I think there is need to revamp my python knowledge to make it more useful though.
Would be nice if you just follow existing format for now.
What you will run to get GPIB data? I can try to make an script for 7510, but haven't read it's docs yet.
| Multimeter | Range | NPLC | Counts | Sq.sum | Average | SD | SD,uV |
| k2010 | 10 | .01 | 120 | 0.00427245 | 3.560375E-05 | 9.487653E-05 | 94.877 |
| k2010 | 10 | .1 | 120 | -0.00019567 | -1.630594E-06 | 1.470821E-05 | 14.708 |
| k2010 | 10 | 10 | 360 | -0.00070481 | -1.957792E-06 | 5.162154E-07 | 0.516 |
| k2010 | 10 | 1 | 120 | -0.00023459 | -1.954949E-06 | 1.273443E-06 | 1.273 |
| Multimeter | Range | NPLC | Counts | Sq.sum | Average | SD | SD,uV |
| k2450 | 2 | 1 | 121 | -0.00503126 | -4.158066E-05 | 3.858809E-06 | 3.859 |
| k2450 | 2 | 10 | 121 | -0.00469228 | -3.877919E-05 | 3.558100E-06 | 3.558 |
| k2450 | 2 | .1 | 121 | -0.00864380 | -7.143638E-05 | 2.372225E-05 | 23.722 |
| k2450 | 2 | .01 | 121 | -0.04565281 | -3.772959E-04 | 5.115046E-05 | 51.150 |
I think it is done more simply than the 3458A, some clues are in the 24hr range error specification. From 10V>1V>0.1V the range error is 0.1>1>10 ppm. I don't know if the difference are from a worse ADC, or different Auto Cal scheme, or both.
If you have any free time with the 3458A, can you check the error from applying 100mVDC to the 10V range and then reading it from the 100mV range? I get a difference of about 2-5ppm of reading even after an Auto Cal.
Lookingforward to your K7510 update Dr.diesel.
| Multimeter | Range | NPLC | Counts | Sq.sum | Average | SD | SD,uV |
| k7510 | .1 | .01 | 1800 | -0.00946209 | -5.256717E-06 | 7.585452E-06 | 7.585 |
| k7510 | .1 | .1 | 1799 | -0.00845946 | -4.702313E-06 | 4.205452E-06 | 4.205 |
| k7510 | .1 | 1 | 1801 | -0.00984773 | -5.467925E-06 | 4.684346E-07 | 0.468 |
| k7510 | .1 | 10 | 1801 | -0.00976237 | -5.420526E-06 | 1.885766E-07 | 0.189 |
| k7510 | 1 | .01 | 1801 | -0.00793555 | -4.406191E-06 | 7.629865E-06 | 7.630 |
| k7510 | 1 | .1 | 1799 | -0.00784621 | -4.361427E-06 | 3.954875E-06 | 3.955 |
| k7510 | 1 | 1 | 1801 | -0.00977324 | -5.426563E-06 | 4.579941E-07 | 0.458 |
| k7510 | 1 | 10 | 1801 | -0.00979378 | -5.437968E-06 | 1.943267E-07 | 0.194 |
| k7510 | 10 | .01 | 1801 | 0.00635690 | 3.529649E-06 | 1.290502E-05 | 12.905 |
| k7510 | 10 | .1 | 1799 | -0.00104714 | -5.820696E-07 | 4.829904E-06 | 4.830 |
| k7510 | 10 | 1 | 1801 | -0.00204352 | -1.134657E-06 | 7.491898E-07 | 0.749 |
| k7510 | 10 | 10 | 1801 | -0.00203306 | -1.128850E-06 | 4.907266E-07 | 0.491 |
| k7510 | 100 | .01 | 1801 | -0.09902185 | -5.498160E-05 | 1.346015E-03 |1346.015 |
| k7510 | 100 | .1 | 1799 | -0.20888873 | -1.161138E-04 | 1.807134E-04 | 180.713 |
| k7510 | 100 | 1 | 1801 | -0.31506582 | -1.749394E-04 | 5.533520E-05 | 55.335 |
| k7510 | 100 | 10 | 1801 | -0.32145543 | -1.784872E-04 | 1.786285E-05 | 17.863 |
| k7510 | 1000 | .01 | 1801 | 1.33690515 | 7.423127E-04 | 1.674120E-03 |1674.120 |
| k7510 | 1000 | .1 | 1799 | -0.16155031 | -8.980006E-05 | 2.495570E-04 | 249.557 |
| k7510 | 1000 | 1 | 1801 | -0.35094636 | -1.948619E-04 | 8.040639E-05 | 80.406 |
| k7510 | 1000 | 10 | 1802 | -0.35127405 | -1.949357E-04 | 5.129073E-05 | 51.291 |
| Multimeter | Range | NPLC | Counts | Sq.sum | Average | SD | SD,uV |
| k7510 | .1 | 10 | 301 | -0.00024168 | -8.029273E-07 | 5.626927E-08 | 0.056 |
| k7510 | .1 | .1 | 301 | -0.00025192 | -8.369386E-07 | 3.502203E-07 | 0.350 |
| k7510 | .1 | 1 | 301 | -0.00022957 | -7.627042E-07 | 6.791389E-08 | 0.068 |
| k7510 | .1 | .01 | 300 | 0.00098528 | 3.284266E-06 | 5.638453E-07 | 0.564 |
| Multimeter | Range | NPLC | Counts | Sq.sum | Average | SD | SD,uV |
