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Keysight's new 34465A (6.5 digit) and 34470A (7.5 digit) bench multimeters

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kj7e:
IIRC, the free mem upgrade was prompted due to the revised max voltage spec (which was since rescinded).

djnz:
There is a new "Modification Recommended" service note which might be relevant for some members:

http://literature.cdn.keysight.com/litweb/pdf/34465A-02.pdf

It seems that if you do automated testing etc. there is a chance you may have already damaged your U507 and they will replace it, but otherwise, if it's not damaged already, a simple firmware upgrade is all that's needed.

Situation:
User may experience ACV out of specification when frequent function changing from other
measurement functions to ACV. This happens mostly during automated process causing the
component U507 to heat up and ACV measurement to drift out of specification.
This has been resolved in Firmware 2.17 and above.

TheSteve:
The service note actually applies to the entire series - 34460A, 34461A, 34465A and 34470A.

Dr. Frank:
That's an LM6172, a double, bipolar, high speed OpAmp.
http://www.ti.com/lit/ds/symlink/lm6172.pdf
Strange, that this device might fail this way (no latch-up to be expected).

Anyhow, thanks for this heads-up, I'll check that on my unit, although it's not very probable to happen in my case.

stainlessjimmy:
Hello,
this is my first post here, till now i was silent reader only :-)
I just wanted to let you know that Keysight has a new promotion from the beginning of september 2018 - anyone who get one of said DMMs (34465A or 34470A) will get memory option for free. So, it's back again.

Promotion code: 6.028

https://www.keysight.com/main/editorial.jspx?cc=DE&lc=ger&ckey=2990857&nid=-32051.1242959&id=2990857

Regards,
Dim

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