HandHeld Entertainment SV Series manual Setting the Proper Scan Distance

Page 113

A

SV Series Setup Hints - Scanning

Distance and Angle

Introduction

The Hand Held Products SV Series of Scanner/Verifiers requires a fixed scanning distance and angle for maximum verification analysis accuracy. This is similar to the requirement of a wand "guide" on a portable bar code verifier to ensure the optics is placed at a consistent angle. If the "guide" is not placed properly, analysis results will become inaccurate, although the bar code will still be decoded.

This section is intended to provide some hints to help make the basic scanning setup as easy and quick as possible in order to allow more time to concentrate on the application portion of the installation.

This section is written with the assumption that Hand Held Products ScanView software is being used as the setup tool. A null modem serial communication cable is required to interface the PC to an SV unit during the setup process. An appropriate power / interface cable must also be connected in order to operate the SV unit.

Setting the Proper Scan Distance

A proper and fixed scan distance is required to make sure the laser beam is in focus, therefore providing the correct optical resolution for the particular SV model. The specified scan distance is indicated on a label on the side of each unit.

The SV Series' feature of being able to measure a bar code's X dimension makes it convenient for setting up scan distance. In the manufacturing process each SV unit is programmed to accurately measure the X dimension when scanning at the optimum distance. Therefore, if the analysis of a bar code with a known X dimension indicates an accurate result, the scanner is set to the proper scan distance. Below are some basic steps to set the proper scan distance using the X dimension as the adjustment factor:

1.Place the SV Calibration symbol (supplied with each SV unit) in the laser beam.

2.Roughly adjust the scan distance so the READ led is on.

3.Press the SPACE bar in ScanView to get an analysis of the code.

4.Adjust scan distance until the X dimension matches the calibration symbol's X dimension within +/- .1 mil. All Hand Held Products calibration symbols have a 10 mil X dimension unless otherwise specified on the symbol.

