B
Bigfoot
I am looking for some information / assistance in the use and calibration of ultrasonic micrometers.
We have been using an ultrasonic micrometer to verify the thickness of a coil steel strip in our pickling line. The US Micrometer calibration frequency was 365 days. We send it out for "calibration" to original place of purchase, also a 17025 cal lab. When it came back from them we started having some on and off problems with it's readings running from .003" / .010" higher than it should have been reading. Inquiries to the Calibration & Sales source resulted in us being told that we have to use the alloy compensation in order to get accurate readings in different grades of mild steel, (ie:1010 - 1050, 050, etc), which we have never done.
We have gone back to a manual check of the strip using a deep throat micrometer until we can resolve this issue and develop a degree of confidence in it's output.
We are using a CL 400 - Krautkramer. Any help we can get will be greatly appreciated.
We have been using an ultrasonic micrometer to verify the thickness of a coil steel strip in our pickling line. The US Micrometer calibration frequency was 365 days. We send it out for "calibration" to original place of purchase, also a 17025 cal lab. When it came back from them we started having some on and off problems with it's readings running from .003" / .010" higher than it should have been reading. Inquiries to the Calibration & Sales source resulted in us being told that we have to use the alloy compensation in order to get accurate readings in different grades of mild steel, (ie:1010 - 1050, 050, etc), which we have never done.
We have gone back to a manual check of the strip using a deep throat micrometer until we can resolve this issue and develop a degree of confidence in it's output.
We are using a CL 400 - Krautkramer. Any help we can get will be greatly appreciated.