Microscan MS-4 User Manual download pdf (Page 355)

100

101

MS-4 Imager User’s Manual A-23

Appendices

Appendix G — Object Detector

In a typical operation, an imager will wait for symbol data only during a triggered read

cycle. A read cycle is initiated by a “trigger” and can be in the form of a serial command

from the host (internal trigger) or a signal from an object detector (external trigger).

When an object detector (also called a sensor, package detector, etc.) is used, it is set up

so that its beam will bounce off the approaching object and the resulting pulse will be sent

to the imager to begin the read cycle. Typically, a detector is positioned so that it will

detect the presence of an object before its symbol can be read.

An object detector is mounted in almost any position relative to the object as long as the

object passes within range of the detector and direct or reflected light from the detector

does not interfere with the imager’s reception.

As the item continues to move down the line, its symbol moves into the imager beam and

is decoded.

Object and Symbol

Object Detector

Imager

1 2 ... 350 351 352 353 354 355 356 357 358 359 360 ... 389 390

Comments to this Manuals

No comments

Microscan MS-4 User Manual Page 355

Comments to this Manuals

Related products and manuals for Bar code readers Microscan MS-4