Maico MA 50, Руководство по эксплуатации

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Operating Instructions MA 50
Geba_MA50_Fe_11a.doc 26 851 406/2 11/11
Checklist for Subjective Audiometer Testing
- Clean the ear and head cushion!
- Untangle all lines when necessary
- Are the headphone cushion 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 Quality
All 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 Ear
kHz 0,25 0,5 1 2 3 4 6 8 0,25 0,5 1 2 3 4 6 8 kHz
LL
30dB HL
50dB HL
70dB HL
KL
30dB HL
50dB HL
* 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 Audiogram
Right Ear Level Left Ear
kHz 0,25 0,5 1 2 3 4 6 8 0,25 0,5 1 2 3 4 6 8 kHz
Should
dBHV*
Left
Earpiec
e Is
dBHV
Left
Earpiec
e
Right
Earpiec
e** Is
dBHV
Right
Earpiec
e **
* Should is the last measurement of the patient
**For inverted measurement please reattach the headphone
If the frequency difference between „Should“ and „Is“ for one ear averages more than 10 dB, contact the SERVICE CENTER!
Bone Conduction Audiogram
Right Ear Level Left Ear
kHz 0,25 0,5 1 2 3 4 6 8 0,25 0,5 1 2 3 4 6 8 kHz
Should
dBHV*
Is
dBHV
If the frequency difference between „Should“ and „Is“ for one ear averages more than 10 dB, contact the SERVICE CENTER!
Tested.............................................................................................
Date:...............................................................................................