Constant Metal Detection.

During the last couple of years, Constant and CEIA have utilised their experience and technology to develop the THS metal detector that incorporates a DSP-type microprocessor for the inspection of food and other products. This work has now resulted in the launch of their latest development, the CEIA-THS/3F Trio multi-frequency metal detector.

This multi-frequency metal detector can learn the frequency as well as product parameters required, by simply passing a product through the detector's aperture.

Product data, including the required frequency, are stored in the product memory and automatically changed along with product data when a product is selected from the stored selection on the menu of the Trio.

Thus, products wrapped in metallised film can be inspected by the same metal detector as that used for products in polyethylene, with different settings, which provides improved sensitivity for all products being inspected.

The Trio has an additional feature that can be applied when the product learn feature is being applied; it can be biased towards the detection of stainless steel. With this facility set on and the product wrapped in a metallised film, sensitivities of 1.0mm for ferrous metals, 1.2mm for non ferrous and 1.3mm with 316 stainless steel can be achieved.