Have it calibrated yearly by the manufacturer and for daily, if you have someone with normal hearing listen to the various levels that will at least let you know that it is working. The operator should run through the testing before they start to make sure that the unit is set up correctly.
Any recommendations on how to calibrate the machine?
Have it calibrated yearly by the manufacturer and for daily, if you have someone with normal hearing listen to the various levels that will at least let you know that it is working. The operator should run through the testing before they start to make sure that the unit is set up correctly.