Krautkramer DM4E - 1-Point Calibration

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5-6 Issue 05, 01/01 Krautkramer DM4E / DM4 / DM4 DL

Operation Calibrating the instrument

1-point calibration

If the sound velocity is known or if you wish to check

calibration, carry out a 1-point calibration.

For this you need a calibration block having a known

thickness and made of the same material as the test

object

H Note:

1-point calibration can only be carried out when the

2-point calibration is switched off.

Operation:

– Make certain that the thickenss mode (THK) is

displayed.

– Press c.

CAL flashes:

– Couple the probe to the calibration block and make

certain that the coupling symbol appears.

The measurement value appears in the display. Make

certain that the indication is stable.

For example:

You can now uncouple the probe because the measure-

ment value will remain after coupling.

– If the measured value does not correspond with the

thickness value of the calibration block, correct the

value using u or d, e.g. with a thickness of 5 mm:

– Acknowledge the new value with c.

The instrument is now calibrated. You can now carry

out thickness measurement.