Filtec OV-II Maintenance, Troubleshooting And Service Manual page 26

OV-II Maintenance, Troubleshooting and Service Manual
2-16
8. Observe the Detect Sensitivity and the LAST DETECT functions.
They indicate the relative strength of the detected object in terms of
the number of detection points. It goes up as the size and/or the
darkness of the object increases. When the SENSITIVITY is too
high, then the CURRENT DETECTS will be greater than zero even
for bottles which have no real object.
9. If the DETECT for the zone is still too high, then lower the sensi-
tivity by another 25 points. Again, clear the counters, let another
1,000 bottles pass through, and check the reject rate. Repeat this
process until the false reject rate is acceptable.
10. When the adjustment is complete, make sure that all the desired
inspection subsystems on the CONTROL > ISW screen have their
REJECT STATUS functions set to ON, and that the main rejector is
turned ON.
11. After adjustment, always verify reject operation by passing test
bottles for all the inspection zones through the system.
12. Save the new settings using the CONTAINER > BOTTLE
CHANGEOVER screen.
PLUGGED NECK/COLOR SORT EXCESSIVE FALSE REJECTS
If the CURRENT light level value goes below the LOWER LIMIT or
goes above the UPPER LIMIT, then the bottle is a reject.
Industrial Dynamics Company, Ltd. © Form 42600 (10/03)