Loma IQ3X Operating Instructions Manual page 48

Operating Instructions
Imperial systems
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CTB = Encoder pulses per revolution x π x d
Where: d = the diameter of the roller to which the encoder is fitted in inches. The number of
pulses provided directly relates to the transport speed. JP7 on the detector control board must
be set in position 1-2.
Log speed prob
Because the detector can only work within a predetermined speed range it is possible for the
belt speed to move outside the limit of reliable operation of the machine. Selecting the Log
speed prob option will generate either speed too slow or speed too fast run errors to advise
operators.
DSP type
DSP stands for Digital Signal Processing. The following options are available for selection:
Off
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The resultant signal is based directly on how much the product signal deviates from the Learnt
product reference. Use this option where there is a high level of environmental noise.
Standard
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The resultant signal is produced using a tuned detection filter. This is the standard method of
detection for conveyor and pipeline heads. For reactive product the Rate option can give
enhanced performance.
Wide
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This detection filter is used where the product speed is not known. For example in free fall and
pharmaceutical applications.
Rate
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This filter is based on how quickly the field changes. This is the recommended option for reactive
product.
Product Limit
You can restrict the number of products that you can add to the system by entering a value,
subject to a maximum of 200.
Alarm Output
In some instances, such as when carrying out product testing, you may wish to turn off the
audible alarm. Options are provided to Energise or De-Energise the audible alarm.
Lamp Type
Options of Dome and Stack are provided. The IQ3X Metal Detection System is generally supplied
with an LED Lamp Stack so the Stack option should be selected.
Noise Filter
This feature provides options for automatically filtering out background noise which could affect
the identification of contaminants in products. Options of OFF, LOW and HIGH are provided for
selection.
Copyright © Loma Systems
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Original Document