4 Maintenance ........................................................................................................................ 57
4.1 General maintenance procedures ........................................................................................ 57
4.2 Cleaning the probe tip .......................................................................................................... 59
4.3 Repair ................................................................................................................................... 60
4.4 Warranty ............................................................................................................................... 60
4.5 Periodic calibration ............................................................................................................... 61
5 Technical specifications .................................................................................................... 63
5.1 Calibration Properties ........................................................................................................... 68
5.2 Reference equivalent threshold values for transducers ....................................................... 72
5.2.1 Impedance - Frequencies and intensity ranges ......................................................... 72
5.2.2 Audiometry – Survey of reference and max hearing level tone audiometry .............. 73
5.3 Pin Assignments ................................................................................................................... 82
5.4 Electromagnetic compatibility (EMC) ................................................................................... 84
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