Technical Support: 34901A 20 Channel Multiplexer (2/4-wire) Module for 34970A/34972A

Product Status:	Currently Orderable \| Currently Supported

Where can I find manuals for discontinued and obsolete Hewlett-Packard and Agilent test equipment? Most Agilent products have PDF manuals that can be found on product pages. Other vendors also supply old manuals. FAQ 2011-07-13
Agilent 34970A FAQ archive More than 100 FAQs regarding the 34970A data acquisition/switch unit FAQ 2010-06-07
How Do I Measure Resistance With A 3-Wire Device? If you are using a 3-wire device (ie. 3-wire RTD), to measure it accurately, you have to first measure the resistance of R1+R2+Rm then subtract the resistance you measured of R2+R3. FAQ 2009-09-28
Can I remove a 100V or above common mode voltage when making thermocouple measurements using the 34970A? Yes, for less than 300V peak by setting the internal DMM's integration time to a value of 1 or larger number of power line cycles. FAQ 2006-11-15
Why I am getting incorrect results when measuring the temperature of a switch with the 34901A? If you are doing thermocouple measurements with an AC signal, you need expect noise in the readings. You can reduce this noise by applying the common mode noise rejection. FAQ 2006-09-04
34980A Downloads Direct access to BenchLink software, IntuiLink, example programs as well as 34980A firmware downloads. FAQ 2006-09-01

Technical Support