Quick Check® SV Series User’s Guide

A - 1

Image 113

Contents User’s Guide Disclaimer Canadian Notice Statement of Agency ComplianceFCC Class B Compliance Statement Laser Beam Statement of RoHS ComplianceSV Series Use with UL-listed Equipment Enclosure Description Laser SafetyPage Table of Contents Scanner Setup ISO Parameter Grade Thresholds Technical Specifications Chapter a SV Series Setup Hints Scanning Distance and Angle Introduction Quick Check SV SeriesScanView Software SV Series Model SpecificationsLaser Beam SV100Control Panel Reset ButtonConnector Sync Inputs + 5 VDC Power InputIsolated Sync Input Diagram Envelope Sync Mode Edge Sync ModeOutput Ports Communication Sync CommandsIndicator LEDs 1 Power/Sync LEDSystem Displays Calibration LEDSerial Port Specifications Serial Port ConnectorSerial Port Pin-out Serial Port Transmission FormatPos Chars Parameters + or indicating sign of avg. max. bar Symbology Identifier Table UPC-A Quick Check SV Series User’s Guide System Requirements ScanView Installation and SetupScanView Software Installation PC Communication Port Setup Software Operation Warnings Setup MenuTitle Bar Screen Display Menu Bar Screen DisplayStatic Codes Mode Select SymbologiesMoving Codes Mode Ladder Mode and Picket Fence ModeAbout Menu Item Advanced MenuSupport Menu All Data Points, Last 64 Data Points Speed Button Bar Screen DisplayZoom Erase Current Session DataSession Mode Transmit SV CommandsSession Mode Notes Modes Of OperationBar Code Analysis Screen Reflectance Profile ModeAnalysis Screens Bottom Panel Bar Code Analysis ScreenRight Panel Bar Code Analysis Results for a Previous Bar CodeGraph Display Area Reflectance Profile Screen Color CodingReflectance Profile Screen Scanner Setup Scanner Positioning Bar Code Travel Speed Considerations SV Scanner/Verifier Setup ProcedureBar Code Travel Direction Quick Check SV Series User’s Guide Quick Check SV Series User’s Guide Good Reflectance Profile Bad Reflectance Profile Picket Fence DirectionSetting Ladder Mode Scanning Length Using ScanView Software Picket Fence Bar Code Positioning SpecificationsCalibration Ladder DirectionProcedure Adjusting Scanner Gain and Offset Desired Signal Amplitude and Placement Quick Check SV Series User’s Guide Data Match Commands B SV Command LanguageCheck for specific data ~BCa##bc…bbb……mmm……bbb…… etc. up to 32 characters max~ Brnbb .. + Define increment or decrement data check ExamplesDecrementing Examples Incrementing ExamplesGet the Scan Rate Relationship Between ~BC and ~Br CommandsDiagnostic Commands D ~HB# Hardware Configuration Commands HExample return using ScanView ~HO# Operational Mode Example return using ScanView inputted ~HB5Display the verifier parameters ~HQ# Transmission ModeQuick Check SV Series User’s Guide ~Hdx01nnn Sets scanner gain or offset ~LD## Passing percent decode Label Setup Commands L~LA## Overall passing grade ~LE# ~LFxy Analyze special subsymbology parameters~LL ~LI# Include the specified symbology for a labelQuick Check SV Series User’s Guide ~LQ# Enable or Disable Port Activations by Partial Decodes ~LT# Sync Input Source ~LS## Set minimum number of scans for valid read~LZ## Set Number of Codes per Label i.e., per sync period ~LV## Output Interface Mode~LX# Sync Type ~OS# Set Transmission Data Format Output Mode Selection Commands OIDs Analysis Low High Units Parameters Value Output Port Setup Commands P~PBpiiaaabbb Port barcode decision block parameters PCS IDs Description Low Value High Value ~PPpiiaaa Port action parametersPort State PASS/FAIL Parameters Indicator Digit Value ~PR#### Port/LED reset stateIndicator System Control Commands SChecking SV Status with ~HT How to Set Up Single Scan OperationDisable Verification Execute the calibration procedureEnable Verification ~SK# Communication SyncOperation Description Set the number of scans for Software Commanded Read Mode~SN### Raster Check~Sl## Set the low target reflectance value for calibration Reset the System~Sh## Set the high target reflectance value for calibration Data Transmission Example ~Ssxy Command Example~Stx Program Command Indicator Header Mode 00 ~LV00~Stx Command Example ~St5 Output Interface Modes DescriptionsMode 01 LED Operation Mode 01 ~LV01Mode 01 I/O operation SV Commands Important to Mode Mode 02 I/O operation Mode 02 ~LV02~LV02 Mode 02 LED Operation~LQ0 Mode 12 I/O operation Mode 03 ~LV03Mode 12 ~LV12 ~LV12 Mode 12 LED Operation~LDxx Mode 16 I/O operation Mode 16 ~LV16~PP801xxx Mode 16 LED Operation~LV16 ~PB811xxxyyy Operation Mode 17 ~LV17~LV17 SV Commands Important for ModeLED Operation ~PB815xxx000 Mode 18 ~LV18 LED Operation ~LV18 ~PB806xxx000 Mode 19 ~LV19 ~LV19 ~LDxx Mode 20 ~LV20 ISO Parameter Grade Thresholds Reference Decode Parameter Specification Technical SpecificationsQcolvsv Series Product Specifications Scanning Performance-SV Series Model PowerScanner Options SyncSync Mode Moving Bar Codes SymbologiesOperation Modes OutputsNo Sync Free Scan Operation Sync Mode Stationary Bar CodesParameters Analyzed Quick Check SV Series User’s Guide Quick Check SV Series User’s Guide Maintenance Maintenance/Customer SupportCleaning Technical AssistanceOnline Technical Assistance For Further Information Product Service and RepairJapan MalaysiaOnline Product Service and Repair Assistance Limited WarrantyQuick Check SV Series User’s Guide Setting the Proper Scan Distance Session Mode Screen Showing the X Dimension Measurement Setting the Proper Scan AngleButton Example of Good Scan Profile Examples of Scan Profile Parameters Out of Range Calibration HintsQuick Check SV Series User’s Guide Page Hand Held Products, Inc