Operation manual of ZBL-R800, ZBL-R630, ZBL-C310AHotline: (86)010-51290405 Fax: (86)010-5129040644instrument reset operation is completed, and then you can pre-scan(see instruction in 3.4.2.3), you can also press 【SAVE】key to enterinto test(a square cursor will occur in the top left corner), while testing,moving sensor in an uniformed speed, when sensor is getting closer torebar, scroll bars lengthen gradually, the current thickness valuedecreases. When sensor goes over rebar, peep alarming, the testedrebar will be displayed in coordinate (shown in pachytene infigure3-30).Thickness value of cover and coordinates of tested rebarwill be displayed in the upper side of rebar and the tested result will bestored simultaneously.When the moving distance is more than 1.2m and goes over the rangeof each screen, it will turn pages automatically, the amount of wholepages in the top left corner will increase by one.After the test is completed, pressing【BACK】key to store testing dataand go back to parameter setting interface in figure 3-28 for parameterresetting , and test again, or pressing 【MENU】to go back to mainmenu.Illustration:1. Retesting, excessive display of profile scanning is same withgrid scanning for definition and operation.2. User can select range and method of measurement in profilescanning, see 3.4.1.1 for definition and operation.3. Each screen of profile scanning can show 1.2m, while in gridscanning, it is 1.0m.3.4.4 Data displayIt is mainly used for displaying of stored objects and their data andimages.In the main menu as shown in figure3-6, pressing【a】 or【b】 toshift to the front of “Data Display”, then pressing 【ENTER】to