910-257C March 2006
Page 3-10 MG2 Series
metal and the velocity of the coating.
Use the steps below to calibrate for the sound velocity of the steel and
the coating.
Note: Unless absolute accuracy of the coating thickness is
required, it is not necessary to perform this calibration.
Not performing this calibration will not affect the accu-
racy of the steel thickness measurement, and will affect
only the accuracy of the coating measurement.
Step 1: Couple the transducer to a thick calibration block. Press
[CAL VEL] while in the THRU-COAT Measurement
mode.
Step 2: Press [ENTER] when the reading is stable.
Step 3: Uncouple the transducer from the material and enter the
thickness of the block using the [ , , , and ]
slewing keys.
Step 4: Couple the transducer to a thin calibration block. Press
[CAL ZERO].
Step 5: Press [ENTER] when the reading is stable.
Step 6: Uncouple the transducer from the material and enter the
thickness of the block using the [
, , , and ]
slewing keys. Press [CAL VEL].
Step 7: Couple the transducer to a sample with a known coating
thickness when the reading is steady and press [ENTER].
Step 8: Uncouple the transducer from the material and enter the
thickness of the coating using the [
, , , and ]
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