Control & Instrumentation
Detect and reject contamination
The likelihood of a particle of metal being found in a packet of food industry, although it
crisps can be eliminated using the new free-fall metal detector is equally suitable for
from Constant Instruments. scanning powders,
When used in a weighing and packaging line for example, the granules and other loose
CEIA THS/G21 can be positioned immediately above a bagging bulk materials in the
machine, where it checks the falling product at high speed for pharmaceutical, chemical
any metal inclusions, and can automatically trigger the rejection and plastics industries.
of any contaminated bags. When the THS/G21 is
The new multi-spectrum unit has a far higher detection fitted with a reject valve,
sensitivity than earlier instruments, enabling it to detect minute a contaminated portion
ABOVE: The new CEIA THS/G21 free-fall
contaminant particles at very high flow rates. Non-magnetic as of product can be metal detector from Constant Instruments
well as magnetic metals can be detected, including high grade automatically ejected
stainless steel. without slowing the production flow. If mounted on a packaging
The THS/G21 is particularly suitable for inspecting granular foods machine, the unit can send a command not to cut the
such as breakfast cereals, potato crisps and other snack products. contaminated bag, so that the double bag can later be easily
"The instruments can be placed in close proximity with each identified and manually removed from the production cycle.
other without causing interference, enabling two to be located The detector constantly monitors its detection characteristics,
side by side for example in twin bagging machines for high allowing continuous compensation for any variations arising from
velocity applications," said Constant managing director Leslie Hunt. environmental factors and giving it an extremely high immunity
The THS/G21 is available as a detecting head only for multi- to external interference.
head OEM weighers, or Constant Instruments can supply it as An exclusive Autolearn feature optimises detection sensitivity
an integrated system including the ejection valve. for maximum speed and precision - equivalent to hundreds of
With a stainless steel housing for hygienic operation and ease conventional learning transits.
of cleaning, the instrument is principally targeted at the snack For more information visit: www.constant-ceia.com
See us on
Stand P15
Atex approved
Screw conveyors
Rotary & Slide valves
Loading chutes
Ibis Intergrid Ltd.
Materials Handling Engineers
Tel: 01539 731900
Suppliers, manufacturers
Fax: 01539 731910
& distributors of bulk
handling equipment Email: sales@ibis-int.co.uk
worldwide for 25 years
Web: www.ibis-int.co.uk
www.solidsandbulk.co.uk February 2010 Solids & Bulk Handling 37
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