Doc. Ref.No: Q875-0143/ENG
Issue 2
Met 30+ Operating Manual
12/01/10
3.4 Sensitivity
Gradient
Sensitivity is higher around the peripheries of the aperture and somewhat lower
through the central axis of the aperture. Quoted sensitivities are always given for the
least sensitive area of the aperture, that being along the central axis of the aperture.
3.5 Product
Effect
Some products can produce electrical signals when passed through the metal
detector aperture thus making it appear as though there is contamination present.
This is because the product is electrically conductive due to various factors such as
moisture, salt, metallic oxide content, packaging etc.
If there is product effect seen during the automatic setup of a product, the detector
will automatically set an envelope around the product effect signal. This will ensure
that the product effect signals are ignored during production thus preventing false
detection.
If a product has any effect then the resulting detection envelope will be bigger, this
bigger envelope will therefore result in a decrease in sensitivity of the detector.
3.6 Scope Of This Manual
Below is a summary of the information contained in each section of the manual:
Setting up the machine
A description of the user interface to the detector (display and keypad) is in this
section. Following this is a test to make sure that the basic system is working
correctly. This is followed by details of how to set up the system for a particular
product, including detection parameters and timer types.
Using the software
A complete reference to the software. Every option in the software is described.
Operation Chart
Block diagram of the MET 30+, 1
f
and 3
f
menu system.
Troubleshooting Guide
A list of common problems that may be encountered and possible solutions.
Sample test guide
Detail sample test instructions.
File Name: Q875-0143 ENG Iss2 Met30+ Operating.doc
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