3 - 16 Quick Check® 600/800 Series User’s Guide♦ To unlock the unit:1. Scan the “Unlock Specs and Tests” Special Code.The unit is now unlocked. You can now change any option setting.Using a Command CodeA Command Code is a bar code symbol that allows you to customize the QuickCheck 600/800 Verifier for your use. It is especially useful when you have one ortwo setups and you frequently switch between them. After you turn on the unitor when you want to change setups, just scan your customized Command Codefor that type of operation and then begin your work.About Command CodesThere are two different types of Command Codes — Command- (Minus) Codesand Command+ (Plus) Codes. These codes differ in the type of information theystore.• Command+ Codes let you store all the settings on the “Command CodeSelections Lists” below.• Command- Codes allows you to store all the settings listed on the CommandCode selection list except the beeper pitch, the decode direction and theoutput option settings (printer type, printout form and the AutoPrint/Storesetting).Command Code Selections ListTest CriteriaPassing grade: (Choose One)Traditional or ISO/IEC “A,” ISO/IEC “B,” ISO/IEC “C,” ISO/IEC “D”Decodability: Avg or ISO/IECGrades: Letters or NumbersNumber or scans/symbol: (Choose one)2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 15, 20, 30, 50, 100, VarScanning OptionsBeeper Pitch: (Choose One)Off or value between 1 and 31Extended Accuracy: (Choose One)Off, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 15, 20, 30, 50, 100, VarDecoding Direction: BothWays or Forward OnlyOutput OptionsDisplay OptionsUpperLine: (Choose One)Default or Average Bar Error, W/N Ratio, Decodability,RI & RD, P.C.S., Symbol Contrast, Rmin/Rmax, Modulation,EC(min), Defects, Message Type, Message Length or Check CharacterLowerLine: (Choose One)Default or Average Bar Error, W/N Ratio, Decodability,