CEL-430-Ultra-Wide-Range-Sound-Level-Meter_手册说明书指南

CEL-430 Ultra wide range sound level meter Operator ManualCASELLACELCEL-430/1 Class 1CEL-430/2 Class 2Integrating SoundLevel MetersProtective grill(do not remove)Class 1 or 2,1/2"MicrophonePreamplifier(cannot beremoved fromtheInstrument)MenuPowerUp or Down cursorStart/PauseStop/EnterWhen a key ispressed,the displaylights for 10 secondsHB331601v04020November 2004Casella USAPage 1 of 8(800)366-2966info@casellausa.com