Metrologic Instruments MS700i manual Depth of Field for the MS720i Scanner

Page 33

Depth of Field for the MS720i Scanner

Through the glass at the front of the scanner, safe, low powered laser beams are projected in a complex pattern that resembles a spider web. Each of the five scan fields that generate the scan pattern extends to a range of 178mm (7.0"). The range begins 178mm (7.0") from the face of the scanner window and extends from the unit for a distance of 381mm (15.0") measured along the scanning beam at the center of each scan segment. This 178mm - 381mm (7" - 15") range is the depth of field for the MS720i scanner. (Refer to Figure

12)

The scan pattern is projected at a slight angle downward from the front of the scanner (approximately 10 degrees, overall). As the scan fields move outward, they expand. Like an image expands from a film projector as it moves toward the screen at a movie theater, the scan pattern projects out to a well-defined region. Any label that is facing toward the scanner can be read at any point within the scanning field.

Figure 12

30

Image 33

Contents MS700i Series Laser Bar Code Projection Scanner Installation and User’s GuideTable of Contents Appendix B Appendix aAppendix C Appendix DIntroduction Unpacking List Scanner Connections to the Host Configuration of the Scanner to the Host System Cloning Cloning FeatureVersion 11 IBM 46XX Scanner Configuring the Scanner IBM 4684 and 4694 Systems Configuring the IBMPC Type Scanner Installation to a PC Keyboard PortPage PC Application Note Installation of the MS700 Series Stand Attaching the Scanner to the Stand Scanner performs a good read of a bar code MS700i and MS720i Series FeaturesNo Red or Green LED Visual IndicatorsNi la diode rouge, ni la diode verte nest allumée Signaux optiquesWeder rote noch grüne Leuchtdiodenanzeige Optische AnzeigenNé il diodo luminoso rosso né quello verde sono accesi Segnali otticiVolume Settings Labels InfraRed IR Object Sensor Symbol Orientation Active Scan Region for the MS700i and MS715i Scanner Active Scan Region for the MS720i Scanner Page Horizontal Scan Width vs. Distance for the MS720i Scanner Depth of Field for the MS700i and MS715i Scanner Code Type Code DensityMil /1000 Page Depth of Field for the MS720i Scanner Element Mil /1000 Code Type Minimum Small Code DensityPage Maintenance Applications and ProtocolsScanner Version Identifier Communication Protocols Appendix a SpecificationsMechanical ElectricalEnvironmental OperationalAppendix B Default SettingsSweda Three Beeps on Timeout No Beeps on IR Timeout Baud Rate Parallel Light 46XX Parallel Light Pen 46XX 232 Pin Function Appendix CEOT Version 2 Pin Assignments for Parallel CommunicationVersion 26 Pin Assignments for Multi-drop RS-422 Versions 11 and 24 Pin Assignments for RS-485 Pin Function Appendix D Warranty and Disclaimer Limited WarrantyDisclaimer Remarque Appendix EAnmerkung Patents Appendix FLED IndexLaserklasse UL/CSA/TUV