« previous next »
Pages: [1]   Go Down

Author Topic: Keysight 34465A in black  (Read 4497 times)

0 Members and 1 Guest are viewing this topic.

Offline manupthehillsTopic starter

  • Contributor
  • Posts: 40
  • Country: us
Keysight 34465A in black
« on: December 29, 2020, 08:01:39 pm »
Just got a new 34465A in my lab and, besides different plastic colors, it also has some internal differences to respect what I can see in the pictures available online.
Just curious if anyone has some insights about what changed in the "black" versions.  :)

Well, had to replace the fan, that one is still the same whiny one anyone owning one of these DMMs is used to. Now is not dead silent, but at least it cut the noise in a half.  :P
« Last Edit: December 29, 2020, 08:13:14 pm by manupthehills »
Logged
 
The following users thanked this post: rsjsouza, Dr. Frank, msliva, coromonadalix, eplpwr, Traceless

Offline razvan784

  • Regular Contributor
  • *
  • Posts: 90
  • Country: ro
Re: Keysight 34465A in black
« Reply #1 on: December 31, 2020, 03:10:10 pm »
Woo, a modboard, nice! :D :P

I see they replaced the obsolete LM3 micro with the currently supported TM4C. :-+
Logged
 

Offline Dr. Frank

  • Super Contributor
  • ***
  • Posts: 2384
  • Country: de
Re: Keysight 34465A in black
« Reply #2 on: December 31, 2020, 08:12:06 pm »
is it still running on WIN CE, or does it boot faster now?
The additional board looks like some protection structures.
Thanks for showing, maybe you can make pictures from the whole Mainboard w/o shield
Frank
Logged
 

Offline nctnico

  • Super Contributor
  • ***
  • Posts: 26906
  • Country: nl
    • NCT Developments
Re: Keysight 34465A in black
« Reply #3 on: December 31, 2020, 08:47:22 pm »
Which Noctua fan did you use? I replaced the fan in my 34461A with a Noctua fan (5V IIRC) and it makes exactly the same whining sound  :-BROKE
Logged
There are small lies, big lies and then there is what is on the screen of your oscilloscope.
 

Offline manupthehillsTopic starter

  • Contributor
  • Posts: 40
  • Country: us
Re: Keysight 34465A in black
« Reply #4 on: January 02, 2021, 01:37:20 am »
Still Windows based, 25 seconds to boot up from standby.
The main PCB is marked 34460-26541 rev 001, maybe they unified the whole DMM family into using one PCB with different components, adding the small PCBA on the bottom for some versions.
Removing the shields would compromise the calibration, not planning to take more pictures for the moment.

The fan I used is a Noctua NF-A4x10 5V (4500 RPM, 3 pin connector). It's kept in place by the provided rubber mounts that leave a small gap between the metal deflector and the chassis (the fan and the deflector are in direct contact, but the fan has small rubber feet that provide some kind of mechanical isolation). Noctua has a 40x20mm model that should be slightly less noisy, but I didn't feel like experimenting with a potential different air flow inside the instrument.
I have a hard wall 4" behind the instrument reflecting the noise, so the difference with the original fan is not huge; the noise pitch is similar, just a bit quieter, I'd say a half
Logged
 
The following users thanked this post: nctnico, Dr. Frank

Offline PushUp

  • Regular Contributor
  • *
  • Posts: 173
  • Country: de
Re: Keysight 34465A in black
« Reply #5 on: January 02, 2021, 06:40:53 pm »
As Keysight doesn't offer pix in black on their HP yet,...



https://www.keysight.com/en/pdx-2891457-pn-34465A/digital-multimeter-6-digit-truevolt-dmm?cc=GB&lc=eng

...it would be nice to see some from the outer design as well, before you put it into your rack.


ThanX!  :)
Logged
 

Offline JDubU

  • Frequent Contributor
  • **
  • Posts: 441
  • Country: us
Re: Keysight 34465A in black
« Reply #6 on: January 02, 2021, 07:01:24 pm »
Logged
 

Offline HighVoltage

  • Super Contributor
  • ***
  • Posts: 5473
  • Country: de
Re: Keysight 34465A in black
« Reply #7 on: January 03, 2021, 11:00:51 am »
Thank you for sharing the pictures from the inside.
Here are some pictures from the outside.

