CALL: A.WIHARTA 081294124885 085778084789 087784022201 Karya Mandiri Instrument indonesia adalah supplier peralatan laboratorium baik eletronik maupun mekanik, serta berbagai macam instrument measurement, dengan didukung dari berbagai macam merk dari negara negara Eropa, US, dan beberapa negara di Asia seperti Korea, Japan dan Taiwan. Instrument yang kami sediakan seperti : Anemometer, Analitical Balance, Spectrophotometer, pHmeter, Laser survey, Micropipette, Peristaltic Pump, Flame photometer, Water bath heating cooling, Colorimeter, Water Strirer, Viscometer. Freezers, Refractometer, Polarimeter, Sound Level meter, Tachometer. Dll Kami juga menerima jasa service dan kalibrasi untuk peralatan laboratorium sesuai kemampuan kami.   Basic specifications Dimensions 63 ( W) × 120 ( H) × 23.5 ( D) mm ( 27% smaller than previous model) Weight 105 g ( 26% lighter than previous model) Standard compliance Measurement Act, JIS C1509-1 Class 2, IEC 61672-1 Class 2 Measurement functionality Sound level, equivalent sound level, sound exposure level, maximum sound level, and C-weighted peak sound level Frequency weighting characteristics A- and C-weighting Time weighting characteristics F and S Measured value storage 199 values A-weighting: The human ear hears different frequencies at different volumes. A-weighting, which employs a filter tuned for the frequency characteristics of the human ear, is used in most sound measurement applications. C-weighting: C-weighting uses a flat frequency filter. F ( fast) : Fast measurement is designed to mimic the response of the human ear. F-weighting is used in most sound measurement applications. S ( slow) : Slow measurement employs a slower response in order to make it easier to read indicated values.