Code: [Select]1361,2020/10/15,12:02:37,DCVA,0022.32,VA,DCV,008.401,V,DCA,002.657,A,,
1362,2020/10/15,12:02:38,DCVA,0021.00,VA,DCV,008.401,V,DCA,002.500,A,,
I was testing the 12V 35W halogen bulb, using my Agilent E3642A power supply, using 0-8V/5A output.
I was varying the output voltage on the PSU in few mV increments. The PSU would show change from something like 2.500A to 2.503A, or even less. The display of the multimeter will then jump from 20.99W or 21.00W to about 22.0W, or 22.3W.
The 2.657A figure is absolutely wrong
This puts into question months of my data gathering on one of my project.
Maybe you followed the instructions in the manual? If so, that would give some poor results.
I was able to reproduce the issue as well. I ran some quick tests with a 66332A at around 2.5V, 4V, 5V, 12V. I did not notice the issue at 2.5V?
2.5V volts? We got issues with current reading, not voltage. It only shows up in VA mode - both on display without data logging and with data logging. The current reads and data logs correctly in current (A) mode.I think that J-R is pointing out that the current reading problem in VA mode also depends on the Voltage your around, even a constant voltage. Haven't spent the time to look at it enough but it also may have something to do with what range (voltage & current) you are on. Definitely another small but irritating bug.
Got 123V
Have you measured between neutral and PE (ground) in Low Z mode?
Using low-Z the voltage disappeared. I read up on ghost voltage. Yep, that was what I saw.
Thanks for your assistance.
Using low-Z the voltage disappeared. I read up on ghost voltage. Yep, that was what I saw.
Thanks for your assistance.Surely that means your ground is a high impedance, which means it's not ground at all and could be dangerous if you use it to ground something that needs a ground for safety reasons.
Plenty of bugs remain. I had issues with capacitance autoranging, some values are impossible to measure with autoranging on.