TPT January 2008

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January 2008 70 ›
The transducers and couplant are spun
at relatively high speeds around the test
bar or tube, allowing substantially higher
throughput speeds than traditional ‘spin the
tube’ type systems.
The new MultiMac™ eddy current tester
operates with encircling, sector, or rotary
test sensors. Customers can now use just
one tester to detect both short and long
surface defects in their product.
The instrument includes up to eight test
channels and a wide selection of test
parameters and special circuits to enhance
signal-to-noise. A multi-screen provides
simultaneous display of one to eight
channels in polar and linear mode.
Each channel can be individually
configured with different frequencies and
different channel modes – differential, for
example, to detect short weld-line defects,
and absolute for detecting long, continuous
surface flaws and open welds.
A choice of three thresholds per channel
can be mapped to any of eight outputs.
MultiMac can operate on a wide variety
of non-magnetic products, or use direct
current saturation systems to inspect
magnetic material.
Also available will be information on the
Rotoflux® flux leakage system for inspecting
tube to API standards.
Magnetic Analysis Corp’s representative
in India, Mr Prakash Pai of Inmar Corp,
Mumbai, India, will be present on the
booth.
Website:
Multimetals Limited is a manufacturer
and exporter of seamless extruded drawn
copper and copper alloy tubes. The
company supplies applications including
heat exchangers, nuclear and thermal
power plants, shipbuilding and repairs,
petroleum refineries, sugar plants, defence
establishments, and air conditioning and
refrigeration.
The product range includes tube and pipe
manufactured from copper, capillary, cupro-
nickel, admiralty brass, aluminium brass
and other brasses, together with bare, low
fin and U-bend tubes.
Other products include copper-alloy rods,
profiles and alloys such as aluminium and
manganese bronze, naval brass, cadmium
and tellurium copper.
The company, which exports to all
developed countries, has won 11 export
excellence awards in the last 13 years.
Website:
› The MultiMac™ 108 from Magnetic Analysis
Corp
œ Multimetals Ltd
India Stand TBC