| Products > Test Equipment |
| Keysight's new 34465A (6.5 digit) and 34470A (7.5 digit) bench multimeters |
| << < (88/145) > >> |
| Faith:
--- Quote from: carl_lab on August 19, 2016, 10:09:45 pm ---OK...? I had no problem to find space for the additional (one) digit, see attachment. (The red marked distance is unchanged, but could be reduced, too.) --- End quote --- I believe the reason for that extra space is to account for the worst-case-scenario for the following two extra characters: one for when you go down to the lower ranges (I believe the number will get suffixed with m/u), and another for the extra digit on the 34470A. Yes I do also believe that this is all pretty ridiculous but that is how the UI was designed it seems; to have a fixed size and to account in advance for the most amount of characters which need to be displayed. Would prefer if this was implemented better. As has been said already numerous times already; the screen isn't all that large. But all the more important that screen real-estate is utilised in a more efficient manner, no? So I really have no idea why the graph doesn't just scale horizontally to cater to what's required. |
| KE5FX:
--- Quote from: KE5FX on August 19, 2016, 09:19:48 pm ---I dunno. That looks like ass, IMHO. With a wide-aspect display like this, it certainly wouldn't have done any harm to spend a few horizontal pixels replicating the +5.04 at every graticule line. Graph rendering isn't a ripe subject for "innovation" unless you're absolutely certain you're improving things. If this labeling method didn't catch on in the 400 years since Descartes, what are the odds that it's the right thing to do now? --- End quote --- Also, what's going on in the last few lines, where the scale goes from .184 ... .096 ... .008 ... .920? Am I supposed to mentally apply the "+5.04" prefix to all of these? That's a worse bug than anything in the Keysight screenshots. |
| Faith:
--- Quote from: KE5FX on August 20, 2016, 01:25:47 am ---Also, what's going on in the last few lines, where the scale goes from .184 ... .096 ... .008 ... .920? Am I supposed to mentally apply the "+5.04" prefix to all of these? That's a worse bug than anything in the Keysight screenshots. --- End quote --- Oww >,<"... did not see that. That's bad. Sigh. |
| Dr. Frank:
Well, Now, that I'm sitting in front of my 34465A, I have to admit, that my advice, setting the Vertical Scale manually, does not fully work. The resolution is the very same, as the automatic graph scaling, for 2.500 00V, it's also 10µV only: But anyhow, manual scaling will set Low and High to even values, and setting Center / Span instead, gives a better control over the window in most cases. For such small differences, I found a better approach. By using the Math Scale function, you might either substract the average value (B = 2.500 000V), with a resolution of 1µV, and the window is now controllable in Center and Span to fractions of µV. Note also, that the instrument displays down to the resolution of the A/D, about 8 digits, or 100nV. By scaling with M = 0.400 000 and B =1, you will get a tidy readout in ppm, for the deviation from 2.500 000V. That's really cool, viewing NPLC 10 vs. NPLC 100 in 0.1ppm resolution. Note, how stable the 34465A performs. Frank |
| Dr. Frank:
Another extreme zoom, 10V from Fluke 5442A, displayed in +/- 0.1ppm window, 0.01ppm resolution. Regarding short term stability, the 34465A performs like a 7 1/2 DMM, isn't it? :-DMM |
| Navigation |
| Message Index |
| Next page |
| Previous page |