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.COMMENT PAGE 1
.HEADER TOP SPLIT RIGHT UPPER ARABIC
I.	SUMMARY
.SKIP 2
	A.	SYSTEM PURPOSE AND FUNCTIONS
.SKIP 2
	B.	SYSTEM FEATURES
.SKIP 2
	C.	RECOMMENDATIONS
.SKIP 2
	D.	ACKNOWLEDGEMENTS
.SKIP 2
	E.	MANUAL PREPARATION
.SKIP 2
	TABLE I
.PAGE

.COMMENT PAGE 2 .CHAPTER CHAPTER-I .CENTER I. SUMMARY .BR .CENTER ----------- .SKIP 5 .LM 5 .RM 70 THIS MANUAL DESCRIBES THE NP-8 SPUNLACED INSPECTION SYSTEM AND RECOMMENDS PROCEDURES FOR ITS OPERATION AND MAINTENANCE. TWO SIMILIAR MODELS OF THIS TYPE INSPECTOR ARE NOW INSTALLED ON LINES 1 AND 2 AT OLD HICKORY. ENGINEERING DEPARTMENT DRAWINGS AND SUPPLEMENTARY REFERENCE MANUALS SUPPLIED WITH EACH SYSTEM ARE LISTED IN THE APPENDIX. .SKIP 2 A. SYSTEM PURPOSE AND FUNCTIONS .BREAK -------------------------------- .SKIP THE SL INSPECTORS ARE ELECTRO-OPTICAL, LASER-SCANNING SYSTEMS DESIGNED FOR ON-LINE DEFECT DETECTION AND QUALITY MONITORING OF WIDE WEB-TYPE PRODUCTS. .SKIP THE INSPECTOR PERFORMS FOUR BASIC FUNCTIONS: .SKIP .LIST .INDENT -3 *##DETECTS DISCRETE DEFECTS AND PROVIDES A PRINTED RECORD OF THEIR LOCATIONS IN THE MILL ROLL. THE LOCATION IS GIVEN BY THE LANE NUMBER (UP TO THREE) AND TO THE NEAREST YARD IN THE MACHINE DIRECTION (MD). THE YARD IN WHICH A DEFECT OCCURS IS CALLED A DEFECTIVE YARD ZONE. .SKIP .INDENT -3 *##CALCULATES DEFECTIVE YARD ZONE RATES OVER SELECTABLE LENGTHS OF PRODUCT AND COMPARES THIS RATE WITH ADJUSTABLE "DEFECT RATE" LIMITS. .SKIP .INDENT -3 *##MONITORS AND PROVIDES AN ANALOG RECORDING OF PRODUCT NONUNIFORMITY; CONTINUOUSLY COMPARES THE NONUNIFORMITY LEVEL WITH ADJUSTABLE PRODUCT STANDARD LIMITS. .SKIP .INDENT -3 *##ISSUES AN ALARM AND SENDS AN "ALARM DOFF" SIGNAL TO THE WINDUP WHEN ANY ONE OF SIX FAULT CONDITIONS HAS BEEN SENSED BY THE INSPECTOR. TYPICAL FAULT CONDITIONS ARE "DEFECT ZONE RATE EXCEEDED," "PRODUCT NONUNIFORMITY LIMIT EXCEEDED,"ETC. .SKIP 2 .END LIST
.COMMENT PAGE 3 .TEST PAGE 60 B. SYSTEM FEATURES .BR ------------------- .SKIP DETAILED SPECIFICATIONS ARE GIVEN IN THE APPENDIX AND SUMMARIZED IN TABLE I. A FEW OF THE MORE DISTINGUISHING SYSTEM FEATURES ARE TABULATED BELOW: .SKIP .LIST .INDENT -3 *##100% OPTICAL INSPECTION OF WEBS UP TO 13 FEET WIDE. .SKIP .INDENT -3 *##BOTH TRANSMISSION AND REFLECTION CHANNELS TO DETECT SURFACE AS WELL AS INTERNAL DEFECTS. .INDENT -3 *##HIGH SPEED OPERATION TO 900 FT/MIN. .SKIP .INDENT -3 *##DUPLICATE PRINTOUTS OF INSPECTION RESULTS FROM UP TO THREE SLITS IN EACH MILL ROLL. EACH RECORD CONTAINS THE MILL AND SLIT-ROLL NUMBER, LOCATION OF ALL DEFECTS, AND TOTAL YARDAGE ON EACH ROLL. .SKIP .INDENT -3 *##HANDS-OFF, COMPLETELY AUTOMATIC OPERATION DURING A SEQUENTIAL PRODUCTION RUN. .SKIP .INDENT -3 *##CONTINUOUS SELF-CHECK MONITORING OF KEY INTERNAL FUNCTIONS. .SKIP .INDENT -3 *##MINIMUN OPERATING MAINTENANCE THROUGH AIR-CLEANED AND PURGED OPTICS, SOLID-STATE ELECTRONICS, AND EXTENSIVE POWER REGULATION AND SHIELDING. .SKIP 2 .END LIST .COMMENT PAGE 4 C. RECCOMMENDATIONS .BR -------------------- .SKIP PERSONNEL RESPONSIBLE FOR THE MAINTENANCE OF THE SYSTEM SHOULD BE THOURGHLY FAMILIAR WITH THE CONTENTS OF THIS MANUAL. THE SAFETY, MAINTENANCE, AND OPERATING SECTIONS OF THE MANUAL SHOULD BE UPDATED PERIODICALLY TO REFLECT SYSTEM MODIFICATION OR REVISED PLANT PRACTICES. ALSO AN ACCURATE LOG OF ALL PERIODIC OR CORRECTIVE MAINTENANCE SHOULD BE KEPT FOR FUTURE REFERENCE. .SKIP D. ACKNOWLEDGEMENTS .BR -------------------- .SKIP THE AUTHOR IS INDEBTED TO J. A. ROBINSON, ET. AL. WHOSE PREVIOUS WORK (AN-14462) WAS THE SOURCE OF MANY OF THE ILLUSTRATIONS AND DESCRIPTIONS FOUND IN THE DIGITAL TIMING, GATING, AND DEFECT SECTIONS OF THIS MANUAL. .PAGE .CHAPTER CHAPTER-II .PAGE E. MANUAL PREPARATION .BR ---------------------- .BR .SKIP 2 THE SOURCE FILES USED TO PREPARE THE TEXT FOR THIS DOCUMENT ARE STORED ON AN RKO5 DISK LOCATED AT THE ENGINEERING PHYSICS LABORATORY. INCLUDED WITH THE MANUAL ARE 2 FLOPPY DISK. ONE CONTAINS AN OS/8 OPERATING SYSTEM, THE OTHER CONTAINS A COPY OF THE SOURCE FILES MENTIONED ABOVE.THE PROGRAM, TECO, IS USED TO MAKE CHANGES, CORRECTIONS, AND/OR ADDITIONS TO THE SOURCE FILES.THE PROGRAM, MALSRX.BI, IS USED TO MAKE REVISED OR ADDITIONAL COPIES OF THIS MANUAL. THIS PROGRAM IS AN OS/8 BATCH PROGRAM. FOR A DESCRIPTION OF THE OS/8 OPERATING SYSTEM AND ASSOCIATED PROGRAMS REFER TO THE OS/8 HANDBOOK (DEC-S8-OSHBA-A-D). .PAGE .CENTER TABLE I .PAGE



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