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Sensor system H leaflet
Sensor system H leaflet
The DEFECTOTEST® Sensor Systems H are designed for non-destructive flaw testing of non-ferromagnetic semi-finished products. They utilize the eddy-current method in compliance with DIN 54 140 standards to inspect tubes, bars, and wires, accommodating material diameters from under 1 mm to approximately 100 mm.
The sensor system is centrally positioned in the testing line, using round or saddle test coils in a multi-difference connection to detect surface flaws with high sensitivity. An additional absolute winding detects extended discontinuities, and protective guides prevent mechanical damage to the test coil.
Two sensor systems are available: H 40 (0.3 to 44 mm) and H 90 (1.2 to 100 mm). The system includes a coil holder, test coil, and protective guides. A test coil adapter can extend the H 90 range downwards to 1.2 mm. The choice of test coils and guides depends on the material's geometry and guiding device accuracy.
Coil holders are compact and robust, allowing easy installation. They consist of an aluminum base plate with vertical uprights for the test coil and guides. The H 40 holder can rotate 90° for easier adjustments.
Test coils are mounted in the holder and protected by a durable plastic coating. They connect to electronic test equipment via a cable. Various diameters and adapters are available.
Made of plastic, these guides protect the test coil and ensure proper positioning. They are available in sets for different diameter ranges and can be customized for precision guiding.
These sensors suppress entry and exit signals evaluated as flaws. A reflex light barrier is used, positioned at the entry side of the sensor system.
Both sensor systems operate within a test frequency range of 1 to 1000 kHz and can handle non-ferromagnetic materials at temperatures up to 80°C for continuous testing. The dimensions and mass vary between the H 40 and H 90 systems.
Detailed ordering information is provided for components such as coil cables, test coils, and nozzles, with part numbers and mass specifications.
The document lists various components such as nozzles and test coils with their nominal sizes, part numbers, and order numbers. Nozzle sizes range from 72 to 100 mm, and test coils range from 47 to 100 mm.
References to test piece sensors and sensor cables indicate procedures for testing or measurement.
For special problems, contact Institut Dr. Foerster GmbH & Co. KG in Reutlingen, Germany. Contact details include phone, fax, and email for different divisions.
Leaflets are available in German and English for the sensor system. The document notes that information and illustrations may change.
The document provides detailed part numbers and order numbers for each component, which are critical for ordering and inventory management.
Catalog excerpts
DEFECTOTEST® Sensor systems H 2.859/2.860 Application The sensor systems H for the DEFECTOTEST® system are used for the non-destructive flaw testing of non-ferromagnetic semi-finished products. In conjunction with DEFECTOMAT® testers it is possible to test tube, bar and wire of round or profile cross-section in a continuous pass by the eddy-current method according to DIN 54 140. The sensor systems H cover the material diameter range from under 1 to approx. 100 mm. Fig. 1 Sensor systems H 90 and H 40
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Method of operation The sensor system H is placed at a suitable point in the testing line so that the material to be tested passes through it centrally. There are several types of test coils which can be used in the sensor system. The most commonly used are round or saddle test coils in multi-difference connection. The difference connection causes adjacent areas of material to be compared. The difference coil will detect short, sharp surface flaws with great sensitivity. Its detection of extended flaws depends on the local variations in size. In addition to the difference windings all test coils...
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Test coils The test coils are mounted either directly or by means of coil adapters in the test coil holder and located in the working position of the test coils is positively located by a slot at the side. The extremely robust construction is adequate for the demands of rough industrial use. The test coils are protected against mechanical damage by an elastic, hardwearing plastic coating. There is a socket for connecting the test coil directly to the electronic test equipment by means of a cable. The various diameters and adpaters are given in the ordering informations. Test coils and protective...
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Protective guides The protective guides preferably used in the sensor systems H are made of plastic. Two guides are needed depending on the diameter (entry and exit). They protect the test coil against mechanical damage (e. g. bent material, variations in diameter or roughly sheared ends) and centralize and locate the test coil in the working position. It should be ensured that the nominal diameters of the protective nozzles and the test coils correspond. The complete protective nozzle set is available from 0.3 to 44 mm or from 1.2 to 100 mm for the sensor systems H40 and H90 respectively. Detailed...
