Author Topic: Teardown : Keithley 2510 TEC SMU repair and calibration [complete]  (Read 14388 times)

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Offline ManateeMafia

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Re: Teardown : Keithley 2510 TEC SMU repair and calibration [complete]
« Reply #25 on: March 05, 2015, 01:52:05 pm »
Your post reminded me that I bought a plcc adapter for my 2510 firmware.

I tried the secret menu but my rev A03 fw has no AT enable feature. I backed up my firmware and was going to flash the fw from your website until I noticed you were using the s file format.

Do you happen to have a bin file instead? I tried mot2bin.exe and it gave me a much larger file. I have not used this utility before today. Any help would be appreciated.

I will email you the A03 file when I get a chance.
 

Offline ManateeMafia

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Re: Teardown : Keithley 2510 TEC SMU repair and calibration [complete]
« Reply #26 on: March 05, 2015, 04:24:14 pm »
Never mind, I figured it out. I was able to use my programmer even though it wasn't immediately obvious. I did find another utility that would also work. It is 010 editor.
 

Offline TiN

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Re: Teardown : Keithley 2510 TEC SMU repair and calibration [complete]
« Reply #27 on: March 07, 2015, 02:52:39 am »
I used WinHEX.

Binary was posted before in repository as well: http://dev.xdevs.com/projects/rnd/repository/show/Keithley/2510/firmware
 :bullshit:

Thanks for A03.
I am pretty positive that you may need recalibration, so beware.
« Last Edit: March 07, 2015, 02:54:25 am by TiN »
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Offline ManateeMafia

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Re: Teardown : Keithley 2510 TEC SMU repair and calibration [complete]
« Reply #28 on: March 07, 2015, 10:58:43 am »
You are correct, calibration constants appear to be lost. This is not a big deal, the only caveat is that I don't have a 1ohm 100W resistor. I have the rest in one form or another.

The serial number was also lost. I found your dump of the serial eeprom and it looks like the serial number is stored in the first set of bytes. I have ordered another adapter for my programmer.

I am looking at building a resistor array using some Riedon FPR2A-10RF1 or lower ohm value across a long heat sink. I have found a few enclosures and heat sinks I could mod. I have already done this for another test jig and it turned out fine.

 

Offline TiN

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Re: Teardown : Keithley 2510 TEC SMU repair and calibration [complete]
« Reply #29 on: March 07, 2015, 07:55:14 pm »
You don't really need 100W rated resistor, SMU does not give that much power and it's pretty quick anyway.
I used 7W ones posted in thread above, worked well, and resistor was not even heat up.
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Offline ManateeMafia

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Re: Teardown : Keithley 2510 TEC SMU repair and calibration [complete]
« Reply #30 on: March 07, 2015, 11:33:40 pm »
That is good to know. I have a 1 ohm vhp-4 resistor but it has a max of 3A. I will find something a little beefier without the need for a another major project.
 

Offline ManateeMafia

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Re: Teardown : Keithley 2510 TEC SMU repair and calibration [complete]
« Reply #31 on: March 11, 2015, 04:30:22 am »
TiN,

Have you powered the 2510 through a GFCI outlet? So far, I have only had my 2510 trip the breaker. It happens almost immediately so it makes me think the SMPS inside the 2510 is causing the issue.

I only have one GFCI in the room and I will probably pick up a different adapter but I would like to know if you had any experience with this.
 

Offline TiN

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Re: Teardown : Keithley 2510 TEC SMU repair and calibration [complete]
« Reply #32 on: March 11, 2015, 04:55:32 am »
I had to google what is that first. :)
No, i power all my gear from standard earthed outlets, which run into standard apartment breakers. Its 110VAC 60Hz here in Taiwan.
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