Author Topic: (Video) Keithley 2450 Source Measure Unit (SMU) Review and Experiments  (Read 19564 times)

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Offline dr.diesel

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Re: (Video) Keithley 2450 Source Measure Unit (SMU) Review and Experiments
« Reply #50 on: February 12, 2015, 12:46:11 am »
I've run into many bugs myself.  Navigating the trends, log files, output button hard locking energized.

I've had to power cycle the unit dozens of times to recover.

Offline Hugoneus

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Re: (Video) Keithley 2450 Source Measure Unit (SMU) Review and Experiments
« Reply #51 on: February 12, 2015, 02:24:08 am »
I've run into many bugs myself.  Navigating the trends, log files, output button hard locking energized.
I've had to power cycle the unit dozens of times to recover.

Did you install the latest firmware?
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Offline economist

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Re: (Video) Keithley 2450 Source Measure Unit (SMU) Review and Experiments
« Reply #52 on: February 12, 2015, 03:00:14 am »
I experienced the auto-range issue when using the 2450 to power a small RC receiver for some tests. The receiver was resetting over and over as the 2450 was auto-ranging (set up as a fixed voltage source measuring current). All was well when I set the current range manually.
 

Offline Hugoneus

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Re: (Video) Keithley 2450 Source Measure Unit (SMU) Review and Experiments
« Reply #53 on: February 12, 2015, 03:21:26 am »
Ok, I replicated the problem. I will contact the engineer at Keithley and see what they say. I will report back.
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Offline SteveyG

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Re: (Video) Keithley 2450 Source Measure Unit (SMU) Review and Experiments
« Reply #54 on: February 12, 2015, 07:31:49 am »
Ok, I replicated the problem. I will contact the engineer at Keithley and see what they say. I will report back.

Great, I've contacted ours in the UK too to see what they say.

Offline dr.diesel

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Re: (Video) Keithley 2450 Source Measure Unit (SMU) Review and Experiments
« Reply #55 on: February 12, 2015, 01:10:41 pm »
Did you install the latest firmware?

Oooooo, thank you, I'd not checked in a couple weeks, glad to see they squeaked this out:   :-+

Latest version = 2450_v1_2_0f

Offline economist

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Re: (Video) Keithley 2450 Source Measure Unit (SMU) Review and Experiments
« Reply #56 on: March 06, 2015, 02:00:21 am »
Did anyone get a response from Keithley on the ranging issue?
 

Offline dr.diesel

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Re: (Video) Keithley 2450 Source Measure Unit (SMU) Review and Experiments
« Reply #57 on: August 10, 2015, 01:07:29 pm »
Sure wish one could subscribe to firmware updates!

Anyhow, version v1.3.0s is out.


Offline robrenz

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Re: (Video) Keithley 2450 Source Measure Unit (SMU) Review and Experiments
« Reply #58 on: August 10, 2015, 01:50:53 pm »
I will be loading the new firmware shortly.  It adds a lot of very nice features which make it more identical to the 7510 DMM on the graphing features. I will do a video of the improvements.

Offline dr.diesel

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Re: (Video) Keithley 2450 Source Measure Unit (SMU) Review and Experiments
« Reply #59 on: August 10, 2015, 02:32:21 pm »
I will be loading the new firmware shortly.  It adds a lot of very nice features which make it more identical to the 7510 DMM on the graphing features. I will do a video of the improvements.

Ya, loaded this morning, a VERY nice upgrade, still playing around.  I'm very pleased that Keithley is dedicated to continuous improvement, I bet we still have lots to come.  Perhaps even the FFT that Shahriar mentioned in the 7510 review.

Offline HighVoltage

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Re: (Video) Keithley 2450 Source Measure Unit (SMU) Review and Experiments
« Reply #60 on: August 10, 2015, 11:30:11 pm »
Ya, loaded this morning, a VERY nice upgrade, still playing around.  I'm very pleased that Keithley is dedicated to continuous improvement, I bet we still have lots to come.  Perhaps even the FFT that Shahriar mentioned in the 7510 review.
I also updated the FW on my 2450 a couple weeks ago and was very much impressed by the features and the new handling capabilities. It seems like Keithley is putting great effort in to the feature updating in new FW releases.
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Offline dr.diesel

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Re: (Video) Keithley 2450 Source Measure Unit (SMU) Review and Experiments
« Reply #61 on: March 26, 2016, 12:56:17 pm »
Firmware bump, 1.5g is out for both the 2450 and 7510. 

Offline HighVoltage

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Re: (Video) Keithley 2450 Source Measure Unit (SMU) Review and Experiments
« Reply #62 on: March 26, 2016, 02:35:57 pm »
Firmware bump, 1.5g is out for both the 2450 and 7510.
Thanks for the info.
It looks like a long list of corrections:
http://www.tek.com/sites/tek.com/files/media/media/resources/2450-Release-Notes.pdf


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Offline shodan@micron

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Re: (Video) Keithley 2450 Source Measure Unit (SMU) Review and Experiments
« Reply #63 on: March 24, 2019, 06:19:28 am »
 

Offline TiN

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Re: (Video) Keithley 2450 Source Measure Unit (SMU) Review and Experiments
« Reply #64 on: March 24, 2019, 06:26:44 am »
Thumbs up for effort, but I cannot help myself to ask "why?".  :-//
K2450 already have proper triax ports for properly guarded connections. I'd be also concerned with thermal issues with so much metal at the meter inputs.

If your DUT measurement results affected enough that you need shielding, it would make better results from properly guarded wiring as well.
« Last Edit: March 24, 2019, 06:28:27 am by TiN »
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Offline shodan@micron

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Re: (Video) Keithley 2450 Source Measure Unit (SMU) Review and Experiments
« Reply #65 on: March 24, 2019, 06:28:24 am »
Thumbs up for effort, but I cannot help myself to ask "why?".  :-//
K2450 already have proper triax ports for properly guarded connections.
I allready use rear panel for connect to my .

That cable for front panel.
« Last Edit: March 24, 2019, 06:57:49 am by shodan@micron »
 

Offline shodan@micron

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Re: (Video) Keithley 2450 Source Measure Unit (SMU) Review and Experiments
« Reply #66 on: March 24, 2019, 06:56:52 am »
thermal issues with so much metal at the meter inputs.
For minimize that issues that cable use MC/Staubli 22.1053 banana plug with gold-to-gold connection on pcb. Also use wherewer i can gold-to-gold and gold-to-silver connections.

But thermal EMF not critical for my purposes on front  panel.
« Last Edit: March 24, 2019, 07:02:34 am by shodan@micron »
 

Offline HighVoltage

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Re: (Video) Keithley 2450 Source Measure Unit (SMU) Review and Experiments
« Reply #67 on: March 24, 2019, 09:22:54 am »
Looking forward to your measurement results.
What is your plan? What do you want to measure like this ?
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Offline shodan@micron

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Re: (Video) Keithley 2450 Source Measure Unit (SMU) Review and Experiments
« Reply #68 on: March 24, 2019, 09:53:51 am »
What do you want to measure like this ?
Custom stuff with sma input/output connectors... Emulate power supply, low current load testing and more...

Looking forward to your measurement results.
Maybe later...
 


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