ppbRAE 3000 User’s Guide18User InterfaceThe instrument’s user interface consists of the display, LEDs, analarm transducer, and four keys. The keys are:Y/+MODEN/-Flashlight on/offThe LCD display provides visual feedback that includes the reading,time, battery condition, and other functions.In addition to their labeled functions, the keys labeled Y/+, MODE,and N/- act as “soft keys” that control different parameters and makedifferent selections within the instrument’s menus. From menu tomenu, each key controls a different parameter or makes a differentselection.DisplayY/+ keyN/- keyMODE keyFlashlighton/off keyLEDs and flashlight
