New Keithley DMM6500 and now DAQ6510

[mawyatt]

We've had our DMM6500 lock-up a few times over the past couple years, and recall it was something graphing related, but not enough times to be of concern or make note of.

Since you've indicated this only happens with the graphing function and everything else is fine, leads one to consider a hardware issue that becomes relevant only when the graphing is enabled which might point to some unique graphics memory or logic use. Having the issue over different firmware revisions also points to some graphics related hardware problem.

As you've discovered these Keithley DMMs (also the KS34465As) are in another class of DMM instruments and why we have both types!!

Anyway, hope you can get this graphing issue worked out, this is where the Keithley stands out

Best 

[KungFuJosh]

Anyway, hope you can get this graphing issue worked out, this is where the Keithley stands out

Thanks Mike, I hope so too! I just watched this video: https://youtu.be/Lezd27BzQLo?feature=shared&t=1926 - and yeah, the graphing looks pretty awesome.

Thanks,
Josh

[thm_w]

The front is easy to take off, it looks like there are two sets of DDR2 ram: https://xdevs.com/doc/Keithley/DMM6500/lukier/fpback.jpg
Maybe one is for graphics processing, the other for buffering data?

[KungFuJosh]

A rep from Tek has gotten back to me. She said "there has been intermittent issues with other customers" and they're trying to reproduce the issue there. Hopefully they figure it out quickly so I can use the feature once and then ignore it for a while. 😉

[2N3055]

A rep from Tek has gotten back to me. She said "there has been intermittent issues with other customers" and they're trying to reproduce the issue there. Hopefully they figure it out quickly so I can use the feature once and then ignore it for a while. 😉

That is at least some good news.
Let's hope it produces some usable results..i.e. a fix.

[Hydron]

Yeah the graph isn't one of those try then ignore features. Sure it can be pretty annoying trying to get the right scale using the touchscreen or the very limited controls, but it's also incredibly handy when you just need a quick trend display or something and don't want to dump and analyse the data on another system, especially given that you can leave it on in the lower area while keeping the big main current-value display above.

[KungFuJosh]

The front is easy to take off, it looks like there are two sets of DDR2 ram: https://xdevs.com/doc/Keithley/DMM6500/lukier/fpback.jpg
Maybe one is for graphics processing, the other for buffering data?

According to the declassification guide, they're cleared when the device is power cycled.

[KungFuJosh]

I made a breakout panel with my "laser." Now I just need the scanner cards to arrive.