Problem with a microhardness tester MHT-1,from japan
Problem with a microhardness tester MHT-1,from japan
(OP)
Hi guys,
what do you think could be the problem with a micro hardness tester that i'm using because i seem to be getting wrong values(between 800 HV and 900 HV) compared to the calibrations that were done(which are from 695-705 HV).
any suggestion or solution to what the probllem might be will be appreciated.
what do you think could be the problem with a micro hardness tester that i'm using because i seem to be getting wrong values(between 800 HV and 900 HV) compared to the calibrations that were done(which are from 695-705 HV).
any suggestion or solution to what the probllem might be will be appreciated.





RE: Problem with a microhardness tester MHT-1,from japan
RE: Problem with a microhardness tester MHT-1,from japan
RE: Problem with a microhardness tester MHT-1,from japan
Have you looked at the indenter under magnification? Make sure that it isn't chipped.
Double check the weights. If they are internal one may be caught and not loading.
Either of these will give you high readings.
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Plymouth Tube
RE: Problem with a microhardness tester MHT-1,from japan
RE: Problem with a microhardness tester MHT-1,from japan
If you are out of the allowable tolerance range when you test a traceable calibration specimen, then you will need to recalibrate the optics of your system until you are in tolerance.
Aaron Tanzer
www.lehightesting.com