Help with Wilson Rockwell Hardness Tester

Dave Hodson · Aug 20, 2017

I recently picked up a Wilson Rockwell hardness tester (Model 3JR) and was wondering if it can be calibrated.

I figured out how to use it and my calibrated test block reads fine so i'm okay but I was just wondering if there was a way to calibrate them in the event that it starts to wander off the test block.

Thanks for any help you can give me

Dave

moonlight machine · Aug 20, 2017

Dave Hodson said:
I recently picked up a Wilson Rockwell hardness tester (Model 3JR) and was wondering if it can be calibrated.

I figured out how to use it and my calibrated test block reads fine so i'm okay but I was just wondering if there was a way to calibrate them in the event that it starts to wander off the test block.

Thanks for any help you can give me

Dave

Just go online, you can download a manual, that is what I did.

Dave Hodson · Aug 21, 2017

Hi and thanks for your reply

I did that but none if the ones I found had anything about calibrating the tester itself. I read the test block fine and the value matches the documentation that came with block but if the machine wasn't reading the value, I don't know how I'd adjust the tester to read differently.

If you have a manual that shows how, could you summarize it for me?

Regards
Dave

Ray Behner · Aug 21, 2017

Hi Dave,
Welcome to PM. I've got a TT which is quite similar to yours. In the manual, they have a testing procedure for calibration. It starts on page 20. You can download this manual....good luck!
http://www.amet-me.mnsu.edu/userfilesshared/Equipment_Manuals/TE_110/Rockwell Hardness Tester.pdf

Oops. Sounds like I 'm referring to mine. Nope, this is your model. Print it out, go in the house , grab a beer and start readin'.

Dave Hodson · Aug 21, 2017

HI Ray

Thanks very much for your post and the link. This might take two beers.

Regards
Dave

Davis In SC · Aug 21, 2017

I once had that same tester... The tech from the gage house that calibrated it said as follows. If it is only a point or 2 off, don't touch it.. Very difficult to get both high and low ends right...

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Help with Wilson Rockwell Hardness Tester

Dave Hodson

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moonlight machine

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Dave Hodson

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Ray Behner

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Dave Hodson

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Davis In SC

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