Measuring principle
This paragraph instrument used has magnetic and Eddy two species measuring thick method, can lossless to measurement magnetic metal matrix (as steel, iron, alloy and hard magnetic steel,) Shang non-magnetic cover layer of thickness (as aluminum, chrome, copper, enamel, rubber, paint,) and the non-magnetic metal matrix (as copper, aluminum, zinc, Tin,) Shang non-conductive cover layer of thickness (as: enamel, rubber, paint, plastic,).
A) magnetic method (F type)
When the probe contact with the cover, the measuring head and the magnetic substrates form a closed magnetic circuit, due to the presence of non-magnetic coatings, changes in the magnetic circuit reluctance, by measuring changes in its export cover thickness.
B) Eddy current method (N-probe)
High-frequency alternating current in a coil generates a magnetic field, when the probe contact with the cover, and Eddy on the metal substrate, and feedback on the coil in the probe, size can be derived by measuring the feedback effects of the thickness of the cover layer.
Features
1.Method using both magnetic and Eddy current thickness, you can measure the thickness of non-magnetic coatings on magnetic substrates and measurements of non-conductive coatings on non-magnetic metal substrate thickness;
2. You can use 10 types of probe (F400, F1, F1/90 °, F5, F10, N400, N1, N1/90 °, CN02, N10);
3... Has two measuring modes: continuous measurement (CONTINUE) and the single measurement mode (SINGLE);
4.Has two operating modes: direct method (DIRECT) and a burst mode (a-b);
5.Five statistics: the average (MEAN), maximum (MAX), minimum (MIN), the number of tests (NO.) and the standard deviation (S. DEV);
6.Using single-point calibration and two-point calibration method for calibrating the instrument, and basic calibration of probe system error correction;
7.With storage function: stored 495 measurements;
8.Delete function: the measurement of a single suspicious data is deleted, you can also delete all data within the storage area in order to make new measurements;
9.Limits that can be set: automatic gauge measuring value outside of alarm;
10... With low supply voltage indication;
11.Procedure beep tips;
12... Has the wrong function, through onscreen or beep for error;
13.A shutdown in two ways: manual shutdown mode and the automatic shutdown mode.