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

[Hexley]

The continuity test feature in my 34465A is acting oddly when the meter is first powered on: the beep sound extends for a long time after continuity is broken. In other words, a brief touch of the probes will produce a few full seconds of sound.

After 3 or 4 test touches, with the prolonged beep period getting shorter on each test, the meter seems to recover and it operates as expected from that point onward.

I suppose Keysight should take a look at this. Before sending it in for service, I wanted to ask if any forum members have seen a similar issue?

BTW, the meter is running v3.01 firmware.

[TheSteve]

I don't see this on a 34461A running 3.01 but I know in the past the performance of continuity was broken on the 34461A when they first added support for the 34465/70 so there is a difference somewhere. Hopefully another 34465A owner can comment.

[HighVoltage]

The continuity test behavior of these instruments never went back to how it was when the 34461A was released first with the original FW.
My guess, its probably such a minor issue that will not be addressed again in the future with new FW updates.

[kj7e]

Running FW v3.01 on my 34465A, just fired mine up and found no issues with odd tone or tone latch behavior.

[Hexley]

Running FW v3.01 on my 34465A, just fired mine up and found no issues with odd tone or tone latch behavior.

Thanks for checking. Looks like it is not a widespread issue, just something idiosyncratic here.

[idolclub]

Keysight Releases New Firmware v3.02 for 3446xA / 34470A series.

Firmware Update 3.02 Release Notes (Previous release: 3.01)

34460A/34461A/34465A/34470A Revision 3.02 Enhancements and Fixes:

1. Resolves the memory leak associated with LAN traffic that occurred when the DMM is connected to a LAN network but remains idle for several days.



34460A/34461A/34465A/34470A Revision 3.01 Enhancements and Fixes:

1. Improvements to reduce the occurrence of a memory leak associated with LAN traffic that occurs when the DMM is connected to a LAN network but remains idle for several days.

2. Changed the 100 kΩ range calibration to internally select 100 NPLC rather than 10 NPLC to better reject noise associated with selected Fluke 5730 calibration values.

3. Removed Option AVG from the list of available options (Help – About window) as it is not available to all customers.

[NoisyBoy]

Thanks for the heads-up, as I wasn't expecting another firmware update so quickly.  Apparently the memory leak fix in 3.01 must not be doing the trick, I will update my meters later tonight.

[TheSteve]

Updated without issue!

[NoisyBoy]

X2, update went smoothly on both the 34461A and 34465A. 

Thanks Keysight for being so responsive and proactive on firmware update.  This is one of many reasons that separate Keysight from most tier-B brands, for me, it makes the decision to go Keysight easy to justify. 

[eplpwr]

Has there been any solutionss for the ACAL problem with the 34470A's? It has been some time since they started working on a solution ...

[HighVoltage]

New Firmware Update 3.03 is available on the Keysight website:

https://www.keysight.com/de/de/lib/software-detail/instrument-firmware-software/34460a34461a34465a34470a-firmware-2367633.html


Firmware Update 3.03 Release Notes:
34460A/34461A/34465A/34470A Revision 3.03 Enhancements and Fixes

1. Multiple fixes on Web UI Interactive IO.
- Resolved a defect where Web UI Interactive IO was not able to fetch all available readings. 
- Resolved a defect where instrument will display error message “Error caused by remote command” before the entire command is entered and executed via Web UI Interactive IO.

2. Changed the “Slave” terminology to “Secondary” on the error message.


Too bad, the ACAL problem with the 34470A was not addressed.

[iMo]

..
2. Changed the “Slave” terminology to “Secondary” on the error message.


Too bad, the ACAL problem with the 34470A was not addressed.

But all is politically correct now.. 

[HighVoltage]

..
2. Changed the “Slave” terminology to “Secondary” on the error message.


Too bad, the ACAL problem with the 34470A was not addressed.

But all is politically correct now.. 

I did not want to say it, but so true !

[Kjelt]

Priorities 

[branadic]

Now that ADR1399 is available, someone already replaced the LM399 inside their 34465A?

-branadic-

[HighVoltage]

Now that ADR1399 is available, someone already replaced the LM399 inside their 34465A?

-branadic-

I got very lucky with my 34465A,  it is in such good condition and spot on in the DC calibration that I am not planning to play with the ADR1399. Hmm, but maybe getting a second 34465A for upgrading and comparison would not be a bad idea.
 

[Messtechniker]

Is there a SCPI command for the total number
of operating hours for my 34465A? Or any
other way of determining this?

*LRN? showed a lot of SCPI commands.
But not the one I need. No hints in the manual
and the SCPI programming manual.

By the way: *LRN? is not implemented on all the other
SCPI equipment I have.

[gamalot]

Is there a SCPI command for the total number
of operating hours for my 34465A? Or any
other way of determining this?

*LRN? showed a lot of SCPI commands.
But not the one I need. No hints in the manual
and the SCPI programming manual.

By the way: *LRN? is not implemented on all the other
SCPI equipment I have.

I saw that the release notes of firmware version 1.09 mentioned that a new command SYST:UPT? for querying the uptime was added, so I have reason to suspect that the feature of recording uptime did not exist in the original version, that is to say, the total uptime cannot be recorded or queried.

---

Or, maybe, the feature is there, but not made available to end users.

[Messtechniker]

Yep. You're probably right as to no total time.
SYST:UPT? works displaying the time in days/hours/minutes/seconds
since switching on.

[voltsandjolts]

Time to wake this sleeping beauty again!

I'm looking to purchase the 3446MEMU 2M memory upgrade, as a private individual. Welectron are offering it for EUR 289. IIUC I will then need to register at keysight.com to get the encrypted key to load on my meter.

Has anyone done that as a private individual? Just wondering if I'll be asked for a VAT number from keysight before they will deliver the key, which would be a spanner in the works.

[jc101]

Looking at the text from my certificate for mine, this was the procedure...

INSTRUCTIONS:
HOW TO REDEEM YOUR LICENSE
Log into Keysight’s licensing website at
www.keysight.com/find/softwaremanager to redeem your license.
You will need the following information:
• Keysight Order Number and Keysight Certificate Number from the top of this certificate
• Host ID (Instructions will be provided during the redemption process in the licensing website).
• The model and serial numbers for the unit(s) that will use the license(s)
When you are asked to select the host to assign licenses to, select "Add a new Model Number host..." and enter the model number
and serial number of your instrument.

Try to create a Keysight account. If you can do that and add your meter to it, you should be able to redeem the key.