It would be nice to have a full PCB picture in the future.

Can you make a screenshot from the info (about) screen?



« Last Edit: January 03, 2021, 02:46:40 pm by HighVoltage »
Logged
There are 3 kinds of people in this world, those who can count and those who can not.
 

Offline Messtechniker

  • Frequent Contributor
  • **
  • Posts: 782
  • Country: de
  • Old analog audio hand - No voodoo.
Re: Keysight 34465A in black
« Reply #8 on: January 03, 2021, 02:06:49 pm »
Did this Noctua thing on my 34465A a while ago. Was a NF-A4x10 5V. Some insights here:
https://www.eevblog.com/forum/testgear/keysight-34461a-fan-noise/msg2843508/#msg2843508

Logged
Agilent 34465A, Siglent SDG 2042X, Hameg HMO1022, R&S HMC 8043, Peaktech 2025A, Voltcraft VC 940, M-Audio Audiophile 192, R&S Psophometer UPGR, 3 Transistor Testers, DL4JAL Transistor Curve Tracer, UT622E LCR meter
 

Offline manupthehillsTopic starter

  • Contributor
  • Posts: 40
  • Country: us
Re: Keysight 34465A in black
« Reply #9 on: January 03, 2021, 05:47:48 pm »
Here the picture of the "about" screen

- Thanks Messtechniker, I read about your experiments even before getting the instrument  :)
Logged
 
The following users thanked this post: Dr. Frank, HighVoltage

Offline Dr. Frank

  • Super Contributor
  • ***
  • Posts: 2384
  • Country: de
Re: Keysight 34465A in black
« Reply #10 on: January 04, 2021, 04:06:44 pm »
Hello,

this additional PCB on the bottom side contains a protection structure, I think for the DCV path, which was before assembled on the top side of the 34465A main board.
The previous 34460 main board seemed to be in most parts identical to the latter one, only that some components were not assembled (see review activities when Dave initially made a teardown of the 34470A in 2015).

In this security bulletin: https://www.keysight.com/upload/cmc_upload/All/Truevolt_DMM_Product_Declassification_Security.pdf
it's mentioned on the last page, that  Microsoft Windows® CE 6.0 R3  is used inside these instruments.
Support by MS was already finished in about 2018, and EOL is announced probably for next year, like CE 5.0, but I found no official statement yet.
That means, that any time soon, KS will not be allowed to sell new devices with these old O.S.

I doubt, that KS in between was able to move to direct successor O.S. like Windows Embedded 8 or 8.1, if that would physically possible, actually.

Rumors that KS is already in preparation for a new O.S. were already expressed, I think on our MM 2019.

Hopefully they get this done in time, as I assume that the whole line of TrueVolt instruments, like also Generators, sources and PSUs may be based on that SW platform.

Frank
Logged
 

Offline ohmjke

  • Newbie
  • Posts: 4
  • Country: fr
Re: Keysight 34465A in black
« Reply #11 on: December 02, 2022, 09:38:45 pm »
Hi everyone!
I have recently bought same black version and noticed that part of the components has evident traces of flux.
Is it ok for mass production of such a device?
Because for me it looks like home-made rework...
Though according to seller it is a new instrument (and it has all cables, certificate of calibration etc, and really looks new).

Another interesting thing is marking on PCB - "34460-26511 REV 003".
It seems KS indeed now using one board for all 344xxA family.

And one more thing - text on sticker on PCB starts with "34461-" - it looks weird too.

P.S. Fan is reeealy noisy - even UT8805E (4-5 times cheaper) has much less noise. Planning use Noctua too.
« Last Edit: December 02, 2022, 09:48:27 pm by ohmjke »
Logged
 
The following users thanked this post: coromonadalix, dophuc

Offline ohmjke

  • Newbie
  • Posts: 4
  • Country: fr
Re: Keysight 34465A in black
« Reply #12 on: December 02, 2022, 09:53:21 pm »
Made some photos for history.
Logged
 
The following users thanked this post: coromonadalix, dophuc

Online Bud

  • Super Contributor
  • ***
  • Posts: 6911
  • Country: ca
Re: Keysight 34465A in black
« Reply #13 on: December 02, 2022, 10:02:52 pm »
That area in 1.jpg indeed looks manually reworked.
Logged
Facebook-free life and Rigol-free shack.
 

