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

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AndyC_772:

--- Quote from: LabSpokane on March 15, 2015, 06:53:52 pm ---What is up with all the complaints about the fans?  Do you guys have bionic hearing or something? Or do you have the meters backed directly against a ultra-noise reflective wall so all the noise is bouncing back to you?

--- End quote ---

No, it's just a pitch that I happen to find objectionable.

By comparison, my 6632B power supplies and MSO-X3000A scope are louder in absolute terms, but annoy me less.

babysitter:
@LabSpokane: The only valid assumption is that the labs comply to the datasheet specification, as the user needs to infer the performance of his own setup out of this. Also, those data sheets and app notes haven't changed :)

(I consider KeySight very capable but not perfect, I have been one of the 34405A victims at work which was almost unusable for remote operation for a long time until f/w was fixed. But that was a unneccesary mess-up, in a different leage of DMMs.)

The 3458A also has a fan and a long history, so it is proven that you can make quite a nice thing out of this design and there are hints that they reused a lot in the 70A. But in both, there is space for tiny changes to bump up specs. This is not necessarily failed due dilligence.

Vgkid:
The early hp3456a had a fan.

HighVoltage:
I think the 3458A also has a fan
My 34461A is really quiet and does not disturb me at all.

If you want to know what fan noise is, get a Lecroy WaveJet scope 354
That sucker was so loud, I returned it.

Some of my Agilent power supplies had some annoying noise level and I exchanged the fans to low noise types.

rosbuitre:

--- Quote from: LaurentR on March 14, 2015, 01:31:55 am ---
--- Quote from: Tom45 on March 14, 2015, 01:19:02 am ---So if it hadn't been sold before May 1st would they have pulled it from the shelf and tossed it into a dumpster? Donated it to homeless people?

Tom

--- End quote ---

Congrats on the purchase.

I think it has to do with Warranty and Calibration.
When I registered my 34461A, they gave me a warranty expiration 42 (36+6) months from _manufacturing date_. They didn't use (or even ask for) the sale date. So to guarantee their standard 36 month warranty, they have to sell the unit within 6 months of manufacturing. I assume it also helps making sure that units still have a fair amount (I guess that's >= 6 months) left on the 1yr calibration.

I had another experience buying a Keysight HH DMM that we later found out had been sitting on a shelf for 4 years. When I tried to register it, Keysight marked it as out of warranty. Had to return it to the dealer and they got me a fresh one directly from Keysight. I assume dealers are required to sell fresh inventory or return it for refreshing (e.g. recalibration).

I don't know if this 42 month policy is official but that seems to be how it works in practice. It's certainly easier to deal with than trying to track the sale date.

--- End quote ---

Hi
The warranty on the website of Keysight after registering the 34461A is until 2018, but in the invoice of the official distributor in Argentina contained only one year, I must complain to keysight?

Regards?

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