MAGNATEST brochure

Product catalog summary

Introduction
The MAGNATEST® is a non-destructive testing instrument designed for evaluating metallic materials based on their magnetic and electrical properties using the magneto-inductive method. It is particularly effective for testing semi-finished products such as tubes, bars, wires, and billets.

Testing Methodology
The instrument operates by exposing the test part to a magnetic field, inducing eddy currents in electrically conductive materials. For ferromagnetic materials, magnetization occurs. The induced voltage in the receiver winding is influenced by the material's electrical conductivity and magnetic properties, which are affected by factors like hardness, alloy content, and grain structure. The method allows for selective observation of core and surface characteristics by adjusting excitation frequency and amplitude.

Multi-Frequency Testing
The MAGNATEST DH-HZP employs simultaneous multi-frequency testing, which enhances test reliability and speed compared to serial multi-frequency testing. This approach allows for a higher number of measured values along a test piece, improving the overall result. The excitation signal is optimized automatically, and the test speed is determined by the lowest frequency component.

Features
The MAGNATEST D-HZP/DH-HZP features a processor-controlled test system, single-coil absolute operating mode, constant excitation current, and high output current amplitude for sensitivity. It supports multi-frequency testing for reliability and simultaneous multi-frequency testing for speed. The system is easily integrated into testing lines and compatible with various FOERSTER flaw testers.

Integration and Software
The instrument can be integrated with FOERSTER's testing systems, allowing for centralized settings and summarized test result displays. It includes features like statistically calculated sorting gates, dynamic calibration mode, trend tracing, and a user-friendly interface with standard peripheral interfaces.

Contact Information
Institut Dr. Foerster GmbH & Co. KG, Division TS Semi-finished Product Testing, In Laisen 70, 72766 REUTLINGEN, GERMANY. Phone: +49 7121 140-270, Email: [email protected], Website: www.foerstergroup.de

Catalog excerpts

SEMI-FINISHED PRODUCT TESTING metallic materials for their different magnetic and/or method. The part under test parameters like hardness, alloy content and grain those parameters is partic- netic properties. Choosing Scheme to magneto-inductive method. field. Eddy currents are induced within the electri- cally conductive material. tested. The voltage induced hysteresis curve (magnetic property). Since the hyster- esis curve itself is strongly allows selective observation of core and surface charac- teristics (skin effect). of tubes, bars, wire, billets with serial multi-frequency MAGNATEST DH-HZP...

Open the catalog to page 2

INTEGRATION IN TESTING LINES With courtesy of Edel- stahlwerke Sudwestfalen Siegen, Germany. • Processor controlled test • Single-coil absolute operating mode, therefore • Constant excitation current; therefore defined magnetic field over the whole test • High output current size of the hysteresis loop better reliability • Simultaneous multi- highest test speed (with option DH-HZP) testing lines and complete FOERSTER Flaw Testers • Statistically calculated sorting gates according calibration pieces calibration mode tracing during test mode • Simple operator interface specific function keys and...

Open the catalog to page 3

Printed in Germany 05/2007 • Order No. 1843370 • Edition 05/2007 ® Registered Trademark • © Copyright Institut Dr. Foerster GmbH & Co. KG • Subject to modification Institut Dr. Foerster GmbH & Co. KG Division TS Semi-finished Product Testing In Laisen 70 72766 REUTLINGEN GERMANY Phone +49 7121 140-270 Fax +49 7121 140-459 [email protected] www.foerstergroup.de

Open the catalog to page 4

All Foerster Instruments catalogs and technical brochures

Archived catalogs

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

Brand list