Offline coromonadalix

  • Super Contributor
  • ***
  • Posts: 5900
  • Country: ca
Re: Keysight 34465A in black
« Reply #14 on: December 02, 2022, 11:16:49 pm »
You add some $$$  to have a Win CE license in it .... they should go with an linux port,  VxWork   anything else than CE ...
Logged
 

Offline manupthehillsTopic starter

  • Contributor
  • Posts: 40
  • Country: us
Re: Keysight 34465A in black
« Reply #15 on: December 03, 2022, 12:19:30 am »
The components that look manually reworked, are indeed missing in the 34461A, and present in the 34465A. Is that a result of parts shortage?
Actually no, that board was manufactured in 2017, week 37
« Last Edit: December 03, 2022, 12:23:45 am by manupthehills »
Logged
 

Offline Traceless

  • Regular Contributor
  • *
  • Posts: 219
  • Country: de
Re: Keysight 34465A in black
« Reply #16 on: December 03, 2022, 11:38:00 am »
Quote from: PushUp on January 02, 2021, 06:40:53 pm
As Keysight doesn't offer pix in black on their HP yet,...

Which is super funny because when I explicitly asked for a white one I was told that those were Agilent devices and that there was no such thing as a white Keysight 34465A

Quote from: PushUp on January 02, 2021, 06:40:53 pm
https://www.keysight.com/en/pdx-2891457-pn-34465A/digital-multimeter-6-digit-truevolt-dmm?cc=GB&lc=eng
...it would be nice to see some from the outer design as well, before you put it into your rack.

ThanX!  :)

I always thought the black ones were super common and nothing special, while the white ones were some kind of "accidental Limited Edition", because Keysight changed the color after acquiring Agilent instruments.

P.S.: Holy moly I just noticed that the 34465A has become super expensive recently.
« Last Edit: December 03, 2022, 11:47:16 am by Traceless »
Logged
 

Offline HighVoltage

  • Super Contributor
  • ***
  • Posts: 5473
  • Country: de
Re: Keysight 34465A in black
« Reply #17 on: December 03, 2022, 12:49:27 pm »
Quote from: Traceless on December 03, 2022, 11:38:00 am

P.S.: Holy moly I just noticed that the 34465A has become super expensive recently.

YES!
I bought my first 34465A for Euro 850
Same with all other Keysight and Keithley instruments
Good old days

Logged
There are 3 kinds of people in this world, those who can count and those who can not.
 

Offline Traceless

  • Regular Contributor
  • *
  • Posts: 219
  • Country: de
Re: Keysight 34465A in black
« Reply #18 on: December 03, 2022, 01:09:10 pm »
@HighVoltage: Okay wait 850€, new?

At the current pricing level I think it might be time for a shootout 34465A vs HDM3065:
Logged
 

Offline skander36

  • Frequent Contributor
  • **
  • Posts: 724
  • Country: ro
Re: Keysight 34465A in black
« Reply #19 on: December 03, 2022, 08:18:18 pm »
Quote from: HighVoltage on December 03, 2022, 12:49:27 pm
Quote from: Traceless on December 03, 2022, 11:38:00 am

P.S.: Holy moly I just noticed that the 34465A has become super expensive recently.

YES!
I bought my first 34465A for Euro 850
Same with all other Keysight and Keithley instruments
Good old days

Now it's 2,082 E. It's crazy ...
I bought with 1400 E in April.

https://www.welectron.com/Keysight-34465A-Benchtop-Multimeter_1
Logged
 
Pages: [1]   Go Up
« previous next »

Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf

 


EEVblog Main Site EEVblog on Youtube EEVblog on Twitter EEVblog on Facebook EEVblog on Odysee