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

--- Quote from: HighVoltage on March 21, 2015, 08:47:24 pm ---
--- Quote from: dadler on March 21, 2015, 07:50:29 pm ---Just tried this- it works on screen, but it clicks the relays every couple of seconds and locks up the display for each update. Anyone else seeing this?

--- End quote ---

Yes, it is the same annoying relay action on the 34470A
Interestingly the much older 34410A does not do this for dual display action.

--- End quote ---

I'm new to the party here-is this new functionality across the 3446/7X range? I just can't imagine that this would be desired behavior. Imagine extended duration datalogging using up a lot of relay cycles.

OMRON G6AK-274P-STLT-US 5v

Datasheet: http://www.omron.com/ecb/products/pdf/en-g6a.pdf

Durability Mechanical: 100,000,000 operations min. (at 36,000 operations/hr)
Durability Electrical: 500,000 operations min. (at 1,800 operations/hr)

This means we can only collect measurements for 6.342 years  :-- Not doing the math on the electrical durability.

Ok, so maybe that's a non-issue  ;). But the clicks and hanging display drive me batty.
KE5FX:
Amusingly, the first thing I noticed in the new 34461A firmware is that they screwed up the "4" character in the font.  It no longer looks as if it belongs in the same character set.  :scared:  You can see the effect in the shots HighVoltage posted. 

I demand a refund!  Or, um, a free 34470A upgrade, if that's easier for Keysight.
HighVoltage:
Another no so nice surprise:

Even with the FW update, you can only use a 5k Ohm 2W and 4W thermistor for temperature measurements.
The 34410A allowed for 2.2k and 10k thermistors.
You really have to wonder, why such a simple implementation would not make it in to huge FW update.

The RTD values can be set, if needed. Just not the thermistors.

6thimage:

--- Quote from: rosbuitre on March 21, 2015, 03:06:17 pm ---Hi
Content with the new version of firmware  :-+ (34461A)
But I have a question, someone I can clarify why says Time since last calibration: 808 days ??, .......
Buy less than a month ago a representative of Keysight on Argentina

Regards

--- End quote ---

It is similar on mine - using the web interface you can find out the calibration date, which for mine is showing as "Last Calibration Date: Tuesday, January 1, 2013", despite the fact mine was calibrated on the 19th April 2013.

My guess is that the time since the last calibration requires the meter to store the date in a difference place to the cal string - so next time you get it calibrated, the time display should be correct.
TooOldForThis:
I did some quick capacitance measurements using the 34461A's new feature compared to two other devices.

With the more instruments I get, the less know about the parts I'm measuring. 

 
Notes:   
* The 34461 initially measured a 100nF cap at 81nF but it slowly crept up to 85 over a few minutes.
** The DM3068 jumped all over the place with pF range cap.
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