Checkline FH Series User Manual

Page 17

5. Measure Mode

5.1 Important Notes on Thickness Measurement

Make sure that the operator has been properly instructed regarding the use of thickness gauges

and has basic knowledge of the specific requirements for measurement of the application. The

operator should have basic knowledge of the following:

•

Selection of a measuring device suitable for his application

•

Fundamentals on the magneto-static measuring principle

•

Influences on the magnetic fields through the surrounding field

•

Influence of the surface properties of the material to be tested (roughness, build-up on the

surface)

•

Statistical evaluation of measuring series

•

Gravity influencing the reference ball

5.1.1 Limitations to magneto-static thickness measurement

The information obtained from thickness measurements according to the magneto-static principle

only refer to those parts of the test object that have been covered by the magnetic sensor. For that

reason, be careful to draw conclusion on other parts of the measuring object that have not been

covered by the sensor during measurement. In general, such conclusions are only admissible if

comprehensive experience and approved methods of statistical data acquisition are available.

5.2 Batch Configuration / Necessary Settings

Before taking readings, it is necessary to make a few settings in the Configuration menu. The

Configuration always refers to a certain measuring series (Batch).

5.2.1 Batch

You can continue to take readings in the active batch

You can create a new batch (only with MiniTest 7400 FH model)

You can choose an exiting batch from the database (please refer to section 7.2).