Products > Test Equipment
Keysight's new 34465A (6.5 digit) and 34470A (7.5 digit) bench multimeters
<< < (13/145) > >>
Corporate666:

--- Quote from: Howardlong on March 03, 2015, 04:58:32 pm ---
--- Quote from: Sbampato12 on March 03, 2015, 04:50:32 pm ---
--- Quote from: Howardlong on March 03, 2015, 03:26:12 pm ---I'll test the water here.

What is the justification for blowing $3,000 on a 7.5 digit dmm?

I am desperately trying to keep an open mind, but it is my head that's saying besides a very, very, very few edge cases this has strong parallels to audiophoolery.

Please educate me!

--- End quote ---

If you could pay a lot more on a 8.5 digit dmm, why not on a 7.5 digits?
Some cases you need, and when you need, you need.

--- End quote ---

But what are those cases?  :-//

--- End quote ---

Well, testing voltage and current references for one.

Or what if you have an application where you're using a high quality ADC to measure something and you want to check your results in testing before releasing something to the field?  Or for calibrating a device using an ADC prior to shipment.  Or anytime that having a more accurate result is valuable... light sensing, temperature sensing, or whatever.

I don't think there is any parallel to audiophoolery, because an 8.5 digit DMM will actually have that level of resolution and accuracy, whereas audiophoolery is about expensive products that don't actually do anything at all. 
LabSpokane:
Speaking of strange options, does anyone know if the LAN port is enabled or disabled by default on the 34465A?  Keysight says yes. Testequity says no. Keysight does not respond to inquiries except to forward me to Microlease, which I find mildly irritating. Yeah, I'm a one man band with no volume , but this is a simple question. :-/

=============================================================
The forum's resident Keysight lurker saw my question and asked an engineer.  Turns out that the LAN port is enabled as part of the base price unit for the 34461/65/70A. 

:)
LabSpokane:
Is it OK for us to *not* have another debate on the merits of digits?  Just when you thought that horse gave its last whinny...  :palm:
6thimage:

--- Quote from: LabSpokane on March 03, 2015, 05:40:04 pm ---Speaking of strange options, does anyone know if the LAN port is enabled or disabled by default on the 34465A?  Keysight says yes. Testequity says no. Keysight does not respond to inquiries except to forward me to Microlease, which I find mildly irritating. Yeah, I'm a one man band with no volume , but this is a simple question. :-/

--- End quote ---

If by enabled you mean it is not an option, then yes - to my knowledge you only have to pay extra for it on the 34460A (where the probes are also an optional extra).
AndyC_772:
The only time I've used all the digits on my 6.5 digit meter is to observe the resistivity of copper increasing with temperature. I did some testing on a power cable a couple of years ago, and it was quite interesting to see the rate of change of current with time as the cable warmed up. A meter with less resolution wouldn't have shown it nearly so clearly.
Navigation
Message Index
Next page
Previous page
There was an error while thanking
Thanking...

Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod