Pioneer ™ EN-4accuracy of the count. The balance automatically recalculates the Average Piece Weight when the number of partson the pan is less than three times the original sample size. The display shows [APwW.OPT] each time the APW isoptimized.3.3 Percent Mode – Use this mode to measure the weight of a sample as a percentage of a reference weight.To access the Percent Mode, press Unit until the display shows [PErCEnt].Establish a new Reference Weight - With Clear reference [CLr.rEF] displayed, Press No to use the previouslysaved Reference Weight. Press Yes to establish a new Reference Weight. Put the reference sample on the panand press Yes to accept or No to abort.Percent – Place the object(s) to be compared to the reference weight on the pan.3.4 Weigh Below FeatureRemove Weigh Below Cover Attach wire or string to Hook Suspend sample4. SETTINGS4.1 Menu NavigationInCal*SPANLINEAR**AZSMFILTERA.TAREGRADGBL RSTEND.SETCOUNTAPWOPTPERCENTEND.MODEND.UNITGRAMMILLIGRAMKILOGRAMOUNCENOT ALLUNITSSHOWNOUT STAA. PRINTCONTENTLINE FOEND.PRTBAUDPARITYHAND.SHEND.R232CALSETUPMODEPRINTRS232END.LOCKNOYESUNITPOUNDCAL ADJ* InCal models only** Not available in InCal modelsEND.CALENTER MENU – When the balance is on, press and hold Unit/Menu until [mMENU] appears.Release the button and the Calibrate [.CAL.] menu will display.MENU NAVIGATION – Select menus, menu items and settings through use of the Yes and No buttons.Solid arrows point to the content displayed when Yes is pressed, Dashed lines when No is pressed.CHANGING SETTINGS – To select the displayed Setting, press Yes. To move to the next Setting, press No.EXIT MENU – When [.END.] is displayed, press Yes to exit the menu function, or press No to return to the Calmenu. Note: Press and hold No at any time to exit quickly.