644.1.6 Data deletionAfter analyzing all the data and confirm no problem, the data withininstrument can be deleted. Pressing 【 】or【 】 key in “Rebar Test”menu to select “Delete Data”, pressing【ENTER 】to select it , the datadeletion interface will occur, pressing 【ENTER 】again to delete all thedata within instrument. Please see chapter 3.4.5 for specific operation.4.2 Rust test4.2.1 Preparation before test4.2.1.1 Prepare the corrosion electrode(a)State in case(b)State for useFigure 4-3 Electrode1. Mixing liquidWhen electrode is produced, both ends have rubber sleeve, asshown in fig.4-3a. The bottom rubber sleeve is used to protectOperation manual of NOVASCAN-R800, R630, C310ANovatest S.r.l. www.novatest.it