Products > Test Equipment
Keysight's new 34465A (6.5 digit) and 34470A (7.5 digit) bench multimeters
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HighVoltage:

--- Quote from: DJ on March 25, 2015, 03:59:08 am ---
That is an extremely useful post! It has talked me out of that extra digit, which was pretty much a "that would be neat!" thing.

6 1/2 should be plenty to see drift, things leaking, discharging etc.

I owe you a beer!

--- End quote ---


Especially since the 34461A now shows one more digit after the firmware update, we can see a drift much easier than before. For me that is probably the best feature of all the firmware enhancements.
rosbuitre:

--- Quote from: HighVoltage on March 25, 2015, 09:16:10 am ---

It seems the 34461A is a little faster in getting stable and reliable readings

--- End quote ---

Thanks for the data, very useful  :-+
Regards
LA7SJA:

--- Quote from: HighVoltage on March 25, 2015, 09:20:09 am ---
--- Quote from: DJ on March 25, 2015, 03:59:08 am ---
That is an extremely useful post! It has talked me out of that extra digit, which was pretty much a "that would be neat!" thing.

6 1/2 should be plenty to see drift, things leaking, discharging etc.

I owe you a beer!

--- End quote ---


Especially since the 34461A now shows one more digit after the firmware update, we can see a drift much easier than before. For me that is probably the best feature of all the firmware enhancements.

--- End quote ---

I owe you two beer at least, you have convinced my that my 34461A will serve me good for a few year forward and I would rather spend my money on more frequent calibrations of all my gear. A full calibration of my Rohde & Schwarz CMS 54 is > 750$ so I keep my 34461A until it breaks (or I) and spend my money on calibration and more stuff I don't need.

Johan-Fredrik
HighVoltage:
Johan-Fredrik, I think you will be very happy with the 33461A after the firmware update. Both of my 33461A's are working exceptionally well.
I take you guys up on the beer offer, next time I am traveling to your country.


Here is another good comparison between the 33461A and the 33470A

Conditions:
- Both instruments ON for several hours
- 10V reference on for a few days
- Both instruments on: 100 PLC, Auto-Ranging, Auto-Scale-Once (pressed once), parallel connected to 10V reference,
- Run time about 2h:18 min as shown in "elapsed time" and 2077 samples taken

 
dadler:
Which voltage reference are you using?
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