Omron V440-F, Руководство пользователя

Страница: 34 / 500

2-3
2 Quick Start
V440-F C-Mount Code Reader User Manual
2
-2 Pos
ition
th
e Read
er and
Set
Up Opt
ics
2
2
-1-2
LED Indicator
s
2-2 Position the Reader and Set Up Optics
• Use the C-Mount Lens Options tables in 2-2-1 , Determining the Optical Setup , to find a C-Mount
lens that achieves the camera standoff and field of view required for your application. Be sure that the
resulting image resolution is adequate to decode the symbol sizes that will be used in your application.
• An external light will likely be needed to illuminate the work area where images will be captured and
symbols will be decoded. You can choose lighting from any vendor, including NERLITE or FLV from
Omron. NERLITE Smart Series Illuminators are an example of such lighting. The
NERLITE Smart
Series Ring Illuminator shown below left can be used with a Bracket Kit shown below right
designed for mounting the Ring Light to the V440-F reader.
Note: Refer to the V440-F Datasheet for Ring Light and Bracket Kit options, dimensions, and part numbers.
• If possible, tip the reader relative to the symbol to avoid the glare of direct specular reflection.
• If your application requires the reader to be oriented perpendicular to the symbols it will be decoding,
you can use a
Ring Light Polarizer shown below left and a Lens Polarizer on the V440-F shown
below right to avoid the glare of direct specular reflection.
Note: Refer to the V440-F Datasheet for Polarizer Kit and Lens Polarizer options, dimensions, and
part numbers.
• Symbols can be rotated tilted at any angle. However, for best results, symbols should be aligned with
the field of view. In the case of linear symbols, aligning the bars in the direction of movement ladder
orientation will minimize image blurring and will result in more consistent decodes.
Important: Avoid excessive skew or pitch. Maximum skew is ±30° and maximum pitch is ±30° . The
illustration below shows approximate skew axis, pitch axis, and tilt axis.