Opticon LPN5627, LPR5627 user manual Measuring Scanner Performance, Quality Bar Code Labels

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Manual No. 25-ULPNR101-03; Feb, 2003

LPN5627 / LPR5627 Laser Fixed Mount

Scanner

 

Hatched No-Read

Specular Zone

+5 °

Height of

barcode

- 10 °

3) Quality Bar Code Labels

The quality of the bar code label can affect the scanning performance. Poor quality labels are more difficult to decode and may result in non-reads or potential misreads. The bar code label should be printed to specifications. This means that the bars are printed within spec, with the correct widths, no ink spread, crisps edges and no voids. There should be a sufficient quiet zone on both end of the bar code label. For best results, the paper or label stock should have a matte finish to diffuse light. The print contrast signal (which is a comparison of the reflectance of the bars and the background stock) should be as high as practical.

Measuring Scanner Performance

Two methods are helpful in determining the optimum position of the scanner. The first method is to program the scanner for Trigger Disable and Continuous Read modes. The scanner will be always on and will continuously read the same bar code. Since the buzzer sounds each time the bar code is read, the sound of the buzzer can be used like a “Geiger counter”. As the position of the scanner changes the sound of the buzzer will change. The buzzer sound will be loudest and most continuous at the best reading positions.

The Read Rate Test

The second method, the Read Rate Test, provides a mathematical calculation of scanning performance. In this test the scanner scans a bar code 700 times and then calculates the number of those scans that resulted in a good decode. That number, expressed as a percentage, will be transmitted to the host.

For example, 93% means that the scanner decoded the bar code symbol 93 times out of the 650 scan attempts. By performing the Read Rate Test with the scanner mounted in various positions you can determine which of those locations results in the best performance.

How to perform the Read Rate Test

Perform the following steps after you have correctly configured communications to the computer via your RS232C port and power is made available to the scanner:

Send the command: <Escape> U8 <Carriage Return> Note: Be sure to use capital letters, e.g. “U8”, not “u8”.

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Contents Manual No -ULPNR101-03 February User’s ManualPage Contents Configuring the Scanner Technical SpecificationsScanner Servicing and Maintenance Introduction and Getting StartedSection Introduction and Getting Started Product Overview Quick Start-Up ProcedureSymbologies Supported Section Technical Specifications Physical SpecificationsOptical Specifications Recommended operation α at + 60 degrees or less PitchSkew Tilt RotationLPR5627 Raster Pattern CurvatureRS232 Communications Specifications Electrical SpecificationsConnector Pin-outs Ordering Information Environmental SpecificationsModel Focal Distance Distance to the Bar CodeDepth-of-Field Avoiding Specular Reflection Measuring Scanner Performance How to perform the Read Rate TestQuality Bar Code Labels 700d OK 93.5% CODE-39 Test Tips for Insuring Highest Data Integrity Application Notes Tips for Achieving High ThroughputPresence/Absence of bar code Scanner Transmits Tips for Verifying the Presence of a Bar CodeProgramming Menus & Commands Section Configuring the ScannerDefault Settings Parameter Factory Default SettingModified and/or Customized Scanners Common Causes of Poor PerformanceScanner Labeling Cdrh Class II Laser DevicePage Programming the Scanner ESC Computer Command CRReset All Defaults Computer Function / Description Reset All Defaults U1 Command U1Command What if you make a mistake?Appendix B Prefix/Suffix of Numeric Characters Enable character length Positive & Negative Bar Codes Motor Control Index Appendix CCommand Description Global Default & Scanner ConfigurationsGlobal Default & Scanner Configurations Page Symbology Selection Symbology Selection Add/Activate Specific Bar Code SymbologiesAdd/Activate Specific Bar Code Symbologies Disable all WPC Delete/Deactivate Specific Bar Code SymbologiesOptions for UPC Delete/Deactivate Specific Bar Code SymbologiesOptions for Code Options for Codabar NW-7 Codabar NW-7 Format Options for Interleaved 25 Format Standard and Interleaved Options for Iata Fixing the Number of Digits Disable fixationCreating a Prefix and/or Suffix UPC-A Setting Prefixes Identifying the SymbologySetting Prefixes Identifying the Symbology Setting Suffixes Identifying the SymbologySetting Suffixes Identifying the Symbology Direct Input of Numeric Characters Direct Input of Alpha Characters Direct Input of Control Characters Enable Number of Characters/Digits TransmittedEnable Number of Characters/Digits Transmitted Disable Number of Characters/Digits Transmitted Communication Parameters Disable Number of Characters/Digits TransmittedCommunication Parameters Unlimited HandshakingBuzzer Operation Disable buzzerBuzzer Operation Positive & Negative Bar Codes Setting the Trigger FunctionSelecting the Read Mode Trigger Function Enabled Trigger Function Disabled Selecting the Read ModeScanner Timeout Trigger Enabled Mode only Redundant Decoding Print Quality Adjustments Transmitting Error Indications Trigger Enabled onlyGood Read LED Operation Sequencer Controls Motor Controls Sequencer ControlsAppendix D Dimensional Drawings LPR5627 Raster Optical Performance typical unit Appendix E LPN5627 Optical Performance typical unit

LPN5627, LPR5627 specifications

The Opticon LPR5627 and LPN5627 are advanced barcode scanning devices designed for a wide range of applications in retail, logistics, and inventory management. These models from Opticon stand out due to their combination of versatility, durability, and cutting-edge technology.

One of the main features of the Opticon LPR5627 and LPN5627 is their exceptional scanning performance. With a high-speed processor and advanced imaging technology, these devices can capture various barcode formats, including 1D and 2D codes such as QR codes, Data Matrix, and PDF417. This versatility ensures that users can efficiently handle different types of products and services in dynamic environments.

Another noteworthy aspect of the LPR5627 and LPN5627 is their ergonomic design. The devices are lightweight and easy to maneuver, allowing for extended use without causing strain or discomfort. The intuitive button layout also simplifies the scanning process, enabling quick and efficient operation even for those unfamiliar with barcode scanners.

Durability is a key characteristic of these models. The Opticon LPR5627 and LPN5627 are built to withstand the rigors of daily use in busy environments. They feature a sturdy construction that can endure drops, dust, and moisture, ensuring reliable performance in various settings from warehouses to retail stores.

In terms of connectivity, these devices offer multiple options, including USB and Bluetooth. This flexibility allows for seamless integration with existing systems, whether it's directly connecting to a computer or wirelessly pairing with mobile devices. This adaptability helps businesses improve their operational efficiencies and enhance overall productivity.

Power management is another strong suit of the LPR5627 and LPN5627. Equipped with long-lasting batteries, these devices minimize downtime, allowing staff to focus on their tasks without interruption. This feature is particularly beneficial in high-demand situations where continuous scanning is essential.

Moreover, Opticon has integrated advanced software solutions into the LPR5627 and LPN5627, providing users with the tools needed for effective data management. These software options enable real-time inventory tracking, facilitating better decision-making and contributing to operational excellence.

In summary, the Opticon LPR5627 and LPN5627 barcode scanning devices are designed for high-performance scanning with a focus on durability, user comfort, and technological advancement. Their ability to scan a wide variety of barcode formats, coupled with features that enhance productivity, make them essential tools for businesses looking to streamline operations and improve efficiency in today's competitive landscape.
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