Operating Instructions MA 42Operating_Instructions_8100460-6_MA42_e_15a 56 8100460-6 1/15Appendix A: Checklist for subjective audiometer testing- Clean the ear and head cushion!- Untangle all lines when necessary!- Are the headphone cushions in good condition?If not replace- Are plugs and leads in good condition/undamaged?- Are all controls working properly?- Is the Patient Response Key working properly (if available)?- Check batteries and renew if necessary!Instrument:........................................Manufacturer:…................................Serial No.:.........................................Examiner:........................................Test Signal QualityAll the test frequencies in the below table indicate typical hearing level and can be changed when necessary:Masking: “B” for Buzz tone, “G” for Noise, “V” for signal distortion, “S” for switching masking noise.Right Ear Level Left EarkHz 0,25 0,5 1 2 3 4 6 8 0,25 0,5 1 2 3 4 6 8 kHzAC 30dBHL50dBHL70dBHLBC 30dBHL50dBHL* When noise “B”, “G”, “V” or “S” is blocked, inform the service center!* When the test tone is heard at the masking ear, contact the service center!Air Conduction AudiogramRight Ear Level Left EarkHz 0,25 0,5 1 2 3 4 6 8 0,25 0,5 1 2 3 4 6 8 kHzShoulddBHL*LeftEarpieceIsdBHLLeftEarpieceRightEarpiece**IsdBHLRightEarpiece *** Should is the last measurement of the patient**For inverted measurement please reattach the headphoneIf the frequency difference between „Should“ and „Is“ for one ear averages more than 10 dB, contact the SERVICE CENTER!Bone Conduction AudiogramRight Ear Level Left EarkHz 0,25 0,5 1 2 3 4 6 8 0,25 0,5 1 2 3 4 6 8 kHzShoulddBHL*IsdBHLIf the frequency difference between „Should“ and „Is“ for one ear averages more than 10 dB, contact the SERVICE CENTER!Tested.............................................................................................Date:...............................................................................................