WCA November 2007

Measuring & control technologies

Innovation and technology from Zumbach Zumbach manufactures a comprehensive range of non-contact, on-line measuring and control instruments. Zumbach technology is used for telecommunication wire, data wire, power cable, electronic and control cable, fibre optic cable, on extrusion lines of singles and jackets, CV-lines and rewinding stations.

New spark tester SIFMDC, Italy, has recently launched a new microprocessor-based spark tester. SIFMDC produces a wide range of spark testers, including: 50/60Hz, small series with a 3mA limited current; compact and large series with a 7mA limited current; 250Hz, 500Hz and 3kHz, small series with a 3mA limited current; and DC with a current limited to less than 3mA. These spark testers do not exceed the required level of current. They are built with a protective casing to prevent accidental contact, and are fitted with safety switches for cutting off the power supply if the casing should open. Additional safety is provided by the intrinsic protection of the self-limiting transformers, ensuring a longer life and preventing burnouts. High frequency spark testers are designed to resolve issues with super high velocity (2,500m/ min) testing, in accordance with standard UL1581, which requires that the defect remains inside the electrode for 9 sinusoids. In theory, 50Hz spark testers could be used with longer electrodes in order to satisfy the standard. In practice, however, manufacturers build devices with higher frequencies.

SIFMDC – Italy Fax : +39 035 4559358 Email : info@sifmdc.com Website : www.sifmdc.com

The complete programme of on-line measuring and control instruments m

Thanks to extensive research and development activities, the company uses lasers/optics, ultra-sonics, x-ray, high-voltage technology, computer hardware and software. Using this technology allows Zumbach to develop new and unique solutions, while numerous patents worldwide demonstrate the company’s strength in innovation. Some examples include: • highly accurate diameter and ovality measurement with 1-axis, 2-axis and 3-axis laser scanners (Odac ® ) • non-contact measurement of coating thickness ultra-sonic wall thickness scanners (Umac ® ) • eccentricity/concentricity and diameter and true minimum wall measurement and control on high-speed extrusion lines with only one gauge (Odex ® ) • x-ray measuring systems for cross-section measurement in CV-lines (Rayex ® ) • wall thickness control with automatic optimisation of minimum wall thickness (Sigma-Expert) • capacitance measurement of the highest accuracy (CAPAC ® ) • foam/foam skin CD-control (Cellmaster ® ) • integrated measuring/control systems for extrusion (Jacket- master) • ultra-sonic measuring and control systems for wall thickness with cutting edge digital technology (Wallmaster-Umac ® CI) • spark testers meeting all standards (AST, DST, IST) and calibrators • full circumferential detection of surface faults (KW trio, Simac ® ) • inductive conductor pre-heating with temperature control (Tempmaster) • non-contact temperature measurement of wires (Autac) • novel, easy to understand operator interface concept via CRT display (Usys 200, 2100, 8100)

Zumbach Electronic AG – Switzerland Fax : +41 32 356 0430 Email : sales@zumbach.ch Website : www.zumbach.com

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Wire & Cable ASIA – November/December 2007