Navigate to the Calibration screen (at this point don't start the calibration procedure). Carefully place the calibrator over the microphone capsule, ensuring not to twist either your sound metersound meterFor compliance purposes, readings with an ANSI Type 2 sound level meter and dosimeter are considered to have an accuracy of ±2 dBA, while a Type 1 instrument has an accuracy of ±1 dBA. A Type 2 meter is the minimum requirement by OSHA for noise measurements and is usually sufficient for general-purpose noise surveys.https://en.wikipedia.org › wiki › Sound_level_meterSound level meter - Wikipedia or the calibrator as this can damage the microphone. Activate the calibrator at the desired tone, which is normally 94dB.
How do you calibrate sound level meter?
- Get something with a speaker. ...
- Put the 2 devices at the same distance of the speaker, with the microphones facing the speaker. ...
- Play the calibration tone and adjust the volume so the Sound Level Meter or the calibrated phone say that the level is between 60-70 dB to use as reference.
When should a sound level meter be calibrated?
Calibration of your sound level meter by its manufacturer manufacturer is something I recommended annually. Some regulations (like the 2005 Control of Noise at Work Regulations) state that a sound level meter should be returned every two years and the acoustic calibrator every year.May 14, 2015
How do we calibrate the noise meter?
Take your external calibrator and turn it towards the microphone on your unit. Taking your calibrator and putting it right over your microphone is very effective as well. Then, you simply turn on your calibrator and let it works its magic. This will calibrate your sound level meter.Jul 21, 2010
What is sound calibrator?
A Sound Level Calibrator is used to produce a known sound pressure level. It is a hand-held device that emits an audible tone of very accurate level and frequency. Typically the calibrator is fitted over the meter's microphone and the reading is either checked manually by the user or automatically by the meter.Jul 25, 2017
How often do noise dosimeters need to be calibrated?
every 12 months
Does a sound meter need to be calibrated?
We often get asked, "Why do I need to calibrate my sound level meter?" The answer is simple, calibration is vital to check that your sound level meter is working properly when you measure noise.
How often is an acoustic calibration required?
Audiometer calibration shall be checked acoustically, at least annually, according to the procedures described in this appendix. The equipment necessary to perform these measurements is a sound level meter, octave-band filter set, and a National Bureau of Standards 9A coupler.