| k7510 | .1 | .01 | 300 | 0.00098528 | 3.284266E-06 | 5.638453E-07 | 0.564 |
| k7510 | .1 | .1 | 301 | -0.00025192 | -8.369386E-07 | 3.502203E-07 | 0.350 |
| k7510 | .1 | 1 | 301 | -0.00022957 | -7.627042E-07 | 6.791389E-08 | 0.068 |
| k7510 | .1 | 10 | 301 | -0.00024168 | -8.029273E-07 | 5.626927E-08 | 0.056 |
| k7510 | 1 | .01 | 301 | 0.00116343 | 3.865231E-06 | 1.363790E-06 | 1.364 |
| k7510 | 1 | .1 | 301 | -0.00021776 | -7.234496E-07 | 5.733036E-07 | 0.573 |
| k7510 | 1 | 1 | 301 | -0.00028301 | -9.402422E-07 | 1.024698E-07 | 0.102 |
| k7510 | 1 | 10 | 301 | -0.00028457 | -9.454107E-07 | 8.580283E-08 | 0.086 |
| k7510 | 10 | .01 | 301 | 0.00220821 | 7.336241E-06 | 1.301336E-05 | 13.013 |
| k7510 | 10 | .1 | 301 | -0.00016204 | -5.383527E-07 | 2.435271E-06 | 2.435 |
| k7510 | 10 | 1 | 301 | -0.00031698 | -1.053088E-06 | 7.528228E-07 | 0.753 |
| k7510 | 10 | 10 | 301 | -0.00034107 | -1.133112E-06 | 5.040502E-07 | 0.504 |
| k7510 | 100 | .01 | 301 | 0.16086693 | 5.344416E-04 | 7.598755E-04 | 759.875 |
| k7510 | 100 | .1 | 301 | 0.09894463 | 3.287197E-04 | 1.358261E-04 | 135.826 |
| k7510 | 100 | 1 | 301 | 0.10250599 | 3.405514E-04 | 3.750361E-05 | 37.504 |
| k7510 | 100 | 10 | 301 | 0.10177610 | 3.381266E-04 | 2.422995E-05 | 24.230 |
| k7510 | 1000 | .01 | 301 | 0.06277022 | 2.085389E-04 | 1.766823E-03 |1766.823 |
| k7510 | 1000 | .1 | 301 | -0.04796741 | -1.593602E-04 | 2.381594E-04 | 238.159 |
| k7510 | 1000 | 10 | 302 | -0.05574608 | -1.845897E-04 | 5.981283E-05 | 59.813 |
| k7510 | 1000 | 1 | 301 | -0.05423848 | -1.801943E-04 | 7.543913E-05 | 75.439 |
| Multimeter | Range | NPLC | Counts | Sq.sum | Average | SD | SD,uV |
| k7510 | .1 | .01 | 1800 | 0.00649502 | 3.608347E-06 | 5.157321E-07 | 0.516 |
| k7510 | .1 | .1 | 1801 | -0.00123428 | -6.853294E-07 | 2.515242E-07 | 0.252 |
| k7510 | .1 | 1 | 1801 | -0.00110277 | -6.123113E-07 | 5.430182E-08 | 0.054 |
| k7510 | .1 | 10 | 1801 | -0.00110202 | -6.118930E-07 | 3.105326E-08 | 0.031 |
| k7510 | 1 | .01 | 1801 | 0.00784606 | 4.356503E-06 | 1.394442E-06 | 1.394 |
| k7510 | 1 | .1 | 1801 | -0.00105845 | -5.877040E-07 | 3.416894E-07 | 0.342 |
| k7510 | 1 | 1 | 1801 | -0.00112253 | -6.232788E-07 | 8.595656E-08 | 0.086 |
| k7510 | 1 | 10 | 1801 | -0.00101890 | -5.657409E-07 | 7.448410E-08 | 0.074 |
| k7510 | 10 | .01 | 1801 | 0.01771527 | 9.836353E-06 | 1.266939E-05 | 12.669 |
| k7510 | 10 | .1 | 1801 | -0.00054103 | -3.004068E-07 | 2.496712E-06 | 2.497 |
| k7510 | 10 | 1 | 1801 | -0.00143662 | -7.976804E-07 | 7.432814E-07 | 0.743 |
| k7510 | 10 | 10 | 1801 | -0.00134081 | -7.444814E-07 | 5.072808E-07 | 0.507 |
| k7510 | 100 | .01 | 1801 | 0.89856873 | 4.989277E-04 | 7.725466E-04 | 772.547 |
| k7510 | 100 | .1 | 1801 | 0.56770246 | 3.152151E-04 | 1.102306E-04 | 110.231 |
| k7510 | 100 | 1 | 1801 | 0.59237881 | 3.289166E-04 | 3.473867E-05 | 34.739 |
| k7510 | 100 | 10 | 1801 | 0.58874287 | 3.268978E-04 | 1.637639E-05 | 16.376 |
| k7510 | 1000 | .01 | 1799 | 1.35719201 | 7.544147E-04 | 1.723659E-03 |1723.659 |
| k7510 | 1000 | .1 | 1801 | -0.31368228 | -1.741712E-04 | 2.448538E-04 | 244.854 |
| k7510 | 1000 | 1 | 1801 | -0.35386557 | -1.964828E-04 | 7.926890E-05 | 79.269 |
| k7510 | 1000 | 10 | 1802 | -0.34549073 | -1.917263E-04 | 5.191135E-05 | 51.911 |
ah i see. this is my log in xls for your sample view (should open as with no problem?), column 1 is time reference, column 2 is data in nV. but for TiN's web format i think 9 decimals of data /w scientific notation? i think you need to unlock the numbers after the 6th decimals
@rigrunner, i think if you look at manatee mafia's 3458a log in xdev website, you see that the data is 1.2345-Exx. but your data is only zero and one.