Operation manual of ZBL-R800, ZBL-R630, ZBL-C310AHotline: (86)010-51290405 Fax: (86)010-5129040617Output and Sys. Setup. The main menu interface displays with icons:anti-color display represents present selected option, normally displayrepresents unselected one.3.1.2 Keyboard operationAll the control operation are done through pressing keys in thekeyboard panel.1) 【a、b、_、`】 is used to select option. While selecting one option,pressing the 【ENTER】to enter into corresponding submenu. At thesame time, 【a、b、_、`】 can change parameter and switch options.2) The LCD backlight of detector is closing as default after power ison. The backlight can enhance the recognition of LCD, allowing usersto identify contents of display. After entering into main menu interface,pressing 【`】to choose whether open or close backlight.3)【ENTER】selects specific option.4)【SAVE】stores data and parameter.5)【BACK】goes back to previous interface, 【MENU】 goes backto main menu.6)【 】 is power switch.3.2 Data OutputData output interface is as figure3-2, Data Output has two types- USBtransmission and GPRS transmission. USB transmits testing data intoU-disk, then into computer for analysis by software. GPRS transmitstesting information to server; users can login on server through clientsoftware to establish task of transmission and receiving, check andanalysis of testing data.