Custom FDA Food Grade Metal Detector Machine PU Belt With 40*12cm Tunnel Size

Food grade metal detector for food industry / high quality food metal detector machine

About Shanan.pdf

HOW A METAL DETECTOR WORKS
 

HOW A METAL DETECTOR WORKS
The most widely-used type of metal detector in the food industry functions on the principle known
as the "balanced coil" system. This was first registered as a patent in the 19th century, but the
first industrial metal detector was not produced in the UK until 1948.
The progress of technology has taken metal detectors from valves to transistors, to integrated
circuits and more recently, into microprocessors. Naturally this has increased their performance
giving greater sensitivity, stability and flexibility, as well as widening the range of output signals and
information they provide.
All the same, modern metal detectors are still unable to detect every particle of metal passing
through them. The physical laws applied in the  technology limit the absolute capability of the
instrument. Consequently, as with any measuring  instrument, metal detectors have restrictions on
accuracy. These restrictions vary depending on the application, but the main criterion is the size of
the detectable metal particle. Despite this, though,metal detectors perform a valuable and essential role in process quality control.

About sensitivity 

For optimum sensitivity, the search head must be of the size appropriate for the specified food
product. It's important that the best attainable sensitivities are established and set for each
product, relating to product size, type and packaging. This process should only ever be carried
out in consultation with the manufacturer of your metal detector.
If you move your detection systems within your premises, or if you introduce new products, your
system must be re-evaluated - once again, in consultation with its manufacturer.
Many leading retailers will insist that their suppliers of private label goods agree any changes in
metal detection sensitivity settings, with them, in writing. If your company is a private label
manufacturer, Loma Systems strongly advise you to clarify the preferred policy with each of your
retailer customers.
Sensitivity adjustment controls must not be accessible to untrained employees. Access should
only be given to nominated, fully trained staff and for additional security, the controls should be
password-protected or kept locked.
Obviously, you will want to maximise the sensitivity of your detection system. However, you need
to guard against potential instability, where the effects of product/environment could cause false
rejects. You may find the following sensitivities helpful as guidelines.
Obviously, you will want to maximise the sensitivity of your detection system. However, you need
to guard against potential instability, where the effects of product/environment could cause false
rejects. You may find the following sensitivities helpful as guidelines

Optional reject 1 :Push rod

Optional 2 flap drop

Optional 3 Air blast

Appplication:

Food & Beverage Manufacturers

Food & Beverage Processors

Food & Beverage Distributors

Food & Beverage Storage Facilities

Food & Beverage Importers