PSC PowerScanTM RF manual Depth of Field, Definition of a mil

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Depth of Field

There are currently four different range models for the scanner. Depending upon the model type of your scanner, you’ll need to hold the unit at a given distance from the bar code to achieve optimum scanning results. The following diagrams provide depth of field information for each of the models when scanning grade A, Code 39 bar codes: Standard Range (SR), High Density (HD), Long Range (LR) and Extra Long Range (XLR).

Definition of a "mil"

A "mil" is equal to 0.001 inches. In the context of the illustrations in this section, a mil represents the minimum bar code element width. Thus a 5 mil bar code would have a minimum element width of 5 mils (or 0.005 inches).

NOTE

Measurements are based on SR models set with the standard 28° scan width (as opposed to the Half Angle setting of 14°). Reference the Programming Manual for more information about the Half Angle feature.

Specifications are subject to change without notice.

Figure 7. Depth of Field (SR)

Depth of Field

Paper Labels (SR decoded model, Code 39)

SCANNER	5 mil
SCANNER	7.5 mil
OF
FRONT		10 mil
FRONT			15 mil
				20 mil
						40 mil
									55 mil
			1			2			3			4				5
									FEET
0	10	20	30	40	50	60	70	80	90	100	110	120	130	140	150	160	170
								CENTIMETERS

User’s Guide

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Contents User’s Guide PSC Scanning, Inc DisclaimerTable of Contents Quick Start Instructions Unpack and Inspect Your ScannerReferences Installing the Battery Charging and Maintenance onVerifying Scanner Operation Connecting the Base Station to the Host TerminalNected to at the time of power-up Connecting Power to the Base Station Ment or interruption of system functionsLinking Newer configuration to the Base Station prior toLinking the Scanner to a Base Station May not be desirable to download a potentiallyVerifying Scanner-to-Base Station Communications Using the PowerScan RF System Battery Charging and Maintenance Not illuminate Tips for Extending Battery Life Disposing of Batteries Other batteries already present in the unit No LEDs illuminate, the battery may be tooFour Station Charger How to Scan Scanning TipsDefinition of a mil Specifications are subject to change without noticeDepth of Field Information about the Half Angle feature Depth of Field HDPaper Labels LR decoded model, Code More information about the Half Angle featureAre based on LR models set with the a 14 scan Reflective Labels LR decoded model, CodePaper Labels XLR decoded model, Code Reflective Labels XLR decoded model, CodeLED and Beeper Indications Grammable Scanner Green LED FunctionsScanner Yellow LED Functions Scanner Beeper FunctionsSpeaker Duration Comment Base Station LED FunctionsWhen a scanner is Active Symbologies Enhanced Scanning for Hard-to-Read Bar CodesYour nearest sales or service representative Scanner Labeling and NomenclatureIs a factory only repair item Laser CautionsLine and is not considered a malfunction Beam or attempt to repair the unit. DiscontinueRadio Frequency Interference Maintenance Cleaning the Scan WindowTroubleshooting Battery is charged. See Battery Charging and Maintenance onSample Bar Codes UPC-A User’s Guide Declaration of Conformity France Latin America Asia Pacific ItalyAustralia Japan Germany United Kingdom