2. check the availability of a sound level meter that the battery has sufficient power to run or don't, and the sound is in use or not.3. calibrate the accuracy of the sound level meter with validation. (Noise Calibrator) in order to achieve accuracy in measuring should be done every time before and after the implementation method of calibration accuracy. Should consult the guide using the tools given by the manufacturer.4. other materials such as forms, save the monitored sound, maps, hotels, manufacturing process, etc.
การแปล กรุณารอสักครู่..