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Ordering informations sensor system H 40 2.859.01 - 01/01 7 Item Designation Part-No. Mass [kg] 1 Coil cable 10m EM V 2.899.51-1110 approx. 3.3 2 LMD test coil 1,2 to 44 mm nominal-Ø 2.891.30-0012 bis -0440 approx. 1.0 5 Coil holder H 40 2.859.02-1001 approx. 9 7 Nozzle 1,2 to 44 mm nominal-Ø Nozzle 0,3 to 5,6 mm nominal-Ø Entry nozzle Exit nozzle 2.859.01-2012 bis -2440 2.859.02-2003 bis - 2056 for HD coil 2.859.12-2000 2.859.12-2001 0.05 to 0.4 13 a 13 b Test piece sensor, H 40 left Test piece sensor, H 40 right 2.859.01-6020 2.859.01-6030 approx. 0.8 approx. 0.8 14 2.840.01-9901 approx. 1.2...
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NOZZLE, NOM.SIZE 43 2.859.01-2430 1454560 NOZZLE, NOM.SIZE 44 2.859.01-2440 1019520 Protective nozzles for precision guiding (inside polished, nominal size according to order) ENTRY NOZZLE, NOM.SIZE 2 -36 2.859.12-2000 1651200 EXIT NOZZLE, NOM.SIZE2 - 36 2.859.12-2001 1658310 LMD TEST COIL, NOM.SIZE 1.2 2.891.30-0012 1436597 LMD TEST COIL, NOM.SIZE 2.2 2.891.30-0022 1436600 LMD TEST COIL, NOM.SIZE 3.2 2.891.30-0032 1436619 LMD TEST COIL, NOM.SIZE 4.2 2.891.30-0042 1436627 LMD TEST COIL, NOM.SIZE 5.2 2.891.30-0052 1436635 LMD TEST COIL, NOM.SIZE 6 2.891.30-0060 1436643 LMD TEST COIL, NOM.SIZE...
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STANDARD COMPONENTS COIL HOLDER H 90 2.860.01-1001 1020102 TEST PIECE SENSOR, H90 LEFT 2.860.01-6020 1590316 TEST PIECE SENSOR, H90 RIGHT 2.860.01-6030 1590324 COIL CABLE 10M, EMV 2.899.51-1110 1381610 TEST PIECE SENSOR CABLE 10M, ONE-SIDE CLAMP-TYPE CONNECTION 2.840.01-9901 1349716 NOZZLE, NOM.SIZE 1.2 2.860.01-2012 1020153 NOZZLE, NOM.SIZE 2.2 2.860.01-2022 1020161 NOZZLE, NOM.SIZE 3.2 2.860.01-2032 1020170 NOZZLE, NOM.SIZE 4.2 2.860.01-2042 1020188 NOZZLE, NOM.SIZE 5.2 2.860.01-2052 1020196 NOZZLE, NOM.SIZE 7 2.860.01-2070 1020200 NOZZLE, NOM.SIZE 9 2.860.01-2090 1020218 NOZZLE, NOM.SIZE 11...
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NOZZLE, NOM.SIZE 72 2.860.01-3072 1020439 NOZZLE, NOM.SIZE 76 2.860.01-3076 1020447 NOZZLE, NOM.SIZE 80 2.860.01-3080 1020455 NOZZLE, NOM.SIZE 84 2.860.01-3084 1020463 NOZZLE, NOM.SIZE 88 2.860.01-3088 1020471 NOZZLE, NOM.SIZE 92 2.860.01-3092 1020480 NOZZLE, NOM.SIZE 96 2.860.01-3096 1020498 NOZZLE, NOM.SIZE 100 2.860.01-3100 1020501 COIL ADAPTER 44, SIZE M40 -> M90 2.852.01-5202 1017713 LMD TEST COIL, NOM.SIZE 47 2.891.30-3047 1455117 LMD TEST COIL, NOM.SIZE 50 2.891.30-3050 1455206 LMD TEST COIL, NOM.SIZE 53 2.891.30-3053 1455290 LMD TEST COIL, NOM.SIZE 56 2.891.30-3056 1455389 LMD TEST COIL,...
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