Maico MA 53, Руководство по эксплуатации

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Operating Instructions MA 53
Geba_MA53_e_13a.doc 53 851 430/3 11/11
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 Quality
All the test frequencies in the below table indicate typical hearing level and can be changed when necessary:
Test these frequencies and enter the following abbreviations, if necessary: “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
AC
30dB HL
50dB HL
70dB HL
BC
30dB HL
50dB HL
* When noise “B”, “G”, “V” or “S” has been checked, please inform your service center!
* If conduction test signals are also audible in the non-test ear, please inform your service center!
Air Conduction Audiogram with test person
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
Target
dBHL*
Left
Earpiece
Actual
dBHL
** Left
Earpiece
Right
Earpiece
Is
dBHL
**
Right
Earpiece
* Target value is the value measured in the last audiogram of the test person
**Repeat the measurement with headphones the wrong way around
If the difference between target and actual value at a particular frequency or between right and left headphones is more than 10 dB,
please inform your 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
Target
dBHL*
Is
dBHL
If the difference between target and actual value at a particular frequency or between right and left headphones is more than 10 dB,
please inform your service center!
Tested.............................................................................................
Date:...............................................................................................