Keithley DMM6500 Scanner Card - first impressions

RE: Keithley DMM6500 Scanner Card - first impressions

Jan Cumps — Thu, 09 Feb 2023 19:52:32 GMT

I added the specs to the post [emoticon:cec320a8770c4fe19d8488ed818762a1]

RE: Keithley DMM6500 Scanner Card - first impressions

DAB — Thu, 09 Feb 2023 19:17:31 GMT

What is your long range plan for the card and capability?

RE: Keithley DMM6500 Scanner Card - first impressions

Jan Cumps — Wed, 08 Feb 2023 19:23:32 GMT

What I'm trying to do:

@ghoug had a question about how often the relays were used before I bought the card.
The DAQ6510 has an app to check the click counts. That app doesn't run on the DMM6500, and doesn't know the SCAN-2000 card. I try to port it.

Current status: I can detect the card,

And get its specifications, but not (yet?) the click count.

I didn't read docs or check anything. I try to wing it by just looking at the code and massage it. I haven't checked if my card actually stores the click counts per relay...

RE: Keithley DMM6500 Scanner Card - first impressions

Jan Cumps — Wed, 08 Feb 2023 19:08:56 GMT

Current status: debugging an automation script:

The script runs on the DMM6500, debugger on my laptop.
What a time to be alive

RE: Keithley DMM6500 Scanner Card - first impressions

baldengineer — Wed, 08 Feb 2023 03:34:37 GMT

Do you have a measurement you'll use it for? Or just excited to have it available on your bench now?

RE: Keithley DMM6500 Scanner Card - first impressions

dougw — Wed, 08 Feb 2023 02:51:58 GMT

That meter can no doubt measure the contact resistance of the relays....

RE: Keithley DMM6500 Scanner Card - first impressions

Gough Lui — Tue, 07 Feb 2023 21:56:09 GMT

I'm surprised you didn't actually build one - I'm aware of Cozscan2020 which seems like a pretty decent choice if you were to DIY:
https://github.com/cozdas/CozScan2020

It's nice that Keithley has compatibility with such a wide variety of (and some old) scanner cards. One hesitation I would have buying second hand is simply the amount of wear on the relays. Then again, I suppose you could just replace them yourself when the time comes ...

- Gough