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EDA => Circuit Studio => Topic started by: voltsandjolts on January 12, 2020, 02:31:32 pm

Title: Example Project: Relay scan card for K2000 DMM
Post by: voltsandjolts on January 12, 2020, 02:31:32 pm
Even though it is long-in-the-tooth, I like my Keithley 2000 and a scan card is a useful add-on.

CircuitStudio project attached, should import to newer versions of Altium OK.
PDFs/Gerbers also included.
Title: Re: Example Project: Relay scan card for K2000 DMM
Post by: voltsandjolts on January 23, 2020, 08:03:52 pm
Here is a crude Python script to log scan card channels to CSV using the K2000 serial interface.
Tested with above card.
I recommend pyvisapy backend, works, small size.
Title: Re: Example Project: Relay scan card for K2000 DMM
Post by: zekeymonkey on May 08, 2020, 07:09:08 pm
That looks great.

Also, I wouldn't describe a  Keithley 2000 as long in the tooth. Now, my HP 3455A is long in the tooth.
Title: Re: Example Project: Relay scan card for K2000 DMM
Post by: skander36 on April 12, 2021, 10:36:31 am
Hello,
This card should also work with DMM6500 ?
Thank you !
Title: Re: Example Project: Relay scan card for K2000 DMM
Post by: voltsandjolts on April 12, 2021, 11:03:24 am
Yes, it does.

FYI there is also this card:
https://www.eevblog.com/forum/circuit-studio/example-project-20-channel-solid-state-scan-card-for-k2000-dmm/ (https://www.eevblog.com/forum/circuit-studio/example-project-20-channel-solid-state-scan-card-for-k2000-dmm/)
Title: Re: Example Project: Relay scan card for K2000 DMM
Post by: skander36 on April 12, 2021, 12:26:15 pm
Ok. Thank you very much !
Maybe I will do also the 20 channel card in the future, but for my needs I have choose to build this model.
In fact I have already made it m but I have realized that the model 2001-TCSCAN is a little different and need to be sure .
Thank you very much for your work !


P.S.There are 4 PCB's left  for everyone need it.
Do you have a 3D model for the clamp ? To print it ?
Title: Re: Example Project: Relay scan card for K2000 DMM
Post by: samofab on April 12, 2021, 08:33:59 pm
I see you populated R145 and R146 - these are optional, check original manual.
I also have 4 leftover board if somebody wants them :-)
Title: Re: Example Project: Relay scan card for K2000 DMM
Post by: skander36 on May 02, 2021, 05:52:52 pm
Yes you are right, I did not pay attention to them.
I picked them from BOM.
Title: Re: Example Project: Relay scan card for K2000 DMM
Post by: TCD330 on May 05, 2021, 07:19:29 pm
Thank you for sharing!

I took a differnet approach and "saved" the terminal blocks. Since the original 20-channel card could do with a 44-pin DSUB, I found I could use a good quality 25-pin. I have very limited space behind the instrument, so I moved it inside of the case. A pluggable connection is better for me, and it seems to be OK for my use.