Epson USN 52R - Measuring Thickness

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5-34 Issue 05, 02/00 Krautkramer USN 52R/USN 52L

5.7 Measuring thickness

USN 52R/USN 52L enable you to measure thickness

and distance in a simple way. The measured value is

directly displayed. One of the following two methods of

measurement is used, depending on the application:

• Measurement to the first echo – e.g. corrosion

measurement with a dual (T/R) probe

• Measurement of the multi-echo sequence with a

single- element probe on a test object which has a

good surface on both sides

Preparations

– Select probe

– Set MEASURE (refer to previous section)

– Select TOF (refer to Page 5-9)

– Calibrate A-scan display

– Calibrate the USN 52 R for the selected probe and

the measurement mode (refer to previous section)

Measuring the thickness

– Clean the surface of the test object from dirt and any

loose particles

– Apply couplant to the surface of the test object

– Using slight and even pressure, couple the probe

– Observe A-scan display and S=...”-value until the

measured value display is stable

– Maximize the echo amplitude

– Read measured value

H Note:

If you are operating with MULTECHO in MEASURE,

observe Gate b in order to evaluate the correct echo.

You can store the displayed measurement values in the

Data Logger or transfer them into another instrument

via the RS232 interface.

Operation Measuring thickness