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| Keysight DMM - Yay or nay? |
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| tautech:
--- Quote from: Cerebus on March 06, 2022, 08:06:16 pm --- --- Quote from: tautech on March 06, 2022, 07:29:12 pm --- --- Quote from: Cerebus on March 06, 2022, 03:41:57 pm ---Upgraded to A.03.03 successfully and with no fuss, and now it take 29 seconds to boot, a whole 2 seconds longer than on the previous version I had on there. --- End quote --- First boot after upgrade or those thereafter ? I'm normally seeing first boot slower than normal after which the OS has its shit together with the new FW and back to normal with subsequent boots. --- End quote --- I've been in this game too long to get caught out like that. 2nd boot, after it was all done, and dusted. Rebooted another time (after the reboot that's automatic during the firmware upgrade) to be sure that it had taken the update cleanly and then powered off again then rebooted to time it. It agrees precisely with mawyatt's 29 second boot which is what I'd expect (assuming that he was up to date on firmware whereas I most definitely was not). --- End quote --- ;D Yes we see first the boot taking longer than subsequent other than FW updates. Not ideal when this is the new owners first impression of their new instrument but sadly too few dealers go the the effort we do checking for FW updates and getting that first boot outta the way before shipping any instrument out. First impressions count ! |
| Traceless:
--- Quote from: mawyatt on March 06, 2022, 03:45:22 pm ---Regarding Keysight CS, they haven't responded yet to an issue with the Web sever, and we have two doing the same thing. Everything else with Web servers works fine, just the KS34465As don't :-- --- End quote --- In case I get the KS I could try if I can replicate the problem, can you tell what that symptoms are? @Everyone: Yesterday I looked at the manuals of both the 34465A and the DMM 6500 and stumbled upon another disadvantage of the 34465A and just wanted to add that to the list of pros/cons: There is no way to set continuity mode thresholds on the 34465A, it is fixed at 10 Ohms (c.f. page 21). Below the threshold you get a beep, but if resistance is higher the meter just displays the resistance (of up to 1kOhm). The DMM 6500 lets you fully customize that. |
| blackdog:
Hi, Continuity The continuity works well on the 3446xa DMM these days., I almost never use the continuity function :-DD A much more important point for the use of this function are the measuring probes you get with most multimeters, these are just not good... The contact resistance is too high due to the oxidation process and therefore the continuity does not work properly and of course also the resistance measurement in the low values works therefore unreliable. Here a picture of a set of probes that are good but there are of course more brands that are good, but the probes from Fluke, TEK, Keysight are not comparable with the Bryman B.T.C. probes that I have here. And no they are not perfect, this due to use the layer of gold wears off the tip, but at other points of the probe tip it is still good, as is the unscrewable part which is very handy. . Display color Yes, make the background black is a good tip. :-+ Webinterface 34465a I don't recall encountering any problems with this, but also haven't used this feature much. Boot time Most of the time this is not important, because you already know you are going to measure something before you need the DMM, just turn it on before you really want to measure. the Keysight 3446xa series is usually well within its specification within 30 minutes. But most measurements that will be done can be done with a 3.5 Digit DMM. But that of course varies by user, more usually that will be correct for hobby use. 10-Ampere range This large current range is hardly used by me. When I do start measuring large currents, I take a hand DMM for that, but not everyone has that available. Low resistance values You can attach a lot of value to the function, but be aware that accurately measuring low resistance values is not easy. This is also the case with 4-wire measurements, and you can only do that with 4-wire measurement method! Mr. Seebeck is around every corner! Kind regards, Bram |
| mawyatt:
--- Quote from: Traceless on March 07, 2022, 07:51:44 am --- --- Quote from: mawyatt on March 06, 2022, 03:45:22 pm ---Regarding Keysight CS, they haven't responded yet to an issue with the Web sever, and we have two doing the same thing. Everything else with Web servers works fine, just the KS34465As don't :-- --- End quote --- In case I get the KS I could try if I can replicate the problem, can you tell what that symptoms are? --- End quote --- Here. https://www.eevblog.com/forum/testgear/web-issue-with-ks34465a/msg4032790/#msg4032790 Best, |
| blackdog:
Hi mawyatt, Based on the link you showed, something comes to mind that occurred with my 34465a DMM. I was testing about half a year ago with a piece of software in my LAN to "wake up" computers, which for those who don't know is called W.O.L, Wake On Lan. When I tried to wake up different computers to their M.A.C. address, the 34465a crashed. There was no IP conflict in my LAN, so see if you are sending WOL packets within your network segment. I hope this helps. Kind regards, Bram |
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