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Table of Contents◗WEB GUIDING CONTROLSWeb ProductsWEB GUIDING SENSORSNexen Web GuidingProducts:Precise Yet RuggedNexen Web Guiding systems giveyou both; extreme precision,and rugged dependability.Precise enough for the laboratory,tough enough for the mill,Nexen Web Guiding Systemsare backed by a recognizedleader in guiding equipmentfor over three decades.You can be sure of quality,durability and performance...with NexenThree types of sensorsSeveral types of sensors areused to detect a web’s position.The type required for any webguiding system is determinedby the method required (EPC,CPC, or LFC) and type ofmaterial to be sensed.Infrared SensorThis type of sensor is theelectrical equivalent of thepneumatic sensor. Light istransmitted by a lamp acrossthe web edge. It is received by alight sensitive sensor. Web edgeposition is directly related to theamount of light sensed at thereceiving element. A variation ofthis method uses a pulsed LEDin the infrared range as a lightsource. This type of sensor isnot affected by ambient light,and is useful for processingphotosensitive materials.Line Following SensorLFC is achieved by bouncinglight off a web as it passesaround a transport roll in themachine. This type of sensorcontains the lamp and sensorelement in the same housing.Ultra Sonic SensorsUltra Sonic Sensors can beused to sense photo sensitiveproducts (photo film, printpaper, etc. ) or for transparentfilms with coating or printingnear the edge.Sensor Utilization ChartPRODUCTMODEL NUMBER EPC CPC LFC COMMENTSPH 16 912085 X X Opaque edges only. Pulsed LEDPH 21 912626 X X Miniature version of PH 16, Opaque edges only. Pulsed LEDLH 100 912119 X X Line follower and web or pattern edgesUH 21 912621 X X Opaque or transparent edges, Ultra SonicAWL 280 912662 X X Use with AS 10 Preamplifier to sense various web widths without repositioningAS 10 912721 X X Preamplifier used with AWL 280DimensionsSensor Mounting BracketProduct Number 3792Universal Mounting Bracket for use on allNexen Web Sensors. One is included freewith each sensor. Brackets can also bepurchased separately.324
Table of ContentsWeb ProductsWEB GUIDING SENSORSThe Eyes of the Web Guiding SystemDimensions5.51[140]WEB GUIDING CONTROLS ◗PHOTOHEADWEB EDGE1.18[30]2.36 1.97[60] [50]LIGHT RECEIVING SIDEINCHES[MM]WEB1.18[30]PH 16 Opaque edge sensorProduct Number 912085For sensing opaque web edges. It uses aninfrared pulsed LED light source, to eliminateproblems caused by ambient light. Because ofits wave length (950nm) it is also usable withphoto sensitive film or paper.PH 16 is provided with a mounting bracketfeaturing a micro adjustment screw for fineadjustment.CABLELIGHT SOURCESpecificationsSpace between emitter and receiver. . . . . . . . . . . 1.18 in. (30 mm)Measuring width . . . . . . . . . . . . . . . . . . . . . . . . ± .20 in. (± 5,08 mm)Cable length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 ft. (5m)Light source . . . . . . . . . . . . . . . . . Pulsed light emitting diode (LED)Light source wavelength . . . . . . . . . . . . . . . 950 nm (Near infrared)Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5 lb. (1,1 kg)Body material . . . . . . . . . . . . . . . . . . . . . . . . . Diecast aluminum alloyExitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 VDC@ 40mAOutput Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0-350 mVSensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.004 in. (0,1 mm)Temperature Range . . . . . . . . . . . . . . . . . . . . . . 32-122° F (0-50° C)Dimensions2.60[65]INCHES[MM]1.18[30]PH 21 Opaque edge sensorProduct Number 912626The PH 21 is a photo electric edge sensor for webs. One PH 21can be used for sensing either side of the web for Edge PositionControl or EPC. Two PH 21’s one on each side of the web, canbe used for Center Position Control or CPC. The PH 21 sensesedge position with a pulsed light emitting diode (LED), in theinfrared range. This light source is not affected by ambient light.The PH 21 is a miniaturized version of the PH 16. It is primarilyused to position a sensor in a dimensionally restricted area.PH 21 is provided with a mounting bracket featuring a microadjustment screw for fine adjustment.1.97[50].79[20].59[15].39[10]2.17[55]SpecificationsMeasuring range. . . . . . . . . . . . . . . . . . . . . . . . . ± .20 in. (± 5,08 mm)Cable length. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 ft. (5m)Light source . . . . . . . . . . . . . . . . . Pulsed light emitting diode (LED)Light source wavelength . . . . . . . . . . . . . . . 950 nm (Near infrared)Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.3 lb. (0,6 Kg)Body material . . . . . . . . . . . . . . . . . . . . . . . . . . Diecast aluminum alloyExitation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 VDC @ 40 mAOutput Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0-350 mVSensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.004 in. (0,1 mm)Temperature Range . . . . . . . . . . . . . . . . . . . . . . 32-122° F (0-50° C)325
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Table of ContentsPRODUCTCAT ALOG10-
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Table of Contents◗PRODUCT NUMBER
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Table of Contents◗FAMILY OF PRODU
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Table of Contents“Air Champ” ®
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Table of Contents◗APPLICATION GUI
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Table of ContentsWeb ProductsGUIDE
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Table of Contents◗ MICRO FRICTION
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Table of Contents◗“Air Champ”
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Table of ContentsWeb ProductsIn acc
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Table of ContentsWeb ProductsTENSIO
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Table of ContentsWeb ProductsHousin
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Table of Contents◗ AIR PRESSURE C
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Table of ContentsEclipse SERVOMOTOR
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Table of ContentsEclipse SERVOMOTOR
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Table of ContentsEclipse LINEAR MOT
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Table of ContentsEclipse NEMA AC MO
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Table of ContentsEclipse METRIC AC
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Table of Contents◗ BW MODEL BRAKE
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Table of Contents◗CALIPER BRAKES
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Table of Contents◗CALIPER BRAKESS
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Table of Contents◗DRUM BRAKES“A
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Table of ContentsDRUM BRAKES “Air
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Table of ContentsDRUM BRAKES “Air
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Table of Contents◗HEAVY DUTY BRAK
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Table of Contents◗METRIC BRAKES
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Table of Contents◗BRAKESWeb Produ
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Table of Contents◗TENSION CONTROL
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Table of Contents◗CLUTCH/BRAKES
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Table of Contents◗CLUTCH/BRAKESFM
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Table of Contents◗CLUTCH/BRAKESA
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Table of ContentsCLUTCH/BRAKES “A
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Table of Contents◗METRIC CLUTCH/B
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