Both DMMs are produced to the same rigorous quality standards and
manufacturing process controls.
– Service and support from Keysight: Our international team is available to help you calibrate
your DMM or answer any questions about either instrument.
– Warranty: Both the 34401A and 34461A offer the same outstanding 3-year standard warranty.