Loma IQ3X, Operating Instructions Manual

Page: 75 / 88

75 Operating Instructions
Original Document Copyright © Loma Systems
A Product Registration Photo-eye must be fitted to use the Interval and Batch
options.
Test Window
This option is only displayed when either the Interval or Batch Test timing option is selected. It is
used to set a length of time in minutes to successfully complete a PV test, commencing from the
generation of the prompt. When using the Interval Test timing option, the length of time set
cannot be shorter then the time set in the Interval field.
Number of Passes
This field is displayed for all test types and timing options. It is used to set the number of passes
required for each test puck type to complete a PV test.
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Guidance on determining the number of passes to be used
For products that exhibit no product effect and where no Product Registration Photo-eye is
fitted, place each test puck type onto the product sample at the leading edge for the first pass
and then on the trailing edge for the second pass to ensure that the change of reject timing
point still results in the correct rejection of the product. A minimum of two passes per test puck
type is therefore suggested.
For products that exhibit no product effect but where a Product Registration Photo-eye is fitted,
you can place each test puck type anywhere within the product length. In this case a minimum
of one pass per test puck type is sufficient.
For products that exhibit a product effect, regardless of whether a Product Registration Photo-
eye is fitted, place each test puck type onto the product sample at the leading edge for the first
pass, in the middle for the second pass and on the trailing edge for the third pass to ensure not
only that the reject timing is correct for non photo-eye systems but also to obtain better
detection coverage of the product sample itself. A minimum of three passes per test puck type
is therefore suggested.
Fe Test
In this option you can enter the ferrous (chrome steel) test piece size in mm to be used for PV
testing.
Leave the option value blank if this test piece should not be used as part of the PV test.
Non-Fe Test
In this option you can enter the non-ferrous (brass) test piece size in mm to be used for PV testing.
Leave the option value blank if this test piece should not be used as part of the PV test.
St. Steel Test
In this option you can enter the stainless steel (normally 304 annealed) test piece size in mm to
be used for PV testing.
Leave the option value blank if this test piece should not be used as part of the PV test.