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Can you advise on a problem we are having with a model 35DL thickness meter and M112 UT probe?
Calibration of 35DL on standard steel test plates is OK
We calibrate the unit on ceramic tiles coated with Silicone RTV coating. One sample at around 250 microns and the second at around 500 microns. This calibration is fine and the instrument reads correctly.
When we check the reading of Silicone on ceramic insulator, we get 2.420 mm instead of 0.420 mm etc. This erroneous "2" just appears. No idea what to do to eliminate this.
Please advise what could be wrong.
Currently I am trying to have this 35DL and M112 probe checked with an identical unit, however this may take time to bring the two units together.
My suspicions are with the Probe itself rather than the 35DL, however I cannot be sure until I check with another unit.
I will update with further information when I have it to hand.
Further to earlier reply:
We tried the M112 probe along with its cable on a known good 35DL unit and this worked just fine.
The problem we are having is with the 35DL itself.
Since there has not been an answer, yes close the question