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  • Author Author: Jan Cumps
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Keithley DMM6500 Scanner Card - first impressions

Jan Cumps
Keithley DMM6500 Scanner Card - first impressions

I road tested the  Keithley Bench Digital Multimeter DMM6500. I recently purchased a 2000-SCAN 10 channel scanner card. This is my fist little test after receiving it.

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I bought a 2nd hand card. 250€ on eBay. It's the relay version (there's also a solid-state version).
It can switch 10 2-wire inputs. For low resistance measurements, you can make 5 4-wire measurements. 

Photos

At the top of the post, you see the front side with the lid closed. Here is the same view with that lid open.

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This is the unspectacular underside:

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Wiring it up

I've wired channel 1 and 6 up. So that I can do 2 2-wire measurements or one 4-wire one.

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Then plugged the card into the DMM dock:

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I connected the 2 channels to a power supply. Channel 1 to a 1V dc output. Channel 2 to 1.5V dc.

Specs

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Setting up a simple scan

I defined a DC Volt scan for both, taking 1 sample on each channel

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Then I used the Channel App, and ran the scan:

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Simple start, but it worked as expected.

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Parents

  • 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,

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

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    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...

  • in reply to Jan Cumps

    I got it working. Unfortunately, this card doesn't persist the click count (it's supported on some counts for the 7xxx series, but not for this one). I can use it to see how many times the relays were used until power cycle.

    Here is the output after I ran 1 scan on channel 1 and 6:

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