Hi, I just calibrated the voltage on my 6611C using a well within calibration 6 1/2 digit DMM. Now the voltage readings as set via the PS are within a tolerance of 250-330 uV of the displayed voltage value on the 6611C when not under load (i.e., PS directly to DMM). If you haven't calibrated your two devices and you have the equipment, it's definitely a worthwhile endeavor! The voltage calibration procedure is as easy as can be, as it usually is on HP/Agilent/Keysight power supplies. You get a low voltage below 1 V and a high voltage of about 8.8 V on my 6611C-J05 and you enter them in via the front keypad. Save and done - you have a calibrated supply (at least voltage wise). If you were in the "neighborhood" I would do it for you, but sadly you're not (I live in Illinois...) Unfortunately, current calibration requires a high precision 3W 400 ohm resistor (unobtainium category, part #0811-2878). Maybe I'll see if I can hack something up from multiple parts.
Thanks for making all these videos. Can I use a part of your videos (3-5)min with your voice and a link to your TH-cam video in order to make a reference in my TH-cam video in an Agilent 6612C troubleshooting and reverse engineering?
Wow, thanks for the analysis of this supply. I just bought two 6612C units on eBay. I know that you repaired this one and purchased it broken on eBay. If you don't mind me asking, how much did you pay for your unit a year or so ago?
+FeedbackLoop Thanks, I got both in working order for $300 plus $30 in shipping, so I guess that wasn't a bad deal. More interestingly, I just also scored a rare beast on eBay: 6611C-J05 for $150 (plus another $30 shipping) in supposed working order. It is the same as 6611C, but goes up to 10V/5A in 3 mV programmable increments (instead of 2 mV on the regular 6611C) (current max and programmability remains the same). I guess I got really lucky, because the J** variants of HP/Agilent power supplies, especially in the right direction (i.e., slightly more voltage vs. slightly less voltage and more current) are very rare.
Hello 6612c video very helpful as I have just calibrated one. Just wanted to test the rs232 output quick but I cannot see it on hyper terminal does the unit need a serial command to start the output.
I am not sure I understand your question. If the physical connections are right, and parameters are right (speed, parity, echo and such), then you send some command, and the unit must reply. If you just connect and listen, nothing will come out.
thank you for your videos! i'm using an arduino nano (max232) and C to get the values (volt? and curr?) from a 6612c power suply. I can get correct readings but I get 5 readings and it stops... forever. the arduino doesnt crash, so i believe the power supply simply stops responding. do you encounter such error while developing your python program?
Hi, I just calibrated the voltage on my 6611C using a well within calibration 6 1/2 digit DMM. Now the voltage readings as set via the PS are within a tolerance of 250-330 uV of the displayed voltage value on the 6611C when not under load (i.e., PS directly to DMM). If you haven't calibrated your two devices and you have the equipment, it's definitely a worthwhile endeavor!
The voltage calibration procedure is as easy as can be, as it usually is on HP/Agilent/Keysight power supplies. You get a low voltage below 1 V and a high voltage of about 8.8 V on my 6611C-J05 and you enter them in via the front keypad. Save and done - you have a calibrated supply (at least voltage wise).
If you were in the "neighborhood" I would do it for you, but sadly you're not (I live in Illinois...)
Unfortunately, current calibration requires a high precision 3W 400 ohm resistor (unobtainium category, part #0811-2878). Maybe I'll see if I can hack something up from multiple parts.
Thanks for making all these videos. Can I use a part of your videos (3-5)min with your voice and a link to your TH-cam video in order to make a reference in my TH-cam video in an Agilent 6612C troubleshooting and reverse engineering?
I wonder if anyone has used an STM32F4 Discovery board for this? I think it would be a good candidate for such a project.
Excellent, thank you.
Wow, thanks for the analysis of this supply. I just bought two 6612C units on eBay. I know that you repaired this one and purchased it broken on eBay. If you don't mind me asking, how much did you pay for your unit a year or so ago?
+SteelBlueVision
I don't quite remember. Around $150 I suppose.
+FeedbackLoop
Thanks, I got both in working order for $300 plus $30 in shipping, so I guess that wasn't a bad deal.
More interestingly, I just also scored a rare beast on eBay: 6611C-J05 for $150 (plus another $30 shipping) in supposed working order. It is the same as 6611C, but goes up to 10V/5A in 3 mV programmable increments (instead of 2 mV on the regular 6611C) (current max and programmability remains the same). I guess I got really lucky, because the J** variants of HP/Agilent power supplies, especially in the right direction (i.e., slightly more voltage vs. slightly less voltage and more current) are very rare.
Hello
6612c video very helpful as I have just calibrated one. Just wanted to test the rs232 output quick but I cannot see it on hyper terminal does the unit need a serial command to start the output.
I am not sure I understand your question. If the physical connections are right, and parameters are right (speed, parity, echo and such), then you send some command, and the unit must reply. If you just connect and listen, nothing will come out.
Hello
thanks for your reply
I did get it to work when I send out the commands I get the information back and I can also get the values back
If you don't like fan noise, don't get a Keithley 2460 then...it can source up to 10 amps of current and the rear fans run up to 15krpm...
thank you for your videos!
i'm using an arduino nano (max232) and C to get the values (volt? and curr?) from a 6612c power suply. I can get correct readings but I get 5 readings and it stops... forever. the arduino doesnt crash, so i believe the power supply simply stops responding. do you encounter such error while developing your python program?
No, I have not seen such a problem.
FeedbackLoop thanks!
by any chance do you know a way to fix “error 1”?
Sorry, no idea