Hey Scott,
I'm on vacation for the next few weeks (so I don't need it right now) and I haven't been using my 5200A for a while anyway (I've used my 5440B because I'm calibrating some power meters). I'm happy to send you my A10 and other boards to help you find the guilty bastard - let me know.
TonyG
Hi All,
I just released that I forgot to post a few videos here!
I have some more on the way soon to, and (spoiler alert) I have got it working!
Part 9:
Part 10:
Part 11:
Testing of oscillator functionality, which may be helpful to someone (I did this for the guest appearance on Dave's channel, so you may have seen it):
And Part 12 is published now too:
Part 15:
https://youtu.be/ZPgE5YUoQ4Y
Nice! Anything project in which a man takes 15 videos to get working is an awesome accomplishment!
It sounds like you almost didn't believe what you were seeing when you kept saying "Yeah, it's working!" Hah!
Nice! Anything project in which a man takes 15 videos to get working is an awesome accomplishment!
You should see my 15 part video on the travails changing a particular little light bulb (that shall not be named, lest it gets any ideas)... now THAT was an accomplishment extraordinaire! Even Defpom would be awed!
I was watching Part #17 on your repairing the FLUKE 5200A AC Calibrator when you are doing step 4-71 d and onwards. You are first assuming that your Siglent SDM 3065 (I think that is the model you are using as it is hard to read the exact model number from the video) Digital Multimeter frequency response goes to above 1 MHz. I am looking at the specs and it is only rated to 300 KHz at something like +/- 4%. But who knows what value it will give you at 1.05 MHz? You apparently didn't read Section 4-71 step "e" correctly in that it wants you to use a FLUKE 931B AC differential voltmeter which has a frequency response to 1 MHz at 3%. Or at least some AC meter that can measure 1 MHz, as I don't think the Siglent can do the job at this step. Also I don't understand why you are getting a " - " symbol on the DMM when you are supposed to be measuring AC voltages? Did you change to the AC measurement on the Siglent? Also you seem to have the PLC on the Siglent to be set to 1PLC where you may need a larger value like maybe 10 PLC to stabilize your low level readings, either AC or DC. The 5200A should be able to give you a good stable output to below 0.1 mv ( less than 10 ppm ) at 10 vAC and 1 KHz with the DMM at 10 PLC. Mine does as measured on my 3458A at those conditions. I do see a +/- 5ppm ( 0.05 mv ) "flicker" on the 3458A. I am also using "SETACV SYNC" on the 3458A.
Bill
I was watching Part #17 on your repairing the FLUKE 5200A AC Calibrator when you are doing step 4-71 d and onwards. You are first assuming that your Siglent SDM 3065 (I think that is the model you are using as it is hard to read the exact model number from the video) Digital Multimeter frequency response goes to above 1 MHz. I am looking at the specs and it is only rated to 300 KHz at something like +/- 4%. But who knows what value it will give you at 1.05 MHz? You apparently didn't read Section 4-71 step "e" correctly in that it wants you to use a FLUKE 931B AC differential voltmeter which has a frequency response to 1 MHz at 3%. Or at least some AC meter that can measure 1 MHz, as I don't think the Siglent can do the job at this step. Also I don't understand why you are getting a " - " symbol on the DMM when you are supposed to be measuring AC voltages? Did you change to the AC measurement on the Siglent? Also you seem to have the PLC on the Siglent to be set to 1PLC where you may need a larger value like maybe 10 PLC to stabilize your low level readings, either AC or DC. The 5200A should be able to give you a good stable output to below 0.1 mv ( less than 10 ppm ) at 10 vAC and 1 KHz with the DMM at 10 PLC. Mine does as measured on my 3458A at those conditions. I do see a +/- 5ppm ( 0.05 mv ) "flicker" on the 3458A. I am also using "SETACV SYNC" on the 3458A.
Bill
Thanks for your observations, I had read about using the differential volt meter, but as I don’t have one I have to use the best substitute I have.
I am only using 1 plc to speed up the reading rate, when I need more precise readings I increase it, at the stage of the video I am really just trying to get it roughly working to try and narrow down where the output noise is coming from, the noise would be messing up the accuracy anyway.
Hi TheDefpom,
Did you complete the 5200A repair and calibration - I saw you got to part#19..
I have a pair of 5200A here (one black handled and one silver handled) - these are largely surplus (we have other calibrators), but I don't mind firing them up to pull waveforms measurements off them.