Erhardt+Leimer OL 80 - Assembly; 5.1 Determining scanning direction; 5.2 Determining camera measuring range and distance between camera and web

BEA--220265-EN-04 BPage7
CCDarraycameraOptoLineOL80..
5. Assembly
Please observe the locally applicable and professional safety
and accident prevention regulations.
Assembly procedure:
5.1 Determinescanningprocedure
5.2 Determinecamerameasuringrangeanddistancebetween
 cameraandweb
5.3 Determinethesizeofthelighttransmitterandthemaximum
 distancebetweenthelighttransmitterandcamera
5.4 Assemblecamera
5.5 Assemblelighttransmitter
5.6 Determinebackground,mountblackscreenasrequired
5.7 Mountsupportrollerasrequired
Selectfrontlightingtoscanlinesortransparentwebs,edgeson
opaquewebsshouldbescannedusingbacklighting.Inbordercases,
thesuitablescanningprocessshouldbeselectedbytrialanderror.
ThedistanceKbetweenthecameraandwebinuencesthecamera
measuringrange:
- theshorterthedistance,thesmallerthemeasuringrange
- thesmallerthemeasuringrange,themoreprecisethemeasure-
ment(resolution)
Thefollowingdiagramwillhelpyoudeterminethedistancebetween
thecameraandwebforassemblypurposes.
 The dimensions in the diagram are approximate.
5.1 Determining scanning
direction
5.2 Determining camera mea-
suring range and distance
between camera and web
K
OL 8024
OL 8028
Measuringrange
incms
Distancebetweencamera
andwebKincms
OL 8050
Web
Distancebetweencameraandweb