Loma IQ3+ST, User Manual

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The User Interface
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Alternatively select the 'OK' green tick button and scan the product barcode with your barcode
reader.
Note that this field is only displayed in the screen if you are using a barcode reader and
have enabled the 'Barcode reader' option in the Service Options screen.

Reject delay
The following should be noted before setting up the Reject Delay and Reject Dwell timing for
a product.
Setting reject times is best done by passing the product, contaminated by a detectable metal
test sample, through the machine and the adjusting the delay (time or distance from detect to
reject) and dwell (time or distance the reject device operates for) to obtain a clean removal of
the contaminated product from the transport into the reject collection device. All units of time
are in seconds.
For systems where a Product Registration Photo-eye is not being used, the reject delay time
is the time in seconds between when a contaminant is detected in a product to when the
reject device is activated to remove it from the production line.
The position of the contaminant within the product (length) will directly affect the reject delay.
You must therefore make allowances in the delay time to ensure that wherever the
contaminant is located in the product a clean rejection is achieved.
For systems where a Product Registration Photo-eye is used, reject delay timing is always
timed from when the leading edge of the product activates the photo-eye regardless of where
in the product the metal contamination is situated.
When using variable speed systems, the delay is timed by distance which is entered in metres
in the Reject delay field. See the
Conveyor Setup screen for further information covering the
available speed mode options.
Tap in the Reject delay field to display the pop-up numeric keypad screen and enter the reject
delay time in seconds.
Or for variable speed systems, tap in the Reject delay field to display the pop-up numeric
keypad screen and enter the distance in metres.

Reject dwell
Reject dwell is the time or distance that the reject device operates for to remove a
contaminated product from the conveyor belt and into the reject collection device. It must
therefore be set to ensure clean removal of the contaminated product.
Please read through the information contained in the Reject delay section above for further
guidance. Reject timings may also be set in the
Rejects Setup screen.
Tap in the Reject dwell field to display the pop-up numeric keypad screen and enter the time
in seconds.
Or for variable speed systems, tap in the Reject delay field to display the pop-up numeric
keypad screen and enter the distance in metres.

Pack length
The Pack length field is displayed if a Product Registration Photo-eye is in use and the PEC
enable option has been selected in the Conveyor Setup screen. The detector needs to know
the length of the pack to enable it to function correctly.