WCA November 2007

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Measuring & control technologies
Wire & Cable ASIA – November/December 2007 51
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.
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:
Website:
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:
Website:
The complete programme of on-line measuring and control instruments m