Thanks for the insights.
If you followed my testing of the firmware, they were changing the filters on each new release.
No, I haven't. Not having the meter my interest flows somewhere else.
You're going to be very bored with this series then. Not that my data dumps are all that exciting to begin with.
The noise was getting really bad and the AC line rejection was suffering.
There's no free lunch.
Maybe they found a way to have their cake and eat it too but from the trend I was seeing, that didn't seem to be the case. Before installing the new firmware, I plan to repeat some of those noise tests using the older firmware with the new meter and see if the results repeat.
I assume the changes to the filters was made in attempt to reduce the settling time but it was making the meter worthless. I want a fast and accurate meter. If I have to choose between fast and inaccurate or slow and accurate, hands down I will take accurate every time.
You can tell that Keysight thinks exactly like you when they designed the U1282A. I only wish they had put the resolution selection on a simple button press like the 87V. It is an excellent meter but &%$@! slow in 4-1/2 mode.
If noise isn't a problem and you really only need a fast 3.5 digit DMM, I understand Harbor Freight still provides free ones.
It will be interesting to see how it plays out.
If you think reprogramming the firmware takes a lot of time, stay tuned for part 2 where I look at the hardware. The boards have some interesting rework which I dare say required a lot more time than it would take to install the latest firmware.
Interesting, although hardware rework was probably done before packaging.
If you watched the video, you know the one box had been opened to add the fuses. As you don't have a meter to try it, you could use Dave's numbers.
How accessible is it ? I thought it was behind the screwed-down fuse cover.
It is.
It takes less than 20 seconds to remove the holster, undo two screws (metal threaded insert), remove the battery cover and take out the SD card.
Yes, I timed it.
Hardly a chore for anyone who wants to do occasional data logging. And as I said, faster than dicking around with Bluetooth BLE and a ridiculously slow data rate.
If you are doing data logging all the time, I'd recommend buying a proper data logger with the convenient interface of your choice.
What's interesting about his comment is once I had LabView working with the meter, I never used the SD card to log again. My only real dicking around was getting